|
442
|
1 |
/**
|
|
|
2 |
* @license
|
|
498
|
3 |
* lodash 3.10.1 (Custom Build) <https://lodash.com/>
|
|
|
4 |
* Build: `lodash modern -o ./lodash.js`
|
|
|
5 |
* Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
|
|
|
6 |
* Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
|
|
|
7 |
* Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
|
|
488
|
8 |
* Available under MIT license <https://lodash.com/license>
|
|
442
|
9 |
*/
|
|
|
10 |
;(function() {
|
|
|
11 |
|
|
498
|
12 |
/** Used as a safe reference for `undefined` in pre-ES5 environments. */
|
|
442
|
13 |
var undefined;
|
|
|
14 |
|
|
498
|
15 |
/** Used as the semantic version number. */
|
|
|
16 |
var VERSION = '3.10.1';
|
|
|
17 |
|
|
|
18 |
/** Used to compose bitmasks for wrapper metadata. */
|
|
|
19 |
var BIND_FLAG = 1,
|
|
|
20 |
BIND_KEY_FLAG = 2,
|
|
|
21 |
CURRY_BOUND_FLAG = 4,
|
|
|
22 |
CURRY_FLAG = 8,
|
|
|
23 |
CURRY_RIGHT_FLAG = 16,
|
|
|
24 |
PARTIAL_FLAG = 32,
|
|
|
25 |
PARTIAL_RIGHT_FLAG = 64,
|
|
|
26 |
ARY_FLAG = 128,
|
|
|
27 |
REARG_FLAG = 256;
|
|
|
28 |
|
|
|
29 |
/** Used as default options for `_.trunc`. */
|
|
|
30 |
var DEFAULT_TRUNC_LENGTH = 30,
|
|
|
31 |
DEFAULT_TRUNC_OMISSION = '...';
|
|
|
32 |
|
|
|
33 |
/** Used to detect when a function becomes hot. */
|
|
|
34 |
var HOT_COUNT = 150,
|
|
|
35 |
HOT_SPAN = 16;
|
|
|
36 |
|
|
|
37 |
/** Used as the size to enable large array optimizations. */
|
|
|
38 |
var LARGE_ARRAY_SIZE = 200;
|
|
|
39 |
|
|
|
40 |
/** Used to indicate the type of lazy iteratees. */
|
|
|
41 |
var LAZY_FILTER_FLAG = 1,
|
|
|
42 |
LAZY_MAP_FLAG = 2;
|
|
|
43 |
|
|
|
44 |
/** Used as the `TypeError` message for "Functions" methods. */
|
|
|
45 |
var FUNC_ERROR_TEXT = 'Expected a function';
|
|
|
46 |
|
|
|
47 |
/** Used as the internal argument placeholder. */
|
|
|
48 |
var PLACEHOLDER = '__lodash_placeholder__';
|
|
|
49 |
|
|
|
50 |
/** `Object#toString` result references. */
|
|
|
51 |
var argsTag = '[object Arguments]',
|
|
|
52 |
arrayTag = '[object Array]',
|
|
|
53 |
boolTag = '[object Boolean]',
|
|
|
54 |
dateTag = '[object Date]',
|
|
|
55 |
errorTag = '[object Error]',
|
|
|
56 |
funcTag = '[object Function]',
|
|
|
57 |
mapTag = '[object Map]',
|
|
|
58 |
numberTag = '[object Number]',
|
|
|
59 |
objectTag = '[object Object]',
|
|
|
60 |
regexpTag = '[object RegExp]',
|
|
|
61 |
setTag = '[object Set]',
|
|
|
62 |
stringTag = '[object String]',
|
|
|
63 |
weakMapTag = '[object WeakMap]';
|
|
|
64 |
|
|
|
65 |
var arrayBufferTag = '[object ArrayBuffer]',
|
|
|
66 |
float32Tag = '[object Float32Array]',
|
|
|
67 |
float64Tag = '[object Float64Array]',
|
|
|
68 |
int8Tag = '[object Int8Array]',
|
|
|
69 |
int16Tag = '[object Int16Array]',
|
|
|
70 |
int32Tag = '[object Int32Array]',
|
|
|
71 |
uint8Tag = '[object Uint8Array]',
|
|
|
72 |
uint8ClampedTag = '[object Uint8ClampedArray]',
|
|
|
73 |
uint16Tag = '[object Uint16Array]',
|
|
|
74 |
uint32Tag = '[object Uint32Array]';
|
|
|
75 |
|
|
|
76 |
/** Used to match empty string literals in compiled template source. */
|
|
442
|
77 |
var reEmptyStringLeading = /\b__p \+= '';/g,
|
|
|
78 |
reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
|
|
|
79 |
reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;
|
|
|
80 |
|
|
498
|
81 |
/** Used to match HTML entities and HTML characters. */
|
|
|
82 |
var reEscapedHtml = /&(?:amp|lt|gt|quot|#39|#96);/g,
|
|
|
83 |
reUnescapedHtml = /[&<>"'`]/g,
|
|
|
84 |
reHasEscapedHtml = RegExp(reEscapedHtml.source),
|
|
|
85 |
reHasUnescapedHtml = RegExp(reUnescapedHtml.source);
|
|
|
86 |
|
|
|
87 |
/** Used to match template delimiters. */
|
|
|
88 |
var reEscape = /<%-([\s\S]+?)%>/g,
|
|
|
89 |
reEvaluate = /<%([\s\S]+?)%>/g,
|
|
|
90 |
reInterpolate = /<%=([\s\S]+?)%>/g;
|
|
|
91 |
|
|
|
92 |
/** Used to match property names within property paths. */
|
|
|
93 |
var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\n\\]|\\.)*?\1)\]/,
|
|
|
94 |
reIsPlainProp = /^\w*$/,
|
|
|
95 |
rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\n\\]|\\.)*?)\2)\]/g;
|
|
|
96 |
|
|
442
|
97 |
/**
|
|
498
|
98 |
* Used to match `RegExp` [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns)
|
|
|
99 |
* and those outlined by [`EscapeRegExpPattern`](http://ecma-international.org/ecma-262/6.0/#sec-escaperegexppattern).
|
|
442
|
100 |
*/
|
|
498
|
101 |
var reRegExpChars = /^[:!,]|[\\^$.*+?()[\]{}|\/]|(^[0-9a-fA-Fnrtuvx])|([\n\r\u2028\u2029])/g,
|
|
|
102 |
reHasRegExpChars = RegExp(reRegExpChars.source);
|
|
|
103 |
|
|
|
104 |
/** Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks). */
|
|
|
105 |
var reComboMark = /[\u0300-\u036f\ufe20-\ufe23]/g;
|
|
|
106 |
|
|
|
107 |
/** Used to match backslashes in property paths. */
|
|
|
108 |
var reEscapeChar = /\\(\\)?/g;
|
|
|
109 |
|
|
|
110 |
/** Used to match [ES template delimiters](http://ecma-international.org/ecma-262/6.0/#sec-template-literal-lexical-components). */
|
|
442
|
111 |
var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;
|
|
|
112 |
|
|
498
|
113 |
/** Used to match `RegExp` flags from their coerced string values. */
|
|
442
|
114 |
var reFlags = /\w*$/;
|
|
|
115 |
|
|
498
|
116 |
/** Used to detect hexadecimal string values. */
|
|
|
117 |
var reHasHexPrefix = /^0[xX]/;
|
|
|
118 |
|
|
|
119 |
/** Used to detect host constructors (Safari > 5). */
|
|
|
120 |
var reIsHostCtor = /^\[object .+?Constructor\]$/;
|
|
|
121 |
|
|
|
122 |
/** Used to detect unsigned integer values. */
|
|
|
123 |
var reIsUint = /^\d+$/;
|
|
|
124 |
|
|
|
125 |
/** Used to match latin-1 supplementary letters (excluding mathematical operators). */
|
|
|
126 |
var reLatin1 = /[\xc0-\xd6\xd8-\xde\xdf-\xf6\xf8-\xff]/g;
|
|
|
127 |
|
|
|
128 |
/** Used to ensure capturing order of template delimiters. */
|
|
442
|
129 |
var reNoMatch = /($^)/;
|
|
|
130 |
|
|
498
|
131 |
/** Used to match unescaped characters in compiled string literals. */
|
|
|
132 |
var reUnescapedString = /['\n\r\u2028\u2029\\]/g;
|
|
|
133 |
|
|
|
134 |
/** Used to match words to create compound words. */
|
|
|
135 |
var reWords = (function() {
|
|
|
136 |
var upper = '[A-Z\\xc0-\\xd6\\xd8-\\xde]',
|
|
|
137 |
lower = '[a-z\\xdf-\\xf6\\xf8-\\xff]+';
|
|
|
138 |
|
|
|
139 |
return RegExp(upper + '+(?=' + upper + lower + ')|' + upper + '?' + lower + '|' + upper + '+|[0-9]+', 'g');
|
|
|
140 |
}());
|
|
|
141 |
|
|
|
142 |
/** Used to assign default `context` object properties. */
|
|
442
|
143 |
var contextProps = [
|
|
498
|
144 |
'Array', 'ArrayBuffer', 'Date', 'Error', 'Float32Array', 'Float64Array',
|
|
|
145 |
'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Math', 'Number',
|
|
|
146 |
'Object', 'RegExp', 'Set', 'String', '_', 'clearTimeout', 'isFinite',
|
|
|
147 |
'parseFloat', 'parseInt', 'setTimeout', 'TypeError', 'Uint8Array',
|
|
|
148 |
'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap'
|
|
442
|
149 |
];
|
|
|
150 |
|
|
498
|
151 |
/** Used to make template sourceURLs easier to identify. */
|
|
|
152 |
var templateCounter = -1;
|
|
|
153 |
|
|
|
154 |
/** Used to identify `toStringTag` values of typed arrays. */
|
|
|
155 |
var typedArrayTags = {};
|
|
|
156 |
typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
|
|
|
157 |
typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
|
|
|
158 |
typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
|
|
|
159 |
typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
|
|
|
160 |
typedArrayTags[uint32Tag] = true;
|
|
|
161 |
typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
|
|
|
162 |
typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
|
|
|
163 |
typedArrayTags[dateTag] = typedArrayTags[errorTag] =
|
|
|
164 |
typedArrayTags[funcTag] = typedArrayTags[mapTag] =
|
|
|
165 |
typedArrayTags[numberTag] = typedArrayTags[objectTag] =
|
|
|
166 |
typedArrayTags[regexpTag] = typedArrayTags[setTag] =
|
|
|
167 |
typedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false;
|
|
|
168 |
|
|
|
169 |
/** Used to identify `toStringTag` values supported by `_.clone`. */
|
|
|
170 |
var cloneableTags = {};
|
|
|
171 |
cloneableTags[argsTag] = cloneableTags[arrayTag] =
|
|
|
172 |
cloneableTags[arrayBufferTag] = cloneableTags[boolTag] =
|
|
|
173 |
cloneableTags[dateTag] = cloneableTags[float32Tag] =
|
|
|
174 |
cloneableTags[float64Tag] = cloneableTags[int8Tag] =
|
|
|
175 |
cloneableTags[int16Tag] = cloneableTags[int32Tag] =
|
|
|
176 |
cloneableTags[numberTag] = cloneableTags[objectTag] =
|
|
|
177 |
cloneableTags[regexpTag] = cloneableTags[stringTag] =
|
|
|
178 |
cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
|
|
|
179 |
cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
|
|
|
180 |
cloneableTags[errorTag] = cloneableTags[funcTag] =
|
|
|
181 |
cloneableTags[mapTag] = cloneableTags[setTag] =
|
|
|
182 |
cloneableTags[weakMapTag] = false;
|
|
|
183 |
|
|
|
184 |
/** Used to map latin-1 supplementary letters to basic latin letters. */
|
|
|
185 |
var deburredLetters = {
|
|
|
186 |
'\xc0': 'A', '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A',
|
|
|
187 |
'\xe0': 'a', '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a',
|
|
|
188 |
'\xc7': 'C', '\xe7': 'c',
|
|
|
189 |
'\xd0': 'D', '\xf0': 'd',
|
|
|
190 |
'\xc8': 'E', '\xc9': 'E', '\xca': 'E', '\xcb': 'E',
|
|
|
191 |
'\xe8': 'e', '\xe9': 'e', '\xea': 'e', '\xeb': 'e',
|
|
|
192 |
'\xcC': 'I', '\xcd': 'I', '\xce': 'I', '\xcf': 'I',
|
|
|
193 |
'\xeC': 'i', '\xed': 'i', '\xee': 'i', '\xef': 'i',
|
|
|
194 |
'\xd1': 'N', '\xf1': 'n',
|
|
|
195 |
'\xd2': 'O', '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O',
|
|
|
196 |
'\xf2': 'o', '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o',
|
|
|
197 |
'\xd9': 'U', '\xda': 'U', '\xdb': 'U', '\xdc': 'U',
|
|
|
198 |
'\xf9': 'u', '\xfa': 'u', '\xfb': 'u', '\xfc': 'u',
|
|
|
199 |
'\xdd': 'Y', '\xfd': 'y', '\xff': 'y',
|
|
|
200 |
'\xc6': 'Ae', '\xe6': 'ae',
|
|
|
201 |
'\xde': 'Th', '\xfe': 'th',
|
|
|
202 |
'\xdf': 'ss'
|
|
442
|
203 |
};
|
|
|
204 |
|
|
498
|
205 |
/** Used to map characters to HTML entities. */
|
|
|
206 |
var htmlEscapes = {
|
|
|
207 |
'&': '&',
|
|
|
208 |
'<': '<',
|
|
|
209 |
'>': '>',
|
|
|
210 |
'"': '"',
|
|
|
211 |
"'": ''',
|
|
|
212 |
'`': '`'
|
|
442
|
213 |
};
|
|
|
214 |
|
|
498
|
215 |
/** Used to map HTML entities to characters. */
|
|
|
216 |
var htmlUnescapes = {
|
|
|
217 |
'&': '&',
|
|
|
218 |
'<': '<',
|
|
|
219 |
'>': '>',
|
|
|
220 |
'"': '"',
|
|
|
221 |
''': "'",
|
|
|
222 |
'`': '`'
|
|
|
223 |
};
|
|
|
224 |
|
|
|
225 |
/** Used to determine if values are of the language type `Object`. */
|
|
442
|
226 |
var objectTypes = {
|
|
|
227 |
'function': true,
|
|
498
|
228 |
'object': true
|
|
442
|
229 |
};
|
|
|
230 |
|
|
498
|
231 |
/** Used to escape characters for inclusion in compiled regexes. */
|
|
|
232 |
var regexpEscapes = {
|
|
|
233 |
'0': 'x30', '1': 'x31', '2': 'x32', '3': 'x33', '4': 'x34',
|
|
|
234 |
'5': 'x35', '6': 'x36', '7': 'x37', '8': 'x38', '9': 'x39',
|
|
|
235 |
'A': 'x41', 'B': 'x42', 'C': 'x43', 'D': 'x44', 'E': 'x45', 'F': 'x46',
|
|
|
236 |
'a': 'x61', 'b': 'x62', 'c': 'x63', 'd': 'x64', 'e': 'x65', 'f': 'x66',
|
|
|
237 |
'n': 'x6e', 'r': 'x72', 't': 'x74', 'u': 'x75', 'v': 'x76', 'x': 'x78'
|
|
|
238 |
};
|
|
|
239 |
|
|
|
240 |
/** Used to escape characters for inclusion in compiled string literals. */
|
|
442
|
241 |
var stringEscapes = {
|
|
|
242 |
'\\': '\\',
|
|
|
243 |
"'": "'",
|
|
|
244 |
'\n': 'n',
|
|
|
245 |
'\r': 'r',
|
|
|
246 |
'\u2028': 'u2028',
|
|
|
247 |
'\u2029': 'u2029'
|
|
|
248 |
};
|
|
|
249 |
|
|
498
|
250 |
/** Detect free variable `exports`. */
|
|
442
|
251 |
var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports;
|
|
|
252 |
|
|
498
|
253 |
/** Detect free variable `module`. */
|
|
442
|
254 |
var freeModule = objectTypes[typeof module] && module && !module.nodeType && module;
|
|
|
255 |
|
|
498
|
256 |
/** Detect free variable `global` from Node.js. */
|
|
|
257 |
var freeGlobal = freeExports && freeModule && typeof global == 'object' && global && global.Object && global;
|
|
|
258 |
|
|
|
259 |
/** Detect free variable `self`. */
|
|
|
260 |
var freeSelf = objectTypes[typeof self] && self && self.Object && self;
|
|
|
261 |
|
|
|
262 |
/** Detect free variable `window`. */
|
|
|
263 |
var freeWindow = objectTypes[typeof window] && window && window.Object && window;
|
|
|
264 |
|
|
|
265 |
/** Detect the popular CommonJS extension `module.exports`. */
|
|
442
|
266 |
var moduleExports = freeModule && freeModule.exports === freeExports && freeExports;
|
|
|
267 |
|
|
498
|
268 |
/**
|
|
|
269 |
* Used as a reference to the global object.
|
|
|
270 |
*
|
|
|
271 |
* The `this` value is used if it's the global object to avoid Greasemonkey's
|
|
|
272 |
* restricted `window` object, otherwise the `window` object is used.
|
|
|
273 |
*/
|
|
|
274 |
var root = freeGlobal || ((freeWindow !== (this && this.window)) && freeWindow) || freeSelf || this;
|
|
442
|
275 |
|
|
|
276 |
/*--------------------------------------------------------------------------*/
|
|
|
277 |
|
|
|
278 |
/**
|
|
498
|
279 |
* The base implementation of `compareAscending` which compares values and
|
|
|
280 |
* sorts them in ascending order without guaranteeing a stable sort.
|
|
|
281 |
*
|
|
|
282 |
* @private
|
|
|
283 |
* @param {*} value The value to compare.
|
|
|
284 |
* @param {*} other The other value to compare.
|
|
|
285 |
* @returns {number} Returns the sort order indicator for `value`.
|
|
|
286 |
*/
|
|
|
287 |
function baseCompareAscending(value, other) {
|
|
|
288 |
if (value !== other) {
|
|
|
289 |
var valIsNull = value === null,
|
|
|
290 |
valIsUndef = value === undefined,
|
|
|
291 |
valIsReflexive = value === value;
|
|
|
292 |
|
|
|
293 |
var othIsNull = other === null,
|
|
|
294 |
othIsUndef = other === undefined,
|
|
|
295 |
othIsReflexive = other === other;
|
|
|
296 |
|
|
|
297 |
if ((value > other && !othIsNull) || !valIsReflexive ||
|
|
|
298 |
(valIsNull && !othIsUndef && othIsReflexive) ||
|
|
|
299 |
(valIsUndef && othIsReflexive)) {
|
|
|
300 |
return 1;
|
|
|
301 |
}
|
|
|
302 |
if ((value < other && !valIsNull) || !othIsReflexive ||
|
|
|
303 |
(othIsNull && !valIsUndef && valIsReflexive) ||
|
|
|
304 |
(othIsUndef && valIsReflexive)) {
|
|
|
305 |
return -1;
|
|
|
306 |
}
|
|
|
307 |
}
|
|
|
308 |
return 0;
|
|
|
309 |
}
|
|
|
310 |
|
|
|
311 |
/**
|
|
|
312 |
* The base implementation of `_.findIndex` and `_.findLastIndex` without
|
|
|
313 |
* support for callback shorthands and `this` binding.
|
|
|
314 |
*
|
|
|
315 |
* @private
|
|
|
316 |
* @param {Array} array The array to search.
|
|
|
317 |
* @param {Function} predicate The function invoked per iteration.
|
|
|
318 |
* @param {boolean} [fromRight] Specify iterating from right to left.
|
|
|
319 |
* @returns {number} Returns the index of the matched value, else `-1`.
|
|
|
320 |
*/
|
|
|
321 |
function baseFindIndex(array, predicate, fromRight) {
|
|
|
322 |
var length = array.length,
|
|
|
323 |
index = fromRight ? length : -1;
|
|
|
324 |
|
|
|
325 |
while ((fromRight ? index-- : ++index < length)) {
|
|
|
326 |
if (predicate(array[index], index, array)) {
|
|
|
327 |
return index;
|
|
|
328 |
}
|
|
|
329 |
}
|
|
|
330 |
return -1;
|
|
|
331 |
}
|
|
|
332 |
|
|
|
333 |
/**
|
|
|
334 |
* The base implementation of `_.indexOf` without support for binary searches.
|
|
442
|
335 |
*
|
|
|
336 |
* @private
|
|
|
337 |
* @param {Array} array The array to search.
|
|
|
338 |
* @param {*} value The value to search for.
|
|
498
|
339 |
* @param {number} fromIndex The index to search from.
|
|
|
340 |
* @returns {number} Returns the index of the matched value, else `-1`.
|
|
442
|
341 |
*/
|
|
|
342 |
function baseIndexOf(array, value, fromIndex) {
|
|
498
|
343 |
if (value !== value) {
|
|
|
344 |
return indexOfNaN(array, fromIndex);
|
|
|
345 |
}
|
|
|
346 |
var index = fromIndex - 1,
|
|
|
347 |
length = array.length;
|
|
442
|
348 |
|
|
|
349 |
while (++index < length) {
|
|
|
350 |
if (array[index] === value) {
|
|
|
351 |
return index;
|
|
|
352 |
}
|
|
|
353 |
}
|
|
|
354 |
return -1;
|
|
|
355 |
}
|
|
|
356 |
|
|
|
357 |
/**
|
|
498
|
358 |
* The base implementation of `_.isFunction` without support for environments
|
|
|
359 |
* with incorrect `typeof` results.
|
|
|
360 |
*
|
|
|
361 |
* @private
|
|
|
362 |
* @param {*} value The value to check.
|
|
|
363 |
* @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
|
|
|
364 |
*/
|
|
|
365 |
function baseIsFunction(value) {
|
|
|
366 |
// Avoid a Chakra JIT bug in compatibility modes of IE 11.
|
|
|
367 |
// See https://github.com/jashkenas/underscore/issues/1621 for more details.
|
|
|
368 |
return typeof value == 'function' || false;
|
|
|
369 |
}
|
|
|
370 |
|
|
|
371 |
/**
|
|
|
372 |
* Converts `value` to a string if it's not one. An empty string is returned
|
|
|
373 |
* for `null` or `undefined` values.
|
|
442
|
374 |
*
|
|
|
375 |
* @private
|
|
498
|
376 |
* @param {*} value The value to process.
|
|
|
377 |
* @returns {string} Returns the string.
|
|
442
|
378 |
*/
|
|
498
|
379 |
function baseToString(value) {
|
|
|
380 |
return value == null ? '' : (value + '');
|
|
|
381 |
}
|
|
|
382 |
|
|
|
383 |
/**
|
|
|
384 |
* Used by `_.trim` and `_.trimLeft` to get the index of the first character
|
|
|
385 |
* of `string` that is not found in `chars`.
|
|
|
386 |
*
|
|
|
387 |
* @private
|
|
|
388 |
* @param {string} string The string to inspect.
|
|
|
389 |
* @param {string} chars The characters to find.
|
|
|
390 |
* @returns {number} Returns the index of the first character not found in `chars`.
|
|
|
391 |
*/
|
|
|
392 |
function charsLeftIndex(string, chars) {
|
|
|
393 |
var index = -1,
|
|
|
394 |
length = string.length;
|
|
|
395 |
|
|
|
396 |
while (++index < length && chars.indexOf(string.charAt(index)) > -1) {}
|
|
|
397 |
return index;
|
|
442
|
398 |
}
|
|
|
399 |
|
|
|
400 |
/**
|
|
498
|
401 |
* Used by `_.trim` and `_.trimRight` to get the index of the last character
|
|
|
402 |
* of `string` that is not found in `chars`.
|
|
|
403 |
*
|
|
|
404 |
* @private
|
|
|
405 |
* @param {string} string The string to inspect.
|
|
|
406 |
* @param {string} chars The characters to find.
|
|
|
407 |
* @returns {number} Returns the index of the last character not found in `chars`.
|
|
|
408 |
*/
|
|
|
409 |
function charsRightIndex(string, chars) {
|
|
|
410 |
var index = string.length;
|
|
|
411 |
|
|
|
412 |
while (index-- && chars.indexOf(string.charAt(index)) > -1) {}
|
|
|
413 |
return index;
|
|
|
414 |
}
|
|
|
415 |
|
|
|
416 |
/**
|
|
|
417 |
* Used by `_.sortBy` to compare transformed elements of a collection and stable
|
|
|
418 |
* sort them in ascending order.
|
|
442
|
419 |
*
|
|
|
420 |
* @private
|
|
498
|
421 |
* @param {Object} object The object to compare.
|
|
|
422 |
* @param {Object} other The other object to compare.
|
|
|
423 |
* @returns {number} Returns the sort order indicator for `object`.
|
|
|
424 |
*/
|
|
|
425 |
function compareAscending(object, other) {
|
|
|
426 |
return baseCompareAscending(object.criteria, other.criteria) || (object.index - other.index);
|
|
|
427 |
}
|
|
|
428 |
|
|
|
429 |
/**
|
|
|
430 |
* Used by `_.sortByOrder` to compare multiple properties of a value to another
|
|
|
431 |
* and stable sort them.
|
|
|
432 |
*
|
|
|
433 |
* If `orders` is unspecified, all valuess are sorted in ascending order. Otherwise,
|
|
|
434 |
* a value is sorted in ascending order if its corresponding order is "asc", and
|
|
|
435 |
* descending if "desc".
|
|
|
436 |
*
|
|
|
437 |
* @private
|
|
|
438 |
* @param {Object} object The object to compare.
|
|
|
439 |
* @param {Object} other The other object to compare.
|
|
|
440 |
* @param {boolean[]} orders The order to sort by for each property.
|
|
|
441 |
* @returns {number} Returns the sort order indicator for `object`.
|
|
442
|
442 |
*/
|
|
498
|
443 |
function compareMultiple(object, other, orders) {
|
|
|
444 |
var index = -1,
|
|
|
445 |
objCriteria = object.criteria,
|
|
|
446 |
othCriteria = other.criteria,
|
|
|
447 |
length = objCriteria.length,
|
|
|
448 |
ordersLength = orders.length;
|
|
|
449 |
|
|
|
450 |
while (++index < length) {
|
|
|
451 |
var result = baseCompareAscending(objCriteria[index], othCriteria[index]);
|
|
|
452 |
if (result) {
|
|
|
453 |
if (index >= ordersLength) {
|
|
|
454 |
return result;
|
|
|
455 |
}
|
|
|
456 |
var order = orders[index];
|
|
|
457 |
return result * ((order === 'asc' || order === true) ? 1 : -1);
|
|
|
458 |
}
|
|
|
459 |
}
|
|
|
460 |
// Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
|
|
|
461 |
// that causes it, under certain circumstances, to provide the same value for
|
|
|
462 |
// `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247
|
|
|
463 |
// for more details.
|
|
|
464 |
//
|
|
|
465 |
// This also ensures a stable sort in V8 and other engines.
|
|
|
466 |
// See https://code.google.com/p/v8/issues/detail?id=90 for more details.
|
|
|
467 |
return object.index - other.index;
|
|
442
|
468 |
}
|
|
|
469 |
|
|
|
470 |
/**
|
|
498
|
471 |
* Used by `_.deburr` to convert latin-1 supplementary letters to basic latin letters.
|
|
|
472 |
*
|
|
|
473 |
* @private
|
|
|
474 |
* @param {string} letter The matched letter to deburr.
|
|
|
475 |
* @returns {string} Returns the deburred letter.
|
|
|
476 |
*/
|
|
|
477 |
function deburrLetter(letter) {
|
|
|
478 |
return deburredLetters[letter];
|
|
|
479 |
}
|
|
|
480 |
|
|
|
481 |
/**
|
|
|
482 |
* Used by `_.escape` to convert characters to HTML entities.
|
|
442
|
483 |
*
|
|
|
484 |
* @private
|
|
498
|
485 |
* @param {string} chr The matched character to escape.
|
|
|
486 |
* @returns {string} Returns the escaped character.
|
|
|
487 |
*/
|
|
|
488 |
function escapeHtmlChar(chr) {
|
|
|
489 |
return htmlEscapes[chr];
|
|
|
490 |
}
|
|
|
491 |
|
|
|
492 |
/**
|
|
|
493 |
* Used by `_.escapeRegExp` to escape characters for inclusion in compiled regexes.
|
|
|
494 |
*
|
|
|
495 |
* @private
|
|
|
496 |
* @param {string} chr The matched character to escape.
|
|
|
497 |
* @param {string} leadingChar The capture group for a leading character.
|
|
|
498 |
* @param {string} whitespaceChar The capture group for a whitespace character.
|
|
|
499 |
* @returns {string} Returns the escaped character.
|
|
442
|
500 |
*/
|
|
498
|
501 |
function escapeRegExpChar(chr, leadingChar, whitespaceChar) {
|
|
|
502 |
if (leadingChar) {
|
|
|
503 |
chr = regexpEscapes[chr];
|
|
|
504 |
} else if (whitespaceChar) {
|
|
|
505 |
chr = stringEscapes[chr];
|
|
|
506 |
}
|
|
|
507 |
return '\\' + chr;
|
|
|
508 |
}
|
|
|
509 |
|
|
|
510 |
/**
|
|
|
511 |
* Used by `_.template` to escape characters for inclusion in compiled string literals.
|
|
|
512 |
*
|
|
|
513 |
* @private
|
|
|
514 |
* @param {string} chr The matched character to escape.
|
|
|
515 |
* @returns {string} Returns the escaped character.
|
|
|
516 |
*/
|
|
|
517 |
function escapeStringChar(chr) {
|
|
|
518 |
return '\\' + stringEscapes[chr];
|
|
442
|
519 |
}
|
|
|
520 |
|
|
|
521 |
/**
|
|
498
|
522 |
* Gets the index at which the first occurrence of `NaN` is found in `array`.
|
|
442
|
523 |
*
|
|
|
524 |
* @private
|
|
498
|
525 |
* @param {Array} array The array to search.
|
|
|
526 |
* @param {number} fromIndex The index to search from.
|
|
|
527 |
* @param {boolean} [fromRight] Specify iterating from right to left.
|
|
|
528 |
* @returns {number} Returns the index of the matched `NaN`, else `-1`.
|
|
442
|
529 |
*/
|
|
498
|
530 |
function indexOfNaN(array, fromIndex, fromRight) {
|
|
|
531 |
var length = array.length,
|
|
|
532 |
index = fromIndex + (fromRight ? 0 : -1);
|
|
|
533 |
|
|
|
534 |
while ((fromRight ? index-- : ++index < length)) {
|
|
|
535 |
var other = array[index];
|
|
|
536 |
if (other !== other) {
|
|
|
537 |
return index;
|
|
|
538 |
}
|
|
|
539 |
}
|
|
|
540 |
return -1;
|
|
|
541 |
}
|
|
|
542 |
|
|
|
543 |
/**
|
|
|
544 |
* Checks if `value` is object-like.
|
|
|
545 |
*
|
|
|
546 |
* @private
|
|
|
547 |
* @param {*} value The value to check.
|
|
|
548 |
* @returns {boolean} Returns `true` if `value` is object-like, else `false`.
|
|
|
549 |
*/
|
|
|
550 |
function isObjectLike(value) {
|
|
|
551 |
return !!value && typeof value == 'object';
|
|
442
|
552 |
}
|
|
|
553 |
|
|
|
554 |
/**
|
|
498
|
555 |
* Used by `trimmedLeftIndex` and `trimmedRightIndex` to determine if a
|
|
|
556 |
* character code is whitespace.
|
|
442
|
557 |
*
|
|
|
558 |
* @private
|
|
498
|
559 |
* @param {number} charCode The character code to inspect.
|
|
|
560 |
* @returns {boolean} Returns `true` if `charCode` is whitespace, else `false`.
|
|
442
|
561 |
*/
|
|
498
|
562 |
function isSpace(charCode) {
|
|
|
563 |
return ((charCode <= 160 && (charCode >= 9 && charCode <= 13) || charCode == 32 || charCode == 160) || charCode == 5760 || charCode == 6158 ||
|
|
|
564 |
(charCode >= 8192 && (charCode <= 8202 || charCode == 8232 || charCode == 8233 || charCode == 8239 || charCode == 8287 || charCode == 12288 || charCode == 65279)));
|
|
|
565 |
}
|
|
|
566 |
|
|
|
567 |
/**
|
|
|
568 |
* Replaces all `placeholder` elements in `array` with an internal placeholder
|
|
|
569 |
* and returns an array of their indexes.
|
|
|
570 |
*
|
|
|
571 |
* @private
|
|
|
572 |
* @param {Array} array The array to modify.
|
|
|
573 |
* @param {*} placeholder The placeholder to replace.
|
|
|
574 |
* @returns {Array} Returns the new array of placeholder indexes.
|
|
|
575 |
*/
|
|
|
576 |
function replaceHolders(array, placeholder) {
|
|
442
|
577 |
var index = -1,
|
|
|
578 |
length = array.length,
|
|
498
|
579 |
resIndex = -1,
|
|
|
580 |
result = [];
|
|
442
|
581 |
|
|
|
582 |
while (++index < length) {
|
|
498
|
583 |
if (array[index] === placeholder) {
|
|
|
584 |
array[index] = PLACEHOLDER;
|
|
|
585 |
result[++resIndex] = index;
|
|
|
586 |
}
|
|
442
|
587 |
}
|
|
|
588 |
return result;
|
|
|
589 |
}
|
|
|
590 |
|
|
|
591 |
/**
|
|
498
|
592 |
* An implementation of `_.uniq` optimized for sorted arrays without support
|
|
|
593 |
* for callback shorthands and `this` binding.
|
|
442
|
594 |
*
|
|
|
595 |
* @private
|
|
498
|
596 |
* @param {Array} array The array to inspect.
|
|
|
597 |
* @param {Function} [iteratee] The function invoked per iteration.
|
|
|
598 |
* @returns {Array} Returns the new duplicate free array.
|
|
442
|
599 |
*/
|
|
498
|
600 |
function sortedUniq(array, iteratee) {
|
|
|
601 |
var seen,
|
|
|
602 |
index = -1,
|
|
|
603 |
length = array.length,
|
|
|
604 |
resIndex = -1,
|
|
|
605 |
result = [];
|
|
|
606 |
|
|
|
607 |
while (++index < length) {
|
|
|
608 |
var value = array[index],
|
|
|
609 |
computed = iteratee ? iteratee(value, index, array) : value;
|
|
|
610 |
|
|
|
611 |
if (!index || seen !== computed) {
|
|
|
612 |
seen = computed;
|
|
|
613 |
result[++resIndex] = value;
|
|
|
614 |
}
|
|
|
615 |
}
|
|
|
616 |
return result;
|
|
442
|
617 |
}
|
|
|
618 |
|
|
|
619 |
/**
|
|
498
|
620 |
* Used by `_.trim` and `_.trimLeft` to get the index of the first non-whitespace
|
|
|
621 |
* character of `string`.
|
|
442
|
622 |
*
|
|
|
623 |
* @private
|
|
498
|
624 |
* @param {string} string The string to inspect.
|
|
|
625 |
* @returns {number} Returns the index of the first non-whitespace character.
|
|
442
|
626 |
*/
|
|
498
|
627 |
function trimmedLeftIndex(string) {
|
|
|
628 |
var index = -1,
|
|
|
629 |
length = string.length;
|
|
|
630 |
|
|
|
631 |
while (++index < length && isSpace(string.charCodeAt(index))) {}
|
|
|
632 |
return index;
|
|
442
|
633 |
}
|
|
|
634 |
|
|
|
635 |
/**
|
|
498
|
636 |
* Used by `_.trim` and `_.trimRight` to get the index of the last non-whitespace
|
|
|
637 |
* character of `string`.
|
|
442
|
638 |
*
|
|
|
639 |
* @private
|
|
498
|
640 |
* @param {string} string The string to inspect.
|
|
|
641 |
* @returns {number} Returns the index of the last non-whitespace character.
|
|
442
|
642 |
*/
|
|
498
|
643 |
function trimmedRightIndex(string) {
|
|
|
644 |
var index = string.length;
|
|
|
645 |
|
|
|
646 |
while (index-- && isSpace(string.charCodeAt(index))) {}
|
|
|
647 |
return index;
|
|
442
|
648 |
}
|
|
|
649 |
|
|
|
650 |
/**
|
|
498
|
651 |
* Used by `_.unescape` to convert HTML entities to characters.
|
|
442
|
652 |
*
|
|
|
653 |
* @private
|
|
498
|
654 |
* @param {string} chr The matched character to unescape.
|
|
|
655 |
* @returns {string} Returns the unescaped character.
|
|
442
|
656 |
*/
|
|
498
|
657 |
function unescapeHtmlChar(chr) {
|
|
|
658 |
return htmlUnescapes[chr];
|
|
442
|
659 |
}
|
|
|
660 |
|
|
|
661 |
/*--------------------------------------------------------------------------*/
|
|
|
662 |
|
|
|
663 |
/**
|
|
498
|
664 |
* Create a new pristine `lodash` function using the given `context` object.
|
|
442
|
665 |
*
|
|
|
666 |
* @static
|
|
|
667 |
* @memberOf _
|
|
498
|
668 |
* @category Utility
|
|
442
|
669 |
* @param {Object} [context=root] The context object.
|
|
498
|
670 |
* @returns {Function} Returns a new `lodash` function.
|
|
|
671 |
* @example
|
|
|
672 |
*
|
|
|
673 |
* _.mixin({ 'foo': _.constant('foo') });
|
|
|
674 |
*
|
|
|
675 |
* var lodash = _.runInContext();
|
|
|
676 |
* lodash.mixin({ 'bar': lodash.constant('bar') });
|
|
|
677 |
*
|
|
|
678 |
* _.isFunction(_.foo);
|
|
|
679 |
* // => true
|
|
|
680 |
* _.isFunction(_.bar);
|
|
|
681 |
* // => false
|
|
|
682 |
*
|
|
|
683 |
* lodash.isFunction(lodash.foo);
|
|
|
684 |
* // => false
|
|
|
685 |
* lodash.isFunction(lodash.bar);
|
|
|
686 |
* // => true
|
|
|
687 |
*
|
|
|
688 |
* // using `context` to mock `Date#getTime` use in `_.now`
|
|
|
689 |
* var mock = _.runInContext({
|
|
|
690 |
* 'Date': function() {
|
|
|
691 |
* return { 'getTime': getTimeMock };
|
|
|
692 |
* }
|
|
|
693 |
* });
|
|
|
694 |
*
|
|
|
695 |
* // or creating a suped-up `defer` in Node.js
|
|
|
696 |
* var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;
|
|
442
|
697 |
*/
|
|
|
698 |
function runInContext(context) {
|
|
|
699 |
// Avoid issues with some ES3 environments that attempt to use values, named
|
|
|
700 |
// after built-in constructors like `Object`, for the creation of literals.
|
|
|
701 |
// ES5 clears this up by stating that literals must use built-in constructors.
|
|
498
|
702 |
// See https://es5.github.io/#x11.1.5 for more details.
|
|
442
|
703 |
context = context ? _.defaults(root.Object(), context, _.pick(root, contextProps)) : root;
|
|
|
704 |
|
|
498
|
705 |
/** Native constructor references. */
|
|
442
|
706 |
var Array = context.Array,
|
|
|
707 |
Date = context.Date,
|
|
498
|
708 |
Error = context.Error,
|
|
442
|
709 |
Function = context.Function,
|
|
|
710 |
Math = context.Math,
|
|
|
711 |
Number = context.Number,
|
|
|
712 |
Object = context.Object,
|
|
|
713 |
RegExp = context.RegExp,
|
|
|
714 |
String = context.String,
|
|
|
715 |
TypeError = context.TypeError;
|
|
|
716 |
|
|
498
|
717 |
/** Used for native method references. */
|
|
|
718 |
var arrayProto = Array.prototype,
|
|
|
719 |
objectProto = Object.prototype,
|
|
|
720 |
stringProto = String.prototype;
|
|
|
721 |
|
|
|
722 |
/** Used to resolve the decompiled source of functions. */
|
|
|
723 |
var fnToString = Function.prototype.toString;
|
|
|
724 |
|
|
|
725 |
/** Used to check objects for own properties. */
|
|
|
726 |
var hasOwnProperty = objectProto.hasOwnProperty;
|
|
|
727 |
|
|
|
728 |
/** Used to generate unique IDs. */
|
|
|
729 |
var idCounter = 0;
|
|
|
730 |
|
|
|
731 |
/**
|
|
|
732 |
* Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
|
|
|
733 |
* of values.
|
|
|
734 |
*/
|
|
|
735 |
var objToString = objectProto.toString;
|
|
|
736 |
|
|
|
737 |
/** Used to restore the original `_` reference in `_.noConflict`. */
|
|
|
738 |
var oldDash = root._;
|
|
|
739 |
|
|
|
740 |
/** Used to detect if a method is native. */
|
|
|
741 |
var reIsNative = RegExp('^' +
|
|
|
742 |
fnToString.call(hasOwnProperty).replace(/[\\^$.*+?()[\]{}|]/g, '\\$&')
|
|
|
743 |
.replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
|
|
442
|
744 |
);
|
|
|
745 |
|
|
498
|
746 |
/** Native method references. */
|
|
|
747 |
var ArrayBuffer = context.ArrayBuffer,
|
|
442
|
748 |
clearTimeout = context.clearTimeout,
|
|
498
|
749 |
parseFloat = context.parseFloat,
|
|
|
750 |
pow = Math.pow,
|
|
|
751 |
propertyIsEnumerable = objectProto.propertyIsEnumerable,
|
|
|
752 |
Set = getNative(context, 'Set'),
|
|
442
|
753 |
setTimeout = context.setTimeout,
|
|
498
|
754 |
splice = arrayProto.splice,
|
|
|
755 |
Uint8Array = context.Uint8Array,
|
|
|
756 |
WeakMap = getNative(context, 'WeakMap');
|
|
|
757 |
|
|
|
758 |
/* Native method references for those with the same name as other `lodash` methods. */
|
|
|
759 |
var nativeCeil = Math.ceil,
|
|
|
760 |
nativeCreate = getNative(Object, 'create'),
|
|
|
761 |
nativeFloor = Math.floor,
|
|
|
762 |
nativeIsArray = getNative(Array, 'isArray'),
|
|
442
|
763 |
nativeIsFinite = context.isFinite,
|
|
498
|
764 |
nativeKeys = getNative(Object, 'keys'),
|
|
442
|
765 |
nativeMax = Math.max,
|
|
|
766 |
nativeMin = Math.min,
|
|
498
|
767 |
nativeNow = getNative(Date, 'now'),
|
|
442
|
768 |
nativeParseInt = context.parseInt,
|
|
|
769 |
nativeRandom = Math.random;
|
|
|
770 |
|
|
498
|
771 |
/** Used as references for `-Infinity` and `Infinity`. */
|
|
|
772 |
var NEGATIVE_INFINITY = Number.NEGATIVE_INFINITY,
|
|
|
773 |
POSITIVE_INFINITY = Number.POSITIVE_INFINITY;
|
|
|
774 |
|
|
|
775 |
/** Used as references for the maximum length and index of an array. */
|
|
|
776 |
var MAX_ARRAY_LENGTH = 4294967295,
|
|
|
777 |
MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,
|
|
|
778 |
HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;
|
|
|
779 |
|
|
|
780 |
/**
|
|
|
781 |
* Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)
|
|
|
782 |
* of an array-like value.
|
|
|
783 |
*/
|
|
|
784 |
var MAX_SAFE_INTEGER = 9007199254740991;
|
|
|
785 |
|
|
|
786 |
/** Used to store function metadata. */
|
|
|
787 |
var metaMap = WeakMap && new WeakMap;
|
|
|
788 |
|
|
|
789 |
/** Used to lookup unminified function names. */
|
|
|
790 |
var realNames = {};
|
|
|
791 |
|
|
|
792 |
/*------------------------------------------------------------------------*/
|
|
|
793 |
|
|
|
794 |
/**
|
|
|
795 |
* Creates a `lodash` object which wraps `value` to enable implicit chaining.
|
|
|
796 |
* Methods that operate on and return arrays, collections, and functions can
|
|
|
797 |
* be chained together. Methods that retrieve a single value or may return a
|
|
|
798 |
* primitive value will automatically end the chain returning the unwrapped
|
|
|
799 |
* value. Explicit chaining may be enabled using `_.chain`. The execution of
|
|
|
800 |
* chained methods is lazy, that is, execution is deferred until `_#value`
|
|
|
801 |
* is implicitly or explicitly called.
|
|
|
802 |
*
|
|
|
803 |
* Lazy evaluation allows several methods to support shortcut fusion. Shortcut
|
|
|
804 |
* fusion is an optimization strategy which merge iteratee calls; this can help
|
|
|
805 |
* to avoid the creation of intermediate data structures and greatly reduce the
|
|
|
806 |
* number of iteratee executions.
|
|
|
807 |
*
|
|
|
808 |
* Chaining is supported in custom builds as long as the `_#value` method is
|
|
|
809 |
* directly or indirectly included in the build.
|
|
|
810 |
*
|
|
|
811 |
* In addition to lodash methods, wrappers have `Array` and `String` methods.
|
|
|
812 |
*
|
|
|
813 |
* The wrapper `Array` methods are:
|
|
|
814 |
* `concat`, `join`, `pop`, `push`, `reverse`, `shift`, `slice`, `sort`,
|
|
|
815 |
* `splice`, and `unshift`
|
|
|
816 |
*
|
|
|
817 |
* The wrapper `String` methods are:
|
|
|
818 |
* `replace` and `split`
|
|
|
819 |
*
|
|
|
820 |
* The wrapper methods that support shortcut fusion are:
|
|
|
821 |
* `compact`, `drop`, `dropRight`, `dropRightWhile`, `dropWhile`, `filter`,
|
|
|
822 |
* `first`, `initial`, `last`, `map`, `pluck`, `reject`, `rest`, `reverse`,
|
|
|
823 |
* `slice`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, `toArray`,
|
|
|
824 |
* and `where`
|
|
|
825 |
*
|
|
|
826 |
* The chainable wrapper methods are:
|
|
|
827 |
* `after`, `ary`, `assign`, `at`, `before`, `bind`, `bindAll`, `bindKey`,
|
|
|
828 |
* `callback`, `chain`, `chunk`, `commit`, `compact`, `concat`, `constant`,
|
|
|
829 |
* `countBy`, `create`, `curry`, `debounce`, `defaults`, `defaultsDeep`,
|
|
|
830 |
* `defer`, `delay`, `difference`, `drop`, `dropRight`, `dropRightWhile`,
|
|
|
831 |
* `dropWhile`, `fill`, `filter`, `flatten`, `flattenDeep`, `flow`, `flowRight`,
|
|
442
|
832 |
* `forEach`, `forEachRight`, `forIn`, `forInRight`, `forOwn`, `forOwnRight`,
|
|
|
833 |
* `functions`, `groupBy`, `indexBy`, `initial`, `intersection`, `invert`,
|
|
498
|
834 |
* `invoke`, `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`,
|
|
|
835 |
* `matchesProperty`, `memoize`, `merge`, `method`, `methodOf`, `mixin`,
|
|
|
836 |
* `modArgs`, `negate`, `omit`, `once`, `pairs`, `partial`, `partialRight`,
|
|
|
837 |
* `partition`, `pick`, `plant`, `pluck`, `property`, `propertyOf`, `pull`,
|
|
|
838 |
* `pullAt`, `push`, `range`, `rearg`, `reject`, `remove`, `rest`, `restParam`,
|
|
|
839 |
* `reverse`, `set`, `shuffle`, `slice`, `sort`, `sortBy`, `sortByAll`,
|
|
|
840 |
* `sortByOrder`, `splice`, `spread`, `take`, `takeRight`, `takeRightWhile`,
|
|
|
841 |
* `takeWhile`, `tap`, `throttle`, `thru`, `times`, `toArray`, `toPlainObject`,
|
|
|
842 |
* `transform`, `union`, `uniq`, `unshift`, `unzip`, `unzipWith`, `values`,
|
|
|
843 |
* `valuesIn`, `where`, `without`, `wrap`, `xor`, `zip`, `zipObject`, `zipWith`
|
|
|
844 |
*
|
|
|
845 |
* The wrapper methods that are **not** chainable by default are:
|
|
|
846 |
* `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clone`, `cloneDeep`,
|
|
|
847 |
* `deburr`, `endsWith`, `escape`, `escapeRegExp`, `every`, `find`, `findIndex`,
|
|
|
848 |
* `findKey`, `findLast`, `findLastIndex`, `findLastKey`, `findWhere`, `first`,
|
|
|
849 |
* `floor`, `get`, `gt`, `gte`, `has`, `identity`, `includes`, `indexOf`,
|
|
|
850 |
* `inRange`, `isArguments`, `isArray`, `isBoolean`, `isDate`, `isElement`,
|
|
|
851 |
* `isEmpty`, `isEqual`, `isError`, `isFinite` `isFunction`, `isMatch`,
|
|
|
852 |
* `isNative`, `isNaN`, `isNull`, `isNumber`, `isObject`, `isPlainObject`,
|
|
|
853 |
* `isRegExp`, `isString`, `isUndefined`, `isTypedArray`, `join`, `kebabCase`,
|
|
|
854 |
* `last`, `lastIndexOf`, `lt`, `lte`, `max`, `min`, `noConflict`, `noop`,
|
|
|
855 |
* `now`, `pad`, `padLeft`, `padRight`, `parseInt`, `pop`, `random`, `reduce`,
|
|
|
856 |
* `reduceRight`, `repeat`, `result`, `round`, `runInContext`, `shift`, `size`,
|
|
|
857 |
* `snakeCase`, `some`, `sortedIndex`, `sortedLastIndex`, `startCase`,
|
|
|
858 |
* `startsWith`, `sum`, `template`, `trim`, `trimLeft`, `trimRight`, `trunc`,
|
|
|
859 |
* `unescape`, `uniqueId`, `value`, and `words`
|
|
|
860 |
*
|
|
|
861 |
* The wrapper method `sample` will return a wrapped value when `n` is provided,
|
|
|
862 |
* otherwise an unwrapped value is returned.
|
|
442
|
863 |
*
|
|
|
864 |
* @name _
|
|
|
865 |
* @constructor
|
|
498
|
866 |
* @category Chain
|
|
442
|
867 |
* @param {*} value The value to wrap in a `lodash` instance.
|
|
498
|
868 |
* @returns {Object} Returns the new `lodash` wrapper instance.
|
|
442
|
869 |
* @example
|
|
|
870 |
*
|
|
|
871 |
* var wrapped = _([1, 2, 3]);
|
|
|
872 |
*
|
|
|
873 |
* // returns an unwrapped value
|
|
498
|
874 |
* wrapped.reduce(function(total, n) {
|
|
|
875 |
* return total + n;
|
|
442
|
876 |
* });
|
|
|
877 |
* // => 6
|
|
|
878 |
*
|
|
|
879 |
* // returns a wrapped value
|
|
498
|
880 |
* var squares = wrapped.map(function(n) {
|
|
|
881 |
* return n * n;
|
|
442
|
882 |
* });
|
|
|
883 |
*
|
|
|
884 |
* _.isArray(squares);
|
|
|
885 |
* // => false
|
|
|
886 |
*
|
|
|
887 |
* _.isArray(squares.value());
|
|
|
888 |
* // => true
|
|
|
889 |
*/
|
|
|
890 |
function lodash(value) {
|
|
498
|
891 |
if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {
|
|
|
892 |
if (value instanceof LodashWrapper) {
|
|
|
893 |
return value;
|
|
|
894 |
}
|
|
|
895 |
if (hasOwnProperty.call(value, '__chain__') && hasOwnProperty.call(value, '__wrapped__')) {
|
|
|
896 |
return wrapperClone(value);
|
|
|
897 |
}
|
|
|
898 |
}
|
|
|
899 |
return new LodashWrapper(value);
|
|
|
900 |
}
|
|
|
901 |
|
|
|
902 |
/**
|
|
|
903 |
* The function whose prototype all chaining wrappers inherit from.
|
|
|
904 |
*
|
|
|
905 |
* @private
|
|
|
906 |
*/
|
|
|
907 |
function baseLodash() {
|
|
|
908 |
// No operation performed.
|
|
|
909 |
}
|
|
|
910 |
|
|
|
911 |
/**
|
|
|
912 |
* The base constructor for creating `lodash` wrapper objects.
|
|
|
913 |
*
|
|
|
914 |
* @private
|
|
|
915 |
* @param {*} value The value to wrap.
|
|
|
916 |
* @param {boolean} [chainAll] Enable chaining for all wrapper methods.
|
|
|
917 |
* @param {Array} [actions=[]] Actions to peform to resolve the unwrapped value.
|
|
|
918 |
*/
|
|
|
919 |
function LodashWrapper(value, chainAll, actions) {
|
|
|
920 |
this.__wrapped__ = value;
|
|
|
921 |
this.__actions__ = actions || [];
|
|
442
|
922 |
this.__chain__ = !!chainAll;
|
|
498
|
923 |
}
|
|
|
924 |
|
|
|
925 |
/**
|
|
|
926 |
* An object environment feature flags.
|
|
442
|
927 |
*
|
|
|
928 |
* @static
|
|
|
929 |
* @memberOf _
|
|
|
930 |
* @type Object
|
|
|
931 |
*/
|
|
|
932 |
var support = lodash.support = {};
|
|
|
933 |
|
|
|
934 |
/**
|
|
498
|
935 |
* By default, the template delimiters used by lodash are like those in
|
|
|
936 |
* embedded Ruby (ERB). Change the following template settings to use
|
|
|
937 |
* alternative delimiters.
|
|
442
|
938 |
*
|
|
|
939 |
* @static
|
|
|
940 |
* @memberOf _
|
|
|
941 |
* @type Object
|
|
|
942 |
*/
|
|
|
943 |
lodash.templateSettings = {
|
|
|
944 |
|
|
|
945 |
/**
|
|
|
946 |
* Used to detect `data` property values to be HTML-escaped.
|
|
|
947 |
*
|
|
|
948 |
* @memberOf _.templateSettings
|
|
|
949 |
* @type RegExp
|
|
|
950 |
*/
|
|
498
|
951 |
'escape': reEscape,
|
|
442
|
952 |
|
|
|
953 |
/**
|
|
|
954 |
* Used to detect code to be evaluated.
|
|
|
955 |
*
|
|
|
956 |
* @memberOf _.templateSettings
|
|
|
957 |
* @type RegExp
|
|
|
958 |
*/
|
|
498
|
959 |
'evaluate': reEvaluate,
|
|
442
|
960 |
|
|
|
961 |
/**
|
|
|
962 |
* Used to detect `data` property values to inject.
|
|
|
963 |
*
|
|
|
964 |
* @memberOf _.templateSettings
|
|
|
965 |
* @type RegExp
|
|
|
966 |
*/
|
|
|
967 |
'interpolate': reInterpolate,
|
|
|
968 |
|
|
|
969 |
/**
|
|
|
970 |
* Used to reference the data object in the template text.
|
|
|
971 |
*
|
|
|
972 |
* @memberOf _.templateSettings
|
|
|
973 |
* @type string
|
|
|
974 |
*/
|
|
|
975 |
'variable': '',
|
|
|
976 |
|
|
|
977 |
/**
|
|
|
978 |
* Used to import variables into the compiled template.
|
|
|
979 |
*
|
|
|
980 |
* @memberOf _.templateSettings
|
|
|
981 |
* @type Object
|
|
|
982 |
*/
|
|
|
983 |
'imports': {
|
|
|
984 |
|
|
|
985 |
/**
|
|
|
986 |
* A reference to the `lodash` function.
|
|
|
987 |
*
|
|
|
988 |
* @memberOf _.templateSettings.imports
|
|
|
989 |
* @type Function
|
|
|
990 |
*/
|
|
|
991 |
'_': lodash
|
|
|
992 |
}
|
|
|
993 |
};
|
|
|
994 |
|
|
498
|
995 |
/*------------------------------------------------------------------------*/
|
|
|
996 |
|
|
|
997 |
/**
|
|
|
998 |
* Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.
|
|
|
999 |
*
|
|
|
1000 |
* @private
|
|
|
1001 |
* @param {*} value The value to wrap.
|
|
|
1002 |
*/
|
|
|
1003 |
function LazyWrapper(value) {
|
|
|
1004 |
this.__wrapped__ = value;
|
|
|
1005 |
this.__actions__ = [];
|
|
|
1006 |
this.__dir__ = 1;
|
|
|
1007 |
this.__filtered__ = false;
|
|
|
1008 |
this.__iteratees__ = [];
|
|
|
1009 |
this.__takeCount__ = POSITIVE_INFINITY;
|
|
|
1010 |
this.__views__ = [];
|
|
|
1011 |
}
|
|
|
1012 |
|
|
|
1013 |
/**
|
|
|
1014 |
* Creates a clone of the lazy wrapper object.
|
|
|
1015 |
*
|
|
|
1016 |
* @private
|
|
|
1017 |
* @name clone
|
|
|
1018 |
* @memberOf LazyWrapper
|
|
|
1019 |
* @returns {Object} Returns the cloned `LazyWrapper` object.
|
|
|
1020 |
*/
|
|
|
1021 |
function lazyClone() {
|
|
|
1022 |
var result = new LazyWrapper(this.__wrapped__);
|
|
|
1023 |
result.__actions__ = arrayCopy(this.__actions__);
|
|
|
1024 |
result.__dir__ = this.__dir__;
|
|
|
1025 |
result.__filtered__ = this.__filtered__;
|
|
|
1026 |
result.__iteratees__ = arrayCopy(this.__iteratees__);
|
|
|
1027 |
result.__takeCount__ = this.__takeCount__;
|
|
|
1028 |
result.__views__ = arrayCopy(this.__views__);
|
|
|
1029 |
return result;
|
|
|
1030 |
}
|
|
|
1031 |
|
|
|
1032 |
/**
|
|
|
1033 |
* Reverses the direction of lazy iteration.
|
|
|
1034 |
*
|
|
|
1035 |
* @private
|
|
|
1036 |
* @name reverse
|
|
|
1037 |
* @memberOf LazyWrapper
|
|
|
1038 |
* @returns {Object} Returns the new reversed `LazyWrapper` object.
|
|
|
1039 |
*/
|
|
|
1040 |
function lazyReverse() {
|
|
|
1041 |
if (this.__filtered__) {
|
|
|
1042 |
var result = new LazyWrapper(this);
|
|
|
1043 |
result.__dir__ = -1;
|
|
|
1044 |
result.__filtered__ = true;
|
|
|
1045 |
} else {
|
|
|
1046 |
result = this.clone();
|
|
|
1047 |
result.__dir__ *= -1;
|
|
|
1048 |
}
|
|
|
1049 |
return result;
|
|
|
1050 |
}
|
|
|
1051 |
|
|
|
1052 |
/**
|
|
|
1053 |
* Extracts the unwrapped value from its lazy wrapper.
|
|
|
1054 |
*
|
|
|
1055 |
* @private
|
|
|
1056 |
* @name value
|
|
|
1057 |
* @memberOf LazyWrapper
|
|
|
1058 |
* @returns {*} Returns the unwrapped value.
|
|
|
1059 |
*/
|
|
|
1060 |
function lazyValue() {
|
|
|
1061 |
var array = this.__wrapped__.value(),
|
|
|
1062 |
dir = this.__dir__,
|
|
|
1063 |
isArr = isArray(array),
|
|
|
1064 |
isRight = dir < 0,
|
|
|
1065 |
arrLength = isArr ? array.length : 0,
|
|
|
1066 |
view = getView(0, arrLength, this.__views__),
|
|
|
1067 |
start = view.start,
|
|
|
1068 |
end = view.end,
|
|
|
1069 |
length = end - start,
|
|
|
1070 |
index = isRight ? end : (start - 1),
|
|
|
1071 |
iteratees = this.__iteratees__,
|
|
|
1072 |
iterLength = iteratees.length,
|
|
|
1073 |
resIndex = 0,
|
|
|
1074 |
takeCount = nativeMin(length, this.__takeCount__);
|
|
|
1075 |
|
|
|
1076 |
if (!isArr || arrLength < LARGE_ARRAY_SIZE || (arrLength == length && takeCount == length)) {
|
|
|
1077 |
return baseWrapperValue(array, this.__actions__);
|
|
|
1078 |
}
|
|
|
1079 |
var result = [];
|
|
|
1080 |
|
|
|
1081 |
outer:
|
|
|
1082 |
while (length-- && resIndex < takeCount) {
|
|
|
1083 |
index += dir;
|
|
|
1084 |
|
|
|
1085 |
var iterIndex = -1,
|
|
|
1086 |
value = array[index];
|
|
|
1087 |
|
|
|
1088 |
while (++iterIndex < iterLength) {
|
|
|
1089 |
var data = iteratees[iterIndex],
|
|
|
1090 |
iteratee = data.iteratee,
|
|
|
1091 |
type = data.type,
|
|
|
1092 |
computed = iteratee(value);
|
|
|
1093 |
|
|
|
1094 |
if (type == LAZY_MAP_FLAG) {
|
|
|
1095 |
value = computed;
|
|
|
1096 |
} else if (!computed) {
|
|
|
1097 |
if (type == LAZY_FILTER_FLAG) {
|
|
|
1098 |
continue outer;
|
|
|
1099 |
} else {
|
|
|
1100 |
break outer;
|
|
|
1101 |
}
|
|
|
1102 |
}
|
|
|
1103 |
}
|
|
|
1104 |
result[resIndex++] = value;
|
|
|
1105 |
}
|
|
|
1106 |
return result;
|
|
|
1107 |
}
|
|
|
1108 |
|
|
|
1109 |
/*------------------------------------------------------------------------*/
|
|
|
1110 |
|
|
|
1111 |
/**
|
|
|
1112 |
* Creates a cache object to store key/value pairs.
|
|
|
1113 |
*
|
|
|
1114 |
* @private
|
|
|
1115 |
* @static
|
|
|
1116 |
* @name Cache
|
|
|
1117 |
* @memberOf _.memoize
|
|
|
1118 |
*/
|
|
|
1119 |
function MapCache() {
|
|
|
1120 |
this.__data__ = {};
|
|
|
1121 |
}
|
|
|
1122 |
|
|
|
1123 |
/**
|
|
|
1124 |
* Removes `key` and its value from the cache.
|
|
|
1125 |
*
|
|
|
1126 |
* @private
|
|
|
1127 |
* @name delete
|
|
|
1128 |
* @memberOf _.memoize.Cache
|
|
|
1129 |
* @param {string} key The key of the value to remove.
|
|
|
1130 |
* @returns {boolean} Returns `true` if the entry was removed successfully, else `false`.
|
|
|
1131 |
*/
|
|
|
1132 |
function mapDelete(key) {
|
|
|
1133 |
return this.has(key) && delete this.__data__[key];
|
|
|
1134 |
}
|
|
|
1135 |
|
|
|
1136 |
/**
|
|
|
1137 |
* Gets the cached value for `key`.
|
|
|
1138 |
*
|
|
|
1139 |
* @private
|
|
|
1140 |
* @name get
|
|
|
1141 |
* @memberOf _.memoize.Cache
|
|
|
1142 |
* @param {string} key The key of the value to get.
|
|
|
1143 |
* @returns {*} Returns the cached value.
|
|
|
1144 |
*/
|
|
|
1145 |
function mapGet(key) {
|
|
|
1146 |
return key == '__proto__' ? undefined : this.__data__[key];
|
|
|
1147 |
}
|
|
|
1148 |
|
|
|
1149 |
/**
|
|
|
1150 |
* Checks if a cached value for `key` exists.
|
|
|
1151 |
*
|
|
|
1152 |
* @private
|
|
|
1153 |
* @name has
|
|
|
1154 |
* @memberOf _.memoize.Cache
|
|
|
1155 |
* @param {string} key The key of the entry to check.
|
|
|
1156 |
* @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
|
|
|
1157 |
*/
|
|
|
1158 |
function mapHas(key) {
|
|
|
1159 |
return key != '__proto__' && hasOwnProperty.call(this.__data__, key);
|
|
|
1160 |
}
|
|
|
1161 |
|
|
|
1162 |
/**
|
|
|
1163 |
* Sets `value` to `key` of the cache.
|
|
|
1164 |
*
|
|
|
1165 |
* @private
|
|
|
1166 |
* @name set
|
|
|
1167 |
* @memberOf _.memoize.Cache
|
|
|
1168 |
* @param {string} key The key of the value to cache.
|
|
|
1169 |
* @param {*} value The value to cache.
|
|
|
1170 |
* @returns {Object} Returns the cache object.
|
|
|
1171 |
*/
|
|
|
1172 |
function mapSet(key, value) {
|
|
|
1173 |
if (key != '__proto__') {
|
|
|
1174 |
this.__data__[key] = value;
|
|
|
1175 |
}
|
|
|
1176 |
return this;
|
|
|
1177 |
}
|
|
|
1178 |
|
|
|
1179 |
/*------------------------------------------------------------------------*/
|
|
|
1180 |
|
|
|
1181 |
/**
|
|
|
1182 |
*
|
|
|
1183 |
* Creates a cache object to store unique values.
|
|
|
1184 |
*
|
|
|
1185 |
* @private
|
|
|
1186 |
* @param {Array} [values] The values to cache.
|
|
|
1187 |
*/
|
|
|
1188 |
function SetCache(values) {
|
|
|
1189 |
var length = values ? values.length : 0;
|
|
|
1190 |
|
|
|
1191 |
this.data = { 'hash': nativeCreate(null), 'set': new Set };
|
|
|
1192 |
while (length--) {
|
|
|
1193 |
this.push(values[length]);
|
|
|
1194 |
}
|
|
|
1195 |
}
|
|
|
1196 |
|
|
|
1197 |
/**
|
|
|
1198 |
* Checks if `value` is in `cache` mimicking the return signature of
|
|
|
1199 |
* `_.indexOf` by returning `0` if the value is found, else `-1`.
|
|
|
1200 |
*
|
|
|
1201 |
* @private
|
|
|
1202 |
* @param {Object} cache The cache to search.
|
|
|
1203 |
* @param {*} value The value to search for.
|
|
|
1204 |
* @returns {number} Returns `0` if `value` is found, else `-1`.
|
|
|
1205 |
*/
|
|
|
1206 |
function cacheIndexOf(cache, value) {
|
|
|
1207 |
var data = cache.data,
|
|
|
1208 |
result = (typeof value == 'string' || isObject(value)) ? data.set.has(value) : data.hash[value];
|
|
|
1209 |
|
|
|
1210 |
return result ? 0 : -1;
|
|
|
1211 |
}
|
|
|
1212 |
|
|
|
1213 |
/**
|
|
|
1214 |
* Adds `value` to the cache.
|
|
|
1215 |
*
|
|
|
1216 |
* @private
|
|
|
1217 |
* @name push
|
|
|
1218 |
* @memberOf SetCache
|
|
|
1219 |
* @param {*} value The value to cache.
|
|
|
1220 |
*/
|
|
|
1221 |
function cachePush(value) {
|
|
|
1222 |
var data = this.data;
|
|
|
1223 |
if (typeof value == 'string' || isObject(value)) {
|
|
|
1224 |
data.set.add(value);
|
|
|
1225 |
} else {
|
|
|
1226 |
data.hash[value] = true;
|
|
|
1227 |
}
|
|
|
1228 |
}
|
|
|
1229 |
|
|
|
1230 |
/*------------------------------------------------------------------------*/
|
|
|
1231 |
|
|
|
1232 |
/**
|
|
|
1233 |
* Creates a new array joining `array` with `other`.
|
|
|
1234 |
*
|
|
|
1235 |
* @private
|
|
|
1236 |
* @param {Array} array The array to join.
|
|
|
1237 |
* @param {Array} other The other array to join.
|
|
|
1238 |
* @returns {Array} Returns the new concatenated array.
|
|
|
1239 |
*/
|
|
|
1240 |
function arrayConcat(array, other) {
|
|
|
1241 |
var index = -1,
|
|
|
1242 |
length = array.length,
|
|
|
1243 |
othIndex = -1,
|
|
|
1244 |
othLength = other.length,
|
|
|
1245 |
result = Array(length + othLength);
|
|
|
1246 |
|
|
|
1247 |
while (++index < length) {
|
|
|
1248 |
result[index] = array[index];
|
|
|
1249 |
}
|
|
|
1250 |
while (++othIndex < othLength) {
|
|
|
1251 |
result[index++] = other[othIndex];
|
|
|
1252 |
}
|
|
|
1253 |
return result;
|
|
|
1254 |
}
|
|
|
1255 |
|
|
|
1256 |
/**
|
|
|
1257 |
* Copies the values of `source` to `array`.
|
|
|
1258 |
*
|
|
|
1259 |
* @private
|
|
|
1260 |
* @param {Array} source The array to copy values from.
|
|
|
1261 |
* @param {Array} [array=[]] The array to copy values to.
|
|
|
1262 |
* @returns {Array} Returns `array`.
|
|
|
1263 |
*/
|
|
|
1264 |
function arrayCopy(source, array) {
|
|
|
1265 |
var index = -1,
|
|
|
1266 |
length = source.length;
|
|
|
1267 |
|
|
|
1268 |
array || (array = Array(length));
|
|
|
1269 |
while (++index < length) {
|
|
|
1270 |
array[index] = source[index];
|
|
|
1271 |
}
|
|
|
1272 |
return array;
|
|
|
1273 |
}
|
|
|
1274 |
|
|
|
1275 |
/**
|
|
|
1276 |
* A specialized version of `_.forEach` for arrays without support for callback
|
|
|
1277 |
* shorthands and `this` binding.
|
|
|
1278 |
*
|
|
|
1279 |
* @private
|
|
|
1280 |
* @param {Array} array The array to iterate over.
|
|
|
1281 |
* @param {Function} iteratee The function invoked per iteration.
|
|
|
1282 |
* @returns {Array} Returns `array`.
|
|
|
1283 |
*/
|
|
|
1284 |
function arrayEach(array, iteratee) {
|
|
|
1285 |
var index = -1,
|
|
|
1286 |
length = array.length;
|
|
|
1287 |
|
|
|
1288 |
while (++index < length) {
|
|
|
1289 |
if (iteratee(array[index], index, array) === false) {
|
|
|
1290 |
break;
|
|
|
1291 |
}
|
|
|
1292 |
}
|
|
|
1293 |
return array;
|
|
|
1294 |
}
|
|
|
1295 |
|
|
|
1296 |
/**
|
|
|
1297 |
* A specialized version of `_.forEachRight` for arrays without support for
|
|
|
1298 |
* callback shorthands and `this` binding.
|
|
|
1299 |
*
|
|
|
1300 |
* @private
|
|
|
1301 |
* @param {Array} array The array to iterate over.
|
|
|
1302 |
* @param {Function} iteratee The function invoked per iteration.
|
|
|
1303 |
* @returns {Array} Returns `array`.
|
|
|
1304 |
*/
|
|
|
1305 |
function arrayEachRight(array, iteratee) {
|
|
|
1306 |
var length = array.length;
|
|
|
1307 |
|
|
|
1308 |
while (length--) {
|
|
|
1309 |
if (iteratee(array[length], length, array) === false) {
|
|
|
1310 |
break;
|
|
|
1311 |
}
|
|
|
1312 |
}
|
|
|
1313 |
return array;
|
|
|
1314 |
}
|
|
|
1315 |
|
|
|
1316 |
/**
|
|
|
1317 |
* A specialized version of `_.every` for arrays without support for callback
|
|
|
1318 |
* shorthands and `this` binding.
|
|
|
1319 |
*
|
|
|
1320 |
* @private
|
|
|
1321 |
* @param {Array} array The array to iterate over.
|
|
|
1322 |
* @param {Function} predicate The function invoked per iteration.
|
|
|
1323 |
* @returns {boolean} Returns `true` if all elements pass the predicate check,
|
|
|
1324 |
* else `false`.
|
|
|
1325 |
*/
|
|
|
1326 |
function arrayEvery(array, predicate) {
|
|
|
1327 |
var index = -1,
|
|
|
1328 |
length = array.length;
|
|
|
1329 |
|
|
|
1330 |
while (++index < length) {
|
|
|
1331 |
if (!predicate(array[index], index, array)) {
|
|
|
1332 |
return false;
|
|
|
1333 |
}
|
|
|
1334 |
}
|
|
|
1335 |
return true;
|
|
|
1336 |
}
|
|
|
1337 |
|
|
|
1338 |
/**
|
|
|
1339 |
* A specialized version of `baseExtremum` for arrays which invokes `iteratee`
|
|
|
1340 |
* with one argument: (value).
|
|
|
1341 |
*
|
|
|
1342 |
* @private
|
|
|
1343 |
* @param {Array} array The array to iterate over.
|
|
|
1344 |
* @param {Function} iteratee The function invoked per iteration.
|
|
|
1345 |
* @param {Function} comparator The function used to compare values.
|
|
|
1346 |
* @param {*} exValue The initial extremum value.
|
|
|
1347 |
* @returns {*} Returns the extremum value.
|
|
|
1348 |
*/
|
|
|
1349 |
function arrayExtremum(array, iteratee, comparator, exValue) {
|
|
|
1350 |
var index = -1,
|
|
|
1351 |
length = array.length,
|
|
|
1352 |
computed = exValue,
|
|
|
1353 |
result = computed;
|
|
|
1354 |
|
|
|
1355 |
while (++index < length) {
|
|
|
1356 |
var value = array[index],
|
|
|
1357 |
current = +iteratee(value);
|
|
|
1358 |
|
|
|
1359 |
if (comparator(current, computed)) {
|
|
|
1360 |
computed = current;
|
|
|
1361 |
result = value;
|
|
|
1362 |
}
|
|
|
1363 |
}
|
|
|
1364 |
return result;
|
|
|
1365 |
}
|
|
|
1366 |
|
|
|
1367 |
/**
|
|
|
1368 |
* A specialized version of `_.filter` for arrays without support for callback
|
|
|
1369 |
* shorthands and `this` binding.
|
|
|
1370 |
*
|
|
|
1371 |
* @private
|
|
|
1372 |
* @param {Array} array The array to iterate over.
|
|
|
1373 |
* @param {Function} predicate The function invoked per iteration.
|
|
|
1374 |
* @returns {Array} Returns the new filtered array.
|
|
|
1375 |
*/
|
|
|
1376 |
function arrayFilter(array, predicate) {
|
|
|
1377 |
var index = -1,
|
|
|
1378 |
length = array.length,
|
|
|
1379 |
resIndex = -1,
|
|
|
1380 |
result = [];
|
|
|
1381 |
|
|
|
1382 |
while (++index < length) {
|
|
|
1383 |
var value = array[index];
|
|
|
1384 |
if (predicate(value, index, array)) {
|
|
|
1385 |
result[++resIndex] = value;
|
|
|
1386 |
}
|
|
|
1387 |
}
|
|
|
1388 |
return result;
|
|
|
1389 |
}
|
|
|
1390 |
|
|
|
1391 |
/**
|
|
|
1392 |
* A specialized version of `_.map` for arrays without support for callback
|
|
|
1393 |
* shorthands and `this` binding.
|
|
|
1394 |
*
|
|
|
1395 |
* @private
|
|
|
1396 |
* @param {Array} array The array to iterate over.
|
|
|
1397 |
* @param {Function} iteratee The function invoked per iteration.
|
|
|
1398 |
* @returns {Array} Returns the new mapped array.
|
|
|
1399 |
*/
|
|
|
1400 |
function arrayMap(array, iteratee) {
|
|
|
1401 |
var index = -1,
|
|
|
1402 |
length = array.length,
|
|
|
1403 |
result = Array(length);
|
|
|
1404 |
|
|
|
1405 |
while (++index < length) {
|
|
|
1406 |
result[index] = iteratee(array[index], index, array);
|
|
|
1407 |
}
|
|
|
1408 |
return result;
|
|
|
1409 |
}
|
|
|
1410 |
|
|
|
1411 |
/**
|
|
|
1412 |
* Appends the elements of `values` to `array`.
|
|
|
1413 |
*
|
|
|
1414 |
* @private
|
|
|
1415 |
* @param {Array} array The array to modify.
|
|
|
1416 |
* @param {Array} values The values to append.
|
|
|
1417 |
* @returns {Array} Returns `array`.
|
|
|
1418 |
*/
|
|
|
1419 |
function arrayPush(array, values) {
|
|
|
1420 |
var index = -1,
|
|
|
1421 |
length = values.length,
|
|
|
1422 |
offset = array.length;
|
|
|
1423 |
|
|
|
1424 |
while (++index < length) {
|
|
|
1425 |
array[offset + index] = values[index];
|
|
|
1426 |
}
|
|
|
1427 |
return array;
|
|
|
1428 |
}
|
|
|
1429 |
|
|
|
1430 |
/**
|
|
|
1431 |
* A specialized version of `_.reduce` for arrays without support for callback
|
|
|
1432 |
* shorthands and `this` binding.
|
|
|
1433 |
*
|
|
|
1434 |
* @private
|
|
|
1435 |
* @param {Array} array The array to iterate over.
|
|
|
1436 |
* @param {Function} iteratee The function invoked per iteration.
|
|
|
1437 |
* @param {*} [accumulator] The initial value.
|
|
|
1438 |
* @param {boolean} [initFromArray] Specify using the first element of `array`
|
|
|
1439 |
* as the initial value.
|
|
|
1440 |
* @returns {*} Returns the accumulated value.
|
|
|
1441 |
*/
|
|
|
1442 |
function arrayReduce(array, iteratee, accumulator, initFromArray) {
|
|
|
1443 |
var index = -1,
|
|
|
1444 |
length = array.length;
|
|
|
1445 |
|
|
|
1446 |
if (initFromArray && length) {
|
|
|
1447 |
accumulator = array[++index];
|
|
|
1448 |
}
|
|
|
1449 |
while (++index < length) {
|
|
|
1450 |
accumulator = iteratee(accumulator, array[index], index, array);
|
|
|
1451 |
}
|
|
|
1452 |
return accumulator;
|
|
|
1453 |
}
|
|
|
1454 |
|
|
|
1455 |
/**
|
|
|
1456 |
* A specialized version of `_.reduceRight` for arrays without support for
|
|
|
1457 |
* callback shorthands and `this` binding.
|
|
|
1458 |
*
|
|
|
1459 |
* @private
|
|
|
1460 |
* @param {Array} array The array to iterate over.
|
|
|
1461 |
* @param {Function} iteratee The function invoked per iteration.
|
|
|
1462 |
* @param {*} [accumulator] The initial value.
|
|
|
1463 |
* @param {boolean} [initFromArray] Specify using the last element of `array`
|
|
|
1464 |
* as the initial value.
|
|
|
1465 |
* @returns {*} Returns the accumulated value.
|
|
|
1466 |
*/
|
|
|
1467 |
function arrayReduceRight(array, iteratee, accumulator, initFromArray) {
|
|
|
1468 |
var length = array.length;
|
|
|
1469 |
if (initFromArray && length) {
|
|
|
1470 |
accumulator = array[--length];
|
|
|
1471 |
}
|
|
|
1472 |
while (length--) {
|
|
|
1473 |
accumulator = iteratee(accumulator, array[length], length, array);
|
|
|
1474 |
}
|
|
|
1475 |
return accumulator;
|
|
|
1476 |
}
|
|
|
1477 |
|
|
|
1478 |
/**
|
|
|
1479 |
* A specialized version of `_.some` for arrays without support for callback
|
|
|
1480 |
* shorthands and `this` binding.
|
|
|
1481 |
*
|
|
|
1482 |
* @private
|
|
|
1483 |
* @param {Array} array The array to iterate over.
|
|
|
1484 |
* @param {Function} predicate The function invoked per iteration.
|
|
|
1485 |
* @returns {boolean} Returns `true` if any element passes the predicate check,
|
|
|
1486 |
* else `false`.
|
|
|
1487 |
*/
|
|
|
1488 |
function arraySome(array, predicate) {
|
|
|
1489 |
var index = -1,
|
|
|
1490 |
length = array.length;
|
|
|
1491 |
|
|
|
1492 |
while (++index < length) {
|
|
|
1493 |
if (predicate(array[index], index, array)) {
|
|
|
1494 |
return true;
|
|
|
1495 |
}
|
|
|
1496 |
}
|
|
|
1497 |
return false;
|
|
|
1498 |
}
|
|
|
1499 |
|
|
|
1500 |
/**
|
|
|
1501 |
* A specialized version of `_.sum` for arrays without support for callback
|
|
|
1502 |
* shorthands and `this` binding..
|
|
|
1503 |
*
|
|
|
1504 |
* @private
|
|
|
1505 |
* @param {Array} array The array to iterate over.
|
|
|
1506 |
* @param {Function} iteratee The function invoked per iteration.
|
|
|
1507 |
* @returns {number} Returns the sum.
|
|
|
1508 |
*/
|
|
|
1509 |
function arraySum(array, iteratee) {
|
|
|
1510 |
var length = array.length,
|
|
|
1511 |
result = 0;
|
|
|
1512 |
|
|
|
1513 |
while (length--) {
|
|
|
1514 |
result += +iteratee(array[length]) || 0;
|
|
|
1515 |
}
|
|
|
1516 |
return result;
|
|
|
1517 |
}
|
|
|
1518 |
|
|
|
1519 |
/**
|
|
|
1520 |
* Used by `_.defaults` to customize its `_.assign` use.
|
|
|
1521 |
*
|
|
|
1522 |
* @private
|
|
|
1523 |
* @param {*} objectValue The destination object property value.
|
|
|
1524 |
* @param {*} sourceValue The source object property value.
|
|
|
1525 |
* @returns {*} Returns the value to assign to the destination object.
|
|
|
1526 |
*/
|
|
|
1527 |
function assignDefaults(objectValue, sourceValue) {
|
|
|
1528 |
return objectValue === undefined ? sourceValue : objectValue;
|
|
|
1529 |
}
|
|
|
1530 |
|
|
|
1531 |
/**
|
|
|
1532 |
* Used by `_.template` to customize its `_.assign` use.
|
|
|
1533 |
*
|
|
|
1534 |
* **Note:** This function is like `assignDefaults` except that it ignores
|
|
|
1535 |
* inherited property values when checking if a property is `undefined`.
|
|
|
1536 |
*
|
|
|
1537 |
* @private
|
|
|
1538 |
* @param {*} objectValue The destination object property value.
|
|
|
1539 |
* @param {*} sourceValue The source object property value.
|
|
|
1540 |
* @param {string} key The key associated with the object and source values.
|
|
|
1541 |
* @param {Object} object The destination object.
|
|
|
1542 |
* @returns {*} Returns the value to assign to the destination object.
|
|
|
1543 |
*/
|
|
|
1544 |
function assignOwnDefaults(objectValue, sourceValue, key, object) {
|
|
|
1545 |
return (objectValue === undefined || !hasOwnProperty.call(object, key))
|
|
|
1546 |
? sourceValue
|
|
|
1547 |
: objectValue;
|
|
|
1548 |
}
|
|
|
1549 |
|
|
|
1550 |
/**
|
|
|
1551 |
* A specialized version of `_.assign` for customizing assigned values without
|
|
|
1552 |
* support for argument juggling, multiple sources, and `this` binding `customizer`
|
|
|
1553 |
* functions.
|
|
|
1554 |
*
|
|
|
1555 |
* @private
|
|
|
1556 |
* @param {Object} object The destination object.
|
|
|
1557 |
* @param {Object} source The source object.
|
|
|
1558 |
* @param {Function} customizer The function to customize assigned values.
|
|
|
1559 |
* @returns {Object} Returns `object`.
|
|
|
1560 |
*/
|
|
|
1561 |
function assignWith(object, source, customizer) {
|
|
|
1562 |
var index = -1,
|
|
|
1563 |
props = keys(source),
|
|
|
1564 |
length = props.length;
|
|
|
1565 |
|
|
|
1566 |
while (++index < length) {
|
|
|
1567 |
var key = props[index],
|
|
|
1568 |
value = object[key],
|
|
|
1569 |
result = customizer(value, source[key], key, object, source);
|
|
|
1570 |
|
|
|
1571 |
if ((result === result ? (result !== value) : (value === value)) ||
|
|
|
1572 |
(value === undefined && !(key in object))) {
|
|
|
1573 |
object[key] = result;
|
|
|
1574 |
}
|
|
|
1575 |
}
|
|
|
1576 |
return object;
|
|
|
1577 |
}
|
|
|
1578 |
|
|
|
1579 |
/**
|
|
|
1580 |
* The base implementation of `_.assign` without support for argument juggling,
|
|
|
1581 |
* multiple sources, and `customizer` functions.
|
|
|
1582 |
*
|
|
|
1583 |
* @private
|
|
|
1584 |
* @param {Object} object The destination object.
|
|
|
1585 |
* @param {Object} source The source object.
|
|
|
1586 |
* @returns {Object} Returns `object`.
|
|
|
1587 |
*/
|
|
|
1588 |
function baseAssign(object, source) {
|
|
|
1589 |
return source == null
|
|
|
1590 |
? object
|
|
|
1591 |
: baseCopy(source, keys(source), object);
|
|
|
1592 |
}
|
|
|
1593 |
|
|
|
1594 |
/**
|
|
|
1595 |
* The base implementation of `_.at` without support for string collections
|
|
|
1596 |
* and individual key arguments.
|
|
|
1597 |
*
|
|
|
1598 |
* @private
|
|
|
1599 |
* @param {Array|Object} collection The collection to iterate over.
|
|
|
1600 |
* @param {number[]|string[]} props The property names or indexes of elements to pick.
|
|
|
1601 |
* @returns {Array} Returns the new array of picked elements.
|
|
|
1602 |
*/
|
|
|
1603 |
function baseAt(collection, props) {
|
|
|
1604 |
var index = -1,
|
|
|
1605 |
isNil = collection == null,
|
|
|
1606 |
isArr = !isNil && isArrayLike(collection),
|
|
|
1607 |
length = isArr ? collection.length : 0,
|
|
|
1608 |
propsLength = props.length,
|
|
|
1609 |
result = Array(propsLength);
|
|
|
1610 |
|
|
|
1611 |
while(++index < propsLength) {
|
|
|
1612 |
var key = props[index];
|
|
|
1613 |
if (isArr) {
|
|
|
1614 |
result[index] = isIndex(key, length) ? collection[key] : undefined;
|
|
|
1615 |
} else {
|
|
|
1616 |
result[index] = isNil ? undefined : collection[key];
|
|
|
1617 |
}
|
|
|
1618 |
}
|
|
|
1619 |
return result;
|
|
|
1620 |
}
|
|
|
1621 |
|
|
|
1622 |
/**
|
|
|
1623 |
* Copies properties of `source` to `object`.
|
|
|
1624 |
*
|
|
|
1625 |
* @private
|
|
|
1626 |
* @param {Object} source The object to copy properties from.
|
|
|
1627 |
* @param {Array} props The property names to copy.
|
|
|
1628 |
* @param {Object} [object={}] The object to copy properties to.
|
|
|
1629 |
* @returns {Object} Returns `object`.
|
|
|
1630 |
*/
|
|
|
1631 |
function baseCopy(source, props, object) {
|
|
|
1632 |
object || (object = {});
|
|
|
1633 |
|
|
|
1634 |
var index = -1,
|
|
|
1635 |
length = props.length;
|
|
|
1636 |
|
|
|
1637 |
while (++index < length) {
|
|
|
1638 |
var key = props[index];
|
|
|
1639 |
object[key] = source[key];
|
|
|
1640 |
}
|
|
|
1641 |
return object;
|
|
|
1642 |
}
|
|
|
1643 |
|
|
|
1644 |
/**
|
|
|
1645 |
* The base implementation of `_.callback` which supports specifying the
|
|
|
1646 |
* number of arguments to provide to `func`.
|
|
|
1647 |
*
|
|
|
1648 |
* @private
|
|
|
1649 |
* @param {*} [func=_.identity] The value to convert to a callback.
|
|
|
1650 |
* @param {*} [thisArg] The `this` binding of `func`.
|
|
|
1651 |
* @param {number} [argCount] The number of arguments to provide to `func`.
|
|
|
1652 |
* @returns {Function} Returns the callback.
|
|
|
1653 |
*/
|
|
|
1654 |
function baseCallback(func, thisArg, argCount) {
|
|
|
1655 |
var type = typeof func;
|
|
|
1656 |
if (type == 'function') {
|
|
|
1657 |
return thisArg === undefined
|
|
|
1658 |
? func
|
|
|
1659 |
: bindCallback(func, thisArg, argCount);
|
|
|
1660 |
}
|
|
|
1661 |
if (func == null) {
|
|
|
1662 |
return identity;
|
|
|
1663 |
}
|
|
|
1664 |
if (type == 'object') {
|
|
|
1665 |
return baseMatches(func);
|
|
|
1666 |
}
|
|
|
1667 |
return thisArg === undefined
|
|
|
1668 |
? property(func)
|
|
|
1669 |
: baseMatchesProperty(func, thisArg);
|
|
|
1670 |
}
|
|
|
1671 |
|
|
|
1672 |
/**
|
|
|
1673 |
* The base implementation of `_.clone` without support for argument juggling
|
|
|
1674 |
* and `this` binding `customizer` functions.
|
|
442
|
1675 |
*
|
|
|
1676 |
* @private
|
|
|
1677 |
* @param {*} value The value to clone.
|
|
498
|
1678 |
* @param {boolean} [isDeep] Specify a deep clone.
|
|
|
1679 |
* @param {Function} [customizer] The function to customize cloning values.
|
|
|
1680 |
* @param {string} [key] The key of `value`.
|
|
|
1681 |
* @param {Object} [object] The object `value` belongs to.
|
|
442
|
1682 |
* @param {Array} [stackA=[]] Tracks traversed source objects.
|
|
|
1683 |
* @param {Array} [stackB=[]] Associates clones with source counterparts.
|
|
|
1684 |
* @returns {*} Returns the cloned value.
|
|
|
1685 |
*/
|
|
498
|
1686 |
function baseClone(value, isDeep, customizer, key, object, stackA, stackB) {
|
|
|
1687 |
var result;
|
|
|
1688 |
if (customizer) {
|
|
|
1689 |
result = object ? customizer(value, key, object) : customizer(value);
|
|
|
1690 |
}
|
|
|
1691 |
if (result !== undefined) {
|
|
|
1692 |
return result;
|
|
|
1693 |
}
|
|
|
1694 |
if (!isObject(value)) {
|
|
442
|
1695 |
return value;
|
|
|
1696 |
}
|
|
|
1697 |
var isArr = isArray(value);
|
|
498
|
1698 |
if (isArr) {
|
|
|
1699 |
result = initCloneArray(value);
|
|
|
1700 |
if (!isDeep) {
|
|
|
1701 |
return arrayCopy(value, result);
|
|
|
1702 |
}
|
|
|
1703 |
} else {
|
|
|
1704 |
var tag = objToString.call(value),
|
|
|
1705 |
isFunc = tag == funcTag;
|
|
|
1706 |
|
|
|
1707 |
if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
|
|
|
1708 |
result = initCloneObject(isFunc ? {} : value);
|
|
|
1709 |
if (!isDeep) {
|
|
|
1710 |
return baseAssign(result, value);
|
|
442
|
1711 |
}
|
|
498
|
1712 |
} else {
|
|
|
1713 |
return cloneableTags[tag]
|
|
|
1714 |
? initCloneByTag(value, tag, isDeep)
|
|
|
1715 |
: (object ? value : {});
|
|
|
1716 |
}
|
|
|
1717 |
}
|
|
|
1718 |
// Check for circular references and return its corresponding clone.
|
|
|
1719 |
stackA || (stackA = []);
|
|
|
1720 |
stackB || (stackB = []);
|
|
|
1721 |
|
|
|
1722 |
var length = stackA.length;
|
|
|
1723 |
while (length--) {
|
|
|
1724 |
if (stackA[length] == value) {
|
|
|
1725 |
return stackB[length];
|
|
|
1726 |
}
|
|
|
1727 |
}
|
|
|
1728 |
// Add the source value to the stack of traversed objects and associate it with its clone.
|
|
442
|
1729 |
stackA.push(value);
|
|
|
1730 |
stackB.push(result);
|
|
|
1731 |
|
|
498
|
1732 |
// Recursively populate clone (susceptible to call stack limits).
|
|
|
1733 |
(isArr ? arrayEach : baseForOwn)(value, function(subValue, key) {
|
|
|
1734 |
result[key] = baseClone(subValue, isDeep, customizer, key, value, stackA, stackB);
|
|
442
|
1735 |
});
|
|
|
1736 |
return result;
|
|
|
1737 |
}
|
|
|
1738 |
|
|
|
1739 |
/**
|
|
|
1740 |
* The base implementation of `_.create` without support for assigning
|
|
|
1741 |
* properties to the created object.
|
|
|
1742 |
*
|
|
|
1743 |
* @private
|
|
|
1744 |
* @param {Object} prototype The object to inherit from.
|
|
|
1745 |
* @returns {Object} Returns the new object.
|
|
|
1746 |
*/
|
|
498
|
1747 |
var baseCreate = (function() {
|
|
|
1748 |
function object() {}
|
|
|
1749 |
return function(prototype) {
|
|
|
1750 |
if (isObject(prototype)) {
|
|
|
1751 |
object.prototype = prototype;
|
|
|
1752 |
var result = new object;
|
|
|
1753 |
object.prototype = undefined;
|
|
|
1754 |
}
|
|
|
1755 |
return result || {};
|
|
|
1756 |
};
|
|
|
1757 |
}());
|
|
|
1758 |
|
|
|
1759 |
/**
|
|
|
1760 |
* The base implementation of `_.delay` and `_.defer` which accepts an index
|
|
|
1761 |
* of where to slice the arguments to provide to `func`.
|
|
|
1762 |
*
|
|
|
1763 |
* @private
|
|
|
1764 |
* @param {Function} func The function to delay.
|
|
|
1765 |
* @param {number} wait The number of milliseconds to delay invocation.
|
|
|
1766 |
* @param {Object} args The arguments provide to `func`.
|
|
|
1767 |
* @returns {number} Returns the timer id.
|
|
|
1768 |
*/
|
|
|
1769 |
function baseDelay(func, wait, args) {
|
|
|
1770 |
if (typeof func != 'function') {
|
|
|
1771 |
throw new TypeError(FUNC_ERROR_TEXT);
|
|
|
1772 |
}
|
|
|
1773 |
return setTimeout(function() { func.apply(undefined, args); }, wait);
|
|
|
1774 |
}
|
|
|
1775 |
|
|
|
1776 |
/**
|
|
|
1777 |
* The base implementation of `_.difference` which accepts a single array
|
|
|
1778 |
* of values to exclude.
|
|
|
1779 |
*
|
|
|
1780 |
* @private
|
|
|
1781 |
* @param {Array} array The array to inspect.
|
|
|
1782 |
* @param {Array} values The values to exclude.
|
|
|
1783 |
* @returns {Array} Returns the new array of filtered values.
|
|
|
1784 |
*/
|
|
|
1785 |
function baseDifference(array, values) {
|
|
|
1786 |
var length = array ? array.length : 0,
|
|
|
1787 |
result = [];
|
|
|
1788 |
|
|
|
1789 |
if (!length) {
|
|
|
1790 |
return result;
|
|
|
1791 |
}
|
|
|
1792 |
var index = -1,
|
|
|
1793 |
indexOf = getIndexOf(),
|
|
|
1794 |
isCommon = indexOf === baseIndexOf,
|
|
|
1795 |
cache = (isCommon && values.length >= LARGE_ARRAY_SIZE) ? createCache(values) : null,
|
|
|
1796 |
valuesLength = values.length;
|
|
|
1797 |
|
|
|
1798 |
if (cache) {
|
|
|
1799 |
indexOf = cacheIndexOf;
|
|
|
1800 |
isCommon = false;
|
|
|
1801 |
values = cache;
|
|
|
1802 |
}
|
|
|
1803 |
outer:
|
|
|
1804 |
while (++index < length) {
|
|
|
1805 |
var value = array[index];
|
|
|
1806 |
|
|
|
1807 |
if (isCommon && value === value) {
|
|
|
1808 |
var valuesIndex = valuesLength;
|
|
|
1809 |
while (valuesIndex--) {
|
|
|
1810 |
if (values[valuesIndex] === value) {
|
|
|
1811 |
continue outer;
|
|
|
1812 |
}
|
|
|
1813 |
}
|
|
|
1814 |
result.push(value);
|
|
|
1815 |
}
|
|
|
1816 |
else if (indexOf(values, value, 0) < 0) {
|
|
|
1817 |
result.push(value);
|
|
|
1818 |
}
|
|
|
1819 |
}
|
|
|
1820 |
return result;
|
|
|
1821 |
}
|
|
|
1822 |
|
|
|
1823 |
/**
|
|
|
1824 |
* The base implementation of `_.forEach` without support for callback
|
|
|
1825 |
* shorthands and `this` binding.
|
|
|
1826 |
*
|
|
|
1827 |
* @private
|
|
|
1828 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
|
1829 |
* @param {Function} iteratee The function invoked per iteration.
|
|
|
1830 |
* @returns {Array|Object|string} Returns `collection`.
|
|
|
1831 |
*/
|
|
|
1832 |
var baseEach = createBaseEach(baseForOwn);
|
|
|
1833 |
|
|
|
1834 |
/**
|
|
|
1835 |
* The base implementation of `_.forEachRight` without support for callback
|
|
|
1836 |
* shorthands and `this` binding.
|
|
|
1837 |
*
|
|
|
1838 |
* @private
|
|
|
1839 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
|
1840 |
* @param {Function} iteratee The function invoked per iteration.
|
|
|
1841 |
* @returns {Array|Object|string} Returns `collection`.
|
|
|
1842 |
*/
|
|
|
1843 |
var baseEachRight = createBaseEach(baseForOwnRight, true);
|
|
|
1844 |
|
|
|
1845 |
/**
|
|
|
1846 |
* The base implementation of `_.every` without support for callback
|
|
|
1847 |
* shorthands and `this` binding.
|
|
|
1848 |
*
|
|
|
1849 |
* @private
|
|
|
1850 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
|
1851 |
* @param {Function} predicate The function invoked per iteration.
|
|
|
1852 |
* @returns {boolean} Returns `true` if all elements pass the predicate check,
|
|
|
1853 |
* else `false`
|
|
|
1854 |
*/
|
|
|
1855 |
function baseEvery(collection, predicate) {
|
|
|
1856 |
var result = true;
|
|
|
1857 |
baseEach(collection, function(value, index, collection) {
|
|
|
1858 |
result = !!predicate(value, index, collection);
|
|
|
1859 |
return result;
|
|
|
1860 |
});
|
|
|
1861 |
return result;
|
|
|
1862 |
}
|
|
|
1863 |
|
|
|
1864 |
/**
|
|
|
1865 |
* Gets the extremum value of `collection` invoking `iteratee` for each value
|
|
|
1866 |
* in `collection` to generate the criterion by which the value is ranked.
|
|
|
1867 |
* The `iteratee` is invoked with three arguments: (value, index|key, collection).
|
|
|
1868 |
*
|
|
|
1869 |
* @private
|
|
|
1870 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
|
1871 |
* @param {Function} iteratee The function invoked per iteration.
|
|
|
1872 |
* @param {Function} comparator The function used to compare values.
|
|
|
1873 |
* @param {*} exValue The initial extremum value.
|
|
|
1874 |
* @returns {*} Returns the extremum value.
|
|
|
1875 |
*/
|
|
|
1876 |
function baseExtremum(collection, iteratee, comparator, exValue) {
|
|
|
1877 |
var computed = exValue,
|
|
|
1878 |
result = computed;
|
|
|
1879 |
|
|
|
1880 |
baseEach(collection, function(value, index, collection) {
|
|
|
1881 |
var current = +iteratee(value, index, collection);
|
|
|
1882 |
if (comparator(current, computed) || (current === exValue && current === result)) {
|
|
|
1883 |
computed = current;
|
|
|
1884 |
result = value;
|
|
|
1885 |
}
|
|
|
1886 |
});
|
|
|
1887 |
return result;
|
|
|
1888 |
}
|
|
|
1889 |
|
|
|
1890 |
/**
|
|
|
1891 |
* The base implementation of `_.fill` without an iteratee call guard.
|
|
|
1892 |
*
|
|
|
1893 |
* @private
|
|
|
1894 |
* @param {Array} array The array to fill.
|
|
|
1895 |
* @param {*} value The value to fill `array` with.
|
|
|
1896 |
* @param {number} [start=0] The start position.
|
|
|
1897 |
* @param {number} [end=array.length] The end position.
|
|
|
1898 |
* @returns {Array} Returns `array`.
|
|
|
1899 |
*/
|
|
|
1900 |
function baseFill(array, value, start, end) {
|
|
|
1901 |
var length = array.length;
|
|
|
1902 |
|
|
|
1903 |
start = start == null ? 0 : (+start || 0);
|
|
|
1904 |
if (start < 0) {
|
|
|
1905 |
start = -start > length ? 0 : (length + start);
|
|
|
1906 |
}
|
|
|
1907 |
end = (end === undefined || end > length) ? length : (+end || 0);
|
|
|
1908 |
if (end < 0) {
|
|
|
1909 |
end += length;
|
|
|
1910 |
}
|
|
|
1911 |
length = start > end ? 0 : (end >>> 0);
|
|
|
1912 |
start >>>= 0;
|
|
|
1913 |
|
|
|
1914 |
while (start < length) {
|
|
|
1915 |
array[start++] = value;
|
|
|
1916 |
}
|
|
|
1917 |
return array;
|
|
|
1918 |
}
|
|
|
1919 |
|
|
|
1920 |
/**
|
|
|
1921 |
* The base implementation of `_.filter` without support for callback
|
|
|
1922 |
* shorthands and `this` binding.
|
|
|
1923 |
*
|
|
|
1924 |
* @private
|
|
|
1925 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
|
1926 |
* @param {Function} predicate The function invoked per iteration.
|
|
|
1927 |
* @returns {Array} Returns the new filtered array.
|
|
|
1928 |
*/
|
|
|
1929 |
function baseFilter(collection, predicate) {
|
|
|
1930 |
var result = [];
|
|
|
1931 |
baseEach(collection, function(value, index, collection) {
|
|
|
1932 |
if (predicate(value, index, collection)) {
|
|
|
1933 |
result.push(value);
|
|
|
1934 |
}
|
|
|
1935 |
});
|
|
|
1936 |
return result;
|
|
|
1937 |
}
|
|
|
1938 |
|
|
|
1939 |
/**
|
|
|
1940 |
* The base implementation of `_.find`, `_.findLast`, `_.findKey`, and `_.findLastKey`,
|
|
|
1941 |
* without support for callback shorthands and `this` binding, which iterates
|
|
|
1942 |
* over `collection` using the provided `eachFunc`.
|
|
|
1943 |
*
|
|
|
1944 |
* @private
|
|
|
1945 |
* @param {Array|Object|string} collection The collection to search.
|
|
|
1946 |
* @param {Function} predicate The function invoked per iteration.
|
|
|
1947 |
* @param {Function} eachFunc The function to iterate over `collection`.
|
|
|
1948 |
* @param {boolean} [retKey] Specify returning the key of the found element
|
|
|
1949 |
* instead of the element itself.
|
|
|
1950 |
* @returns {*} Returns the found element or its key, else `undefined`.
|
|
|
1951 |
*/
|
|
|
1952 |
function baseFind(collection, predicate, eachFunc, retKey) {
|
|
|
1953 |
var result;
|
|
|
1954 |
eachFunc(collection, function(value, key, collection) {
|
|
|
1955 |
if (predicate(value, key, collection)) {
|
|
|
1956 |
result = retKey ? key : value;
|
|
|
1957 |
return false;
|
|
|
1958 |
}
|
|
|
1959 |
});
|
|
|
1960 |
return result;
|
|
|
1961 |
}
|
|
|
1962 |
|
|
|
1963 |
/**
|
|
|
1964 |
* The base implementation of `_.flatten` with added support for restricting
|
|
|
1965 |
* flattening and specifying the start index.
|
|
|
1966 |
*
|
|
|
1967 |
* @private
|
|
|
1968 |
* @param {Array} array The array to flatten.
|
|
|
1969 |
* @param {boolean} [isDeep] Specify a deep flatten.
|
|
|
1970 |
* @param {boolean} [isStrict] Restrict flattening to arrays-like objects.
|
|
|
1971 |
* @param {Array} [result=[]] The initial result value.
|
|
|
1972 |
* @returns {Array} Returns the new flattened array.
|
|
|
1973 |
*/
|
|
|
1974 |
function baseFlatten(array, isDeep, isStrict, result) {
|
|
|
1975 |
result || (result = []);
|
|
|
1976 |
|
|
|
1977 |
var index = -1,
|
|
|
1978 |
length = array.length;
|
|
|
1979 |
|
|
|
1980 |
while (++index < length) {
|
|
|
1981 |
var value = array[index];
|
|
|
1982 |
if (isObjectLike(value) && isArrayLike(value) &&
|
|
|
1983 |
(isStrict || isArray(value) || isArguments(value))) {
|
|
|
1984 |
if (isDeep) {
|
|
|
1985 |
// Recursively flatten arrays (susceptible to call stack limits).
|
|
|
1986 |
baseFlatten(value, isDeep, isStrict, result);
|
|
|
1987 |
} else {
|
|
|
1988 |
arrayPush(result, value);
|
|
442
|
1989 |
}
|
|
498
|
1990 |
} else if (!isStrict) {
|
|
|
1991 |
result[result.length] = value;
|
|
|
1992 |
}
|
|
|
1993 |
}
|
|
|
1994 |
return result;
|
|
|
1995 |
}
|
|
|
1996 |
|
|
|
1997 |
/**
|
|
|
1998 |
* The base implementation of `baseForIn` and `baseForOwn` which iterates
|
|
|
1999 |
* over `object` properties returned by `keysFunc` invoking `iteratee` for
|
|
|
2000 |
* each property. Iteratee functions may exit iteration early by explicitly
|
|
|
2001 |
* returning `false`.
|
|
|
2002 |
*
|
|
|
2003 |
* @private
|
|
|
2004 |
* @param {Object} object The object to iterate over.
|
|
|
2005 |
* @param {Function} iteratee The function invoked per iteration.
|
|
|
2006 |
* @param {Function} keysFunc The function to get the keys of `object`.
|
|
|
2007 |
* @returns {Object} Returns `object`.
|
|
|
2008 |
*/
|
|
|
2009 |
var baseFor = createBaseFor();
|
|
|
2010 |
|
|
|
2011 |
/**
|
|
|
2012 |
* This function is like `baseFor` except that it iterates over properties
|
|
|
2013 |
* in the opposite order.
|
|
|
2014 |
*
|
|
|
2015 |
* @private
|
|
|
2016 |
* @param {Object} object The object to iterate over.
|
|
|
2017 |
* @param {Function} iteratee The function invoked per iteration.
|
|
|
2018 |
* @param {Function} keysFunc The function to get the keys of `object`.
|
|
|
2019 |
* @returns {Object} Returns `object`.
|
|
|
2020 |
*/
|
|
|
2021 |
var baseForRight = createBaseFor(true);
|
|
|
2022 |
|
|
|
2023 |
/**
|
|
|
2024 |
* The base implementation of `_.forIn` without support for callback
|
|
|
2025 |
* shorthands and `this` binding.
|
|
|
2026 |
*
|
|
|
2027 |
* @private
|
|
|
2028 |
* @param {Object} object The object to iterate over.
|
|
|
2029 |
* @param {Function} iteratee The function invoked per iteration.
|
|
|
2030 |
* @returns {Object} Returns `object`.
|
|
|
2031 |
*/
|
|
|
2032 |
function baseForIn(object, iteratee) {
|
|
|
2033 |
return baseFor(object, iteratee, keysIn);
|
|
|
2034 |
}
|
|
|
2035 |
|
|
|
2036 |
/**
|
|
|
2037 |
* The base implementation of `_.forOwn` without support for callback
|
|
|
2038 |
* shorthands and `this` binding.
|
|
|
2039 |
*
|
|
|
2040 |
* @private
|
|
|
2041 |
* @param {Object} object The object to iterate over.
|
|
|
2042 |
* @param {Function} iteratee The function invoked per iteration.
|
|
|
2043 |
* @returns {Object} Returns `object`.
|
|
|
2044 |
*/
|
|
|
2045 |
function baseForOwn(object, iteratee) {
|
|
|
2046 |
return baseFor(object, iteratee, keys);
|
|
|
2047 |
}
|
|
|
2048 |
|
|
|
2049 |
/**
|
|
|
2050 |
* The base implementation of `_.forOwnRight` without support for callback
|
|
|
2051 |
* shorthands and `this` binding.
|
|
|
2052 |
*
|
|
|
2053 |
* @private
|
|
|
2054 |
* @param {Object} object The object to iterate over.
|
|
|
2055 |
* @param {Function} iteratee The function invoked per iteration.
|
|
|
2056 |
* @returns {Object} Returns `object`.
|
|
|
2057 |
*/
|
|
|
2058 |
function baseForOwnRight(object, iteratee) {
|
|
|
2059 |
return baseForRight(object, iteratee, keys);
|
|
|
2060 |
}
|
|
|
2061 |
|
|
|
2062 |
/**
|
|
|
2063 |
* The base implementation of `_.functions` which creates an array of
|
|
|
2064 |
* `object` function property names filtered from those provided.
|
|
|
2065 |
*
|
|
|
2066 |
* @private
|
|
|
2067 |
* @param {Object} object The object to inspect.
|
|
|
2068 |
* @param {Array} props The property names to filter.
|
|
|
2069 |
* @returns {Array} Returns the new array of filtered property names.
|
|
|
2070 |
*/
|
|
|
2071 |
function baseFunctions(object, props) {
|
|
|
2072 |
var index = -1,
|
|
|
2073 |
length = props.length,
|
|
|
2074 |
resIndex = -1,
|
|
|
2075 |
result = [];
|
|
|
2076 |
|
|
|
2077 |
while (++index < length) {
|
|
|
2078 |
var key = props[index];
|
|
|
2079 |
if (isFunction(object[key])) {
|
|
|
2080 |
result[++resIndex] = key;
|
|
|
2081 |
}
|
|
|
2082 |
}
|
|
|
2083 |
return result;
|
|
|
2084 |
}
|
|
|
2085 |
|
|
|
2086 |
/**
|
|
|
2087 |
* The base implementation of `get` without support for string paths
|
|
|
2088 |
* and default values.
|
|
|
2089 |
*
|
|
|
2090 |
* @private
|
|
|
2091 |
* @param {Object} object The object to query.
|
|
|
2092 |
* @param {Array} path The path of the property to get.
|
|
|
2093 |
* @param {string} [pathKey] The key representation of path.
|
|
|
2094 |
* @returns {*} Returns the resolved value.
|
|
|
2095 |
*/
|
|
|
2096 |
function baseGet(object, path, pathKey) {
|
|
|
2097 |
if (object == null) {
|
|
|
2098 |
return;
|
|
|
2099 |
}
|
|
|
2100 |
if (pathKey !== undefined && pathKey in toObject(object)) {
|
|
|
2101 |
path = [pathKey];
|
|
|
2102 |
}
|
|
|
2103 |
var index = 0,
|
|
|
2104 |
length = path.length;
|
|
|
2105 |
|
|
|
2106 |
while (object != null && index < length) {
|
|
|
2107 |
object = object[path[index++]];
|
|
|
2108 |
}
|
|
|
2109 |
return (index && index == length) ? object : undefined;
|
|
|
2110 |
}
|
|
|
2111 |
|
|
|
2112 |
/**
|
|
|
2113 |
* The base implementation of `_.isEqual` without support for `this` binding
|
|
|
2114 |
* `customizer` functions.
|
|
|
2115 |
*
|
|
|
2116 |
* @private
|
|
|
2117 |
* @param {*} value The value to compare.
|
|
|
2118 |
* @param {*} other The other value to compare.
|
|
|
2119 |
* @param {Function} [customizer] The function to customize comparing values.
|
|
|
2120 |
* @param {boolean} [isLoose] Specify performing partial comparisons.
|
|
|
2121 |
* @param {Array} [stackA] Tracks traversed `value` objects.
|
|
|
2122 |
* @param {Array} [stackB] Tracks traversed `other` objects.
|
|
|
2123 |
* @returns {boolean} Returns `true` if the values are equivalent, else `false`.
|
|
|
2124 |
*/
|
|
|
2125 |
function baseIsEqual(value, other, customizer, isLoose, stackA, stackB) {
|
|
|
2126 |
if (value === other) {
|
|
|
2127 |
return true;
|
|
|
2128 |
}
|
|
|
2129 |
if (value == null || other == null || (!isObject(value) && !isObjectLike(other))) {
|
|
|
2130 |
return value !== value && other !== other;
|
|
|
2131 |
}
|
|
|
2132 |
return baseIsEqualDeep(value, other, baseIsEqual, customizer, isLoose, stackA, stackB);
|
|
|
2133 |
}
|
|
|
2134 |
|
|
|
2135 |
/**
|
|
|
2136 |
* A specialized version of `baseIsEqual` for arrays and objects which performs
|
|
|
2137 |
* deep comparisons and tracks traversed objects enabling objects with circular
|
|
|
2138 |
* references to be compared.
|
|
|
2139 |
*
|
|
|
2140 |
* @private
|
|
|
2141 |
* @param {Object} object The object to compare.
|
|
|
2142 |
* @param {Object} other The other object to compare.
|
|
|
2143 |
* @param {Function} equalFunc The function to determine equivalents of values.
|
|
|
2144 |
* @param {Function} [customizer] The function to customize comparing objects.
|
|
|
2145 |
* @param {boolean} [isLoose] Specify performing partial comparisons.
|
|
|
2146 |
* @param {Array} [stackA=[]] Tracks traversed `value` objects.
|
|
|
2147 |
* @param {Array} [stackB=[]] Tracks traversed `other` objects.
|
|
|
2148 |
* @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
|
|
|
2149 |
*/
|
|
|
2150 |
function baseIsEqualDeep(object, other, equalFunc, customizer, isLoose, stackA, stackB) {
|
|
|
2151 |
var objIsArr = isArray(object),
|
|
|
2152 |
othIsArr = isArray(other),
|
|
|
2153 |
objTag = arrayTag,
|
|
|
2154 |
othTag = arrayTag;
|
|
|
2155 |
|
|
|
2156 |
if (!objIsArr) {
|
|
|
2157 |
objTag = objToString.call(object);
|
|
|
2158 |
if (objTag == argsTag) {
|
|
|
2159 |
objTag = objectTag;
|
|
|
2160 |
} else if (objTag != objectTag) {
|
|
|
2161 |
objIsArr = isTypedArray(object);
|
|
|
2162 |
}
|
|
|
2163 |
}
|
|
|
2164 |
if (!othIsArr) {
|
|
|
2165 |
othTag = objToString.call(other);
|
|
|
2166 |
if (othTag == argsTag) {
|
|
|
2167 |
othTag = objectTag;
|
|
|
2168 |
} else if (othTag != objectTag) {
|
|
|
2169 |
othIsArr = isTypedArray(other);
|
|
|
2170 |
}
|
|
|
2171 |
}
|
|
|
2172 |
var objIsObj = objTag == objectTag,
|
|
|
2173 |
othIsObj = othTag == objectTag,
|
|
|
2174 |
isSameTag = objTag == othTag;
|
|
|
2175 |
|
|
|
2176 |
if (isSameTag && !(objIsArr || objIsObj)) {
|
|
|
2177 |
return equalByTag(object, other, objTag);
|
|
|
2178 |
}
|
|
|
2179 |
if (!isLoose) {
|
|
|
2180 |
var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
|
|
|
2181 |
othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');
|
|
|
2182 |
|
|
|
2183 |
if (objIsWrapped || othIsWrapped) {
|
|
|
2184 |
return equalFunc(objIsWrapped ? object.value() : object, othIsWrapped ? other.value() : other, customizer, isLoose, stackA, stackB);
|
|
|
2185 |
}
|
|
|
2186 |
}
|
|
|
2187 |
if (!isSameTag) {
|
|
|
2188 |
return false;
|
|
|
2189 |
}
|
|
|
2190 |
// Assume cyclic values are equal.
|
|
|
2191 |
// For more information on detecting circular references see https://es5.github.io/#JO.
|
|
|
2192 |
stackA || (stackA = []);
|
|
|
2193 |
stackB || (stackB = []);
|
|
|
2194 |
|
|
|
2195 |
var length = stackA.length;
|
|
|
2196 |
while (length--) {
|
|
|
2197 |
if (stackA[length] == object) {
|
|
|
2198 |
return stackB[length] == other;
|
|
|
2199 |
}
|
|
|
2200 |
}
|
|
|
2201 |
// Add `object` and `other` to the stack of traversed objects.
|
|
|
2202 |
stackA.push(object);
|
|
|
2203 |
stackB.push(other);
|
|
|
2204 |
|
|
|
2205 |
var result = (objIsArr ? equalArrays : equalObjects)(object, other, equalFunc, customizer, isLoose, stackA, stackB);
|
|
|
2206 |
|
|
|
2207 |
stackA.pop();
|
|
|
2208 |
stackB.pop();
|
|
|
2209 |
|
|
|
2210 |
return result;
|
|
|
2211 |
}
|
|
|
2212 |
|
|
|
2213 |
/**
|
|
|
2214 |
* The base implementation of `_.isMatch` without support for callback
|
|
|
2215 |
* shorthands and `this` binding.
|
|
|
2216 |
*
|
|
|
2217 |
* @private
|
|
|
2218 |
* @param {Object} object The object to inspect.
|
|
|
2219 |
* @param {Array} matchData The propery names, values, and compare flags to match.
|
|
|
2220 |
* @param {Function} [customizer] The function to customize comparing objects.
|
|
|
2221 |
* @returns {boolean} Returns `true` if `object` is a match, else `false`.
|
|
|
2222 |
*/
|
|
|
2223 |
function baseIsMatch(object, matchData, customizer) {
|
|
|
2224 |
var index = matchData.length,
|
|
|
2225 |
length = index,
|
|
|
2226 |
noCustomizer = !customizer;
|
|
|
2227 |
|
|
|
2228 |
if (object == null) {
|
|
|
2229 |
return !length;
|
|
|
2230 |
}
|
|
|
2231 |
object = toObject(object);
|
|
|
2232 |
while (index--) {
|
|
|
2233 |
var data = matchData[index];
|
|
|
2234 |
if ((noCustomizer && data[2])
|
|
|
2235 |
? data[1] !== object[data[0]]
|
|
|
2236 |
: !(data[0] in object)
|
|
|
2237 |
) {
|
|
|
2238 |
return false;
|
|
|
2239 |
}
|
|
|
2240 |
}
|
|
|
2241 |
while (++index < length) {
|
|
|
2242 |
data = matchData[index];
|
|
|
2243 |
var key = data[0],
|
|
|
2244 |
objValue = object[key],
|
|
|
2245 |
srcValue = data[1];
|
|
|
2246 |
|
|
|
2247 |
if (noCustomizer && data[2]) {
|
|
|
2248 |
if (objValue === undefined && !(key in object)) {
|
|
|
2249 |
return false;
|
|
|
2250 |
}
|
|
|
2251 |
} else {
|
|
|
2252 |
var result = customizer ? customizer(objValue, srcValue, key) : undefined;
|
|
|
2253 |
if (!(result === undefined ? baseIsEqual(srcValue, objValue, customizer, true) : result)) {
|
|
|
2254 |
return false;
|
|
|
2255 |
}
|
|
|
2256 |
}
|
|
|
2257 |
}
|
|
|
2258 |
return true;
|
|
|
2259 |
}
|
|
|
2260 |
|
|
|
2261 |
/**
|
|
|
2262 |
* The base implementation of `_.map` without support for callback shorthands
|
|
|
2263 |
* and `this` binding.
|
|
|
2264 |
*
|
|
|
2265 |
* @private
|
|
|
2266 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
|
2267 |
* @param {Function} iteratee The function invoked per iteration.
|
|
|
2268 |
* @returns {Array} Returns the new mapped array.
|
|
|
2269 |
*/
|
|
|
2270 |
function baseMap(collection, iteratee) {
|
|
|
2271 |
var index = -1,
|
|
|
2272 |
result = isArrayLike(collection) ? Array(collection.length) : [];
|
|
|
2273 |
|
|
|
2274 |
baseEach(collection, function(value, key, collection) {
|
|
|
2275 |
result[++index] = iteratee(value, key, collection);
|
|
|
2276 |
});
|
|
|
2277 |
return result;
|
|
|
2278 |
}
|
|
|
2279 |
|
|
|
2280 |
/**
|
|
|
2281 |
* The base implementation of `_.matches` which does not clone `source`.
|
|
|
2282 |
*
|
|
|
2283 |
* @private
|
|
|
2284 |
* @param {Object} source The object of property values to match.
|
|
|
2285 |
* @returns {Function} Returns the new function.
|
|
|
2286 |
*/
|
|
|
2287 |
function baseMatches(source) {
|
|
|
2288 |
var matchData = getMatchData(source);
|
|
|
2289 |
if (matchData.length == 1 && matchData[0][2]) {
|
|
|
2290 |
var key = matchData[0][0],
|
|
|
2291 |
value = matchData[0][1];
|
|
|
2292 |
|
|
|
2293 |
return function(object) {
|
|
|
2294 |
if (object == null) {
|
|
|
2295 |
return false;
|
|
|
2296 |
}
|
|
|
2297 |
return object[key] === value && (value !== undefined || (key in toObject(object)));
|
|
442
|
2298 |
};
|
|
498
|
2299 |
}
|
|
|
2300 |
return function(object) {
|
|
|
2301 |
return baseIsMatch(object, matchData);
|
|
|
2302 |
};
|
|
|
2303 |
}
|
|
|
2304 |
|
|
|
2305 |
/**
|
|
|
2306 |
* The base implementation of `_.matchesProperty` which does not clone `srcValue`.
|
|
|
2307 |
*
|
|
|
2308 |
* @private
|
|
|
2309 |
* @param {string} path The path of the property to get.
|
|
|
2310 |
* @param {*} srcValue The value to compare.
|
|
|
2311 |
* @returns {Function} Returns the new function.
|
|
|
2312 |
*/
|
|
|
2313 |
function baseMatchesProperty(path, srcValue) {
|
|
|
2314 |
var isArr = isArray(path),
|
|
|
2315 |
isCommon = isKey(path) && isStrictComparable(srcValue),
|
|
|
2316 |
pathKey = (path + '');
|
|
|
2317 |
|
|
|
2318 |
path = toPath(path);
|
|
|
2319 |
return function(object) {
|
|
|
2320 |
if (object == null) {
|
|
|
2321 |
return false;
|
|
|
2322 |
}
|
|
|
2323 |
var key = pathKey;
|
|
|
2324 |
object = toObject(object);
|
|
|
2325 |
if ((isArr || !isCommon) && !(key in object)) {
|
|
|
2326 |
object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1));
|
|
|
2327 |
if (object == null) {
|
|
|
2328 |
return false;
|
|
|
2329 |
}
|
|
|
2330 |
key = last(path);
|
|
|
2331 |
object = toObject(object);
|
|
|
2332 |
}
|
|
|
2333 |
return object[key] === srcValue
|
|
|
2334 |
? (srcValue !== undefined || (key in object))
|
|
|
2335 |
: baseIsEqual(srcValue, object[key], undefined, true);
|
|
|
2336 |
};
|
|
|
2337 |
}
|
|
|
2338 |
|
|
|
2339 |
/**
|
|
|
2340 |
* The base implementation of `_.merge` without support for argument juggling,
|
|
|
2341 |
* multiple sources, and `this` binding `customizer` functions.
|
|
|
2342 |
*
|
|
|
2343 |
* @private
|
|
|
2344 |
* @param {Object} object The destination object.
|
|
|
2345 |
* @param {Object} source The source object.
|
|
|
2346 |
* @param {Function} [customizer] The function to customize merged values.
|
|
|
2347 |
* @param {Array} [stackA=[]] Tracks traversed source objects.
|
|
|
2348 |
* @param {Array} [stackB=[]] Associates values with source counterparts.
|
|
|
2349 |
* @returns {Object} Returns `object`.
|
|
|
2350 |
*/
|
|
|
2351 |
function baseMerge(object, source, customizer, stackA, stackB) {
|
|
|
2352 |
if (!isObject(object)) {
|
|
|
2353 |
return object;
|
|
|
2354 |
}
|
|
|
2355 |
var isSrcArr = isArrayLike(source) && (isArray(source) || isTypedArray(source)),
|
|
|
2356 |
props = isSrcArr ? undefined : keys(source);
|
|
|
2357 |
|
|
|
2358 |
arrayEach(props || source, function(srcValue, key) {
|
|
|
2359 |
if (props) {
|
|
|
2360 |
key = srcValue;
|
|
|
2361 |
srcValue = source[key];
|
|
|
2362 |
}
|
|
|
2363 |
if (isObjectLike(srcValue)) {
|
|
|
2364 |
stackA || (stackA = []);
|
|
|
2365 |
stackB || (stackB = []);
|
|
|
2366 |
baseMergeDeep(object, source, key, baseMerge, customizer, stackA, stackB);
|
|
|
2367 |
}
|
|
|
2368 |
else {
|
|
|
2369 |
var value = object[key],
|
|
|
2370 |
result = customizer ? customizer(value, srcValue, key, object, source) : undefined,
|
|
|
2371 |
isCommon = result === undefined;
|
|
|
2372 |
|
|
|
2373 |
if (isCommon) {
|
|
|
2374 |
result = srcValue;
|
|
|
2375 |
}
|
|
|
2376 |
if ((result !== undefined || (isSrcArr && !(key in object))) &&
|
|
|
2377 |
(isCommon || (result === result ? (result !== value) : (value === value)))) {
|
|
|
2378 |
object[key] = result;
|
|
|
2379 |
}
|
|
|
2380 |
}
|
|
|
2381 |
});
|
|
|
2382 |
return object;
|
|
|
2383 |
}
|
|
|
2384 |
|
|
|
2385 |
/**
|
|
|
2386 |
* A specialized version of `baseMerge` for arrays and objects which performs
|
|
|
2387 |
* deep merges and tracks traversed objects enabling objects with circular
|
|
|
2388 |
* references to be merged.
|
|
|
2389 |
*
|
|
|
2390 |
* @private
|
|
|
2391 |
* @param {Object} object The destination object.
|
|
|
2392 |
* @param {Object} source The source object.
|
|
|
2393 |
* @param {string} key The key of the value to merge.
|
|
|
2394 |
* @param {Function} mergeFunc The function to merge values.
|
|
|
2395 |
* @param {Function} [customizer] The function to customize merged values.
|
|
|
2396 |
* @param {Array} [stackA=[]] Tracks traversed source objects.
|
|
|
2397 |
* @param {Array} [stackB=[]] Associates values with source counterparts.
|
|
|
2398 |
* @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
|
|
|
2399 |
*/
|
|
|
2400 |
function baseMergeDeep(object, source, key, mergeFunc, customizer, stackA, stackB) {
|
|
|
2401 |
var length = stackA.length,
|
|
|
2402 |
srcValue = source[key];
|
|
|
2403 |
|
|
|
2404 |
while (length--) {
|
|
|
2405 |
if (stackA[length] == srcValue) {
|
|
|
2406 |
object[key] = stackB[length];
|
|
|
2407 |
return;
|
|
|
2408 |
}
|
|
|
2409 |
}
|
|
|
2410 |
var value = object[key],
|
|
|
2411 |
result = customizer ? customizer(value, srcValue, key, object, source) : undefined,
|
|
|
2412 |
isCommon = result === undefined;
|
|
|
2413 |
|
|
|
2414 |
if (isCommon) {
|
|
|
2415 |
result = srcValue;
|
|
|
2416 |
if (isArrayLike(srcValue) && (isArray(srcValue) || isTypedArray(srcValue))) {
|
|
|
2417 |
result = isArray(value)
|
|
|
2418 |
? value
|
|
|
2419 |
: (isArrayLike(value) ? arrayCopy(value) : []);
|
|
|
2420 |
}
|
|
|
2421 |
else if (isPlainObject(srcValue) || isArguments(srcValue)) {
|
|
|
2422 |
result = isArguments(value)
|
|
|
2423 |
? toPlainObject(value)
|
|
|
2424 |
: (isPlainObject(value) ? value : {});
|
|
|
2425 |
}
|
|
|
2426 |
else {
|
|
|
2427 |
isCommon = false;
|
|
|
2428 |
}
|
|
|
2429 |
}
|
|
|
2430 |
// Add the source value to the stack of traversed objects and associate
|
|
|
2431 |
// it with its merged value.
|
|
|
2432 |
stackA.push(srcValue);
|
|
|
2433 |
stackB.push(result);
|
|
|
2434 |
|
|
|
2435 |
if (isCommon) {
|
|
|
2436 |
// Recursively merge objects and arrays (susceptible to call stack limits).
|
|
|
2437 |
object[key] = mergeFunc(result, srcValue, customizer, stackA, stackB);
|
|
|
2438 |
} else if (result === result ? (result !== value) : (value === value)) {
|
|
|
2439 |
object[key] = result;
|
|
|
2440 |
}
|
|
|
2441 |
}
|
|
|
2442 |
|
|
|
2443 |
/**
|
|
|
2444 |
* The base implementation of `_.property` without support for deep paths.
|
|
|
2445 |
*
|
|
|
2446 |
* @private
|
|
|
2447 |
* @param {string} key The key of the property to get.
|
|
|
2448 |
* @returns {Function} Returns the new function.
|
|
|
2449 |
*/
|
|
|
2450 |
function baseProperty(key) {
|
|
|
2451 |
return function(object) {
|
|
|
2452 |
return object == null ? undefined : object[key];
|
|
|
2453 |
};
|
|
|
2454 |
}
|
|
|
2455 |
|
|
|
2456 |
/**
|
|
|
2457 |
* A specialized version of `baseProperty` which supports deep paths.
|
|
|
2458 |
*
|
|
|
2459 |
* @private
|
|
|
2460 |
* @param {Array|string} path The path of the property to get.
|
|
|
2461 |
* @returns {Function} Returns the new function.
|
|
|
2462 |
*/
|
|
|
2463 |
function basePropertyDeep(path) {
|
|
|
2464 |
var pathKey = (path + '');
|
|
|
2465 |
path = toPath(path);
|
|
|
2466 |
return function(object) {
|
|
|
2467 |
return baseGet(object, path, pathKey);
|
|
|
2468 |
};
|
|
|
2469 |
}
|
|
|
2470 |
|
|
|
2471 |
/**
|
|
|
2472 |
* The base implementation of `_.pullAt` without support for individual
|
|
|
2473 |
* index arguments and capturing the removed elements.
|
|
|
2474 |
*
|
|
|
2475 |
* @private
|
|
|
2476 |
* @param {Array} array The array to modify.
|
|
|
2477 |
* @param {number[]} indexes The indexes of elements to remove.
|
|
|
2478 |
* @returns {Array} Returns `array`.
|
|
|
2479 |
*/
|
|
|
2480 |
function basePullAt(array, indexes) {
|
|
|
2481 |
var length = array ? indexes.length : 0;
|
|
|
2482 |
while (length--) {
|
|
|
2483 |
var index = indexes[length];
|
|
|
2484 |
if (index != previous && isIndex(index)) {
|
|
|
2485 |
var previous = index;
|
|
|
2486 |
splice.call(array, index, 1);
|
|
|
2487 |
}
|
|
|
2488 |
}
|
|
|
2489 |
return array;
|
|
|
2490 |
}
|
|
|
2491 |
|
|
|
2492 |
/**
|
|
|
2493 |
* The base implementation of `_.random` without support for argument juggling
|
|
|
2494 |
* and returning floating-point numbers.
|
|
|
2495 |
*
|
|
|
2496 |
* @private
|
|
|
2497 |
* @param {number} min The minimum possible value.
|
|
|
2498 |
* @param {number} max The maximum possible value.
|
|
|
2499 |
* @returns {number} Returns the random number.
|
|
|
2500 |
*/
|
|
|
2501 |
function baseRandom(min, max) {
|
|
|
2502 |
return min + nativeFloor(nativeRandom() * (max - min + 1));
|
|
|
2503 |
}
|
|
|
2504 |
|
|
|
2505 |
/**
|
|
|
2506 |
* The base implementation of `_.reduce` and `_.reduceRight` without support
|
|
|
2507 |
* for callback shorthands and `this` binding, which iterates over `collection`
|
|
|
2508 |
* using the provided `eachFunc`.
|
|
|
2509 |
*
|
|
|
2510 |
* @private
|
|
|
2511 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
|
2512 |
* @param {Function} iteratee The function invoked per iteration.
|
|
|
2513 |
* @param {*} accumulator The initial value.
|
|
|
2514 |
* @param {boolean} initFromCollection Specify using the first or last element
|
|
|
2515 |
* of `collection` as the initial value.
|
|
|
2516 |
* @param {Function} eachFunc The function to iterate over `collection`.
|
|
|
2517 |
* @returns {*} Returns the accumulated value.
|
|
|
2518 |
*/
|
|
|
2519 |
function baseReduce(collection, iteratee, accumulator, initFromCollection, eachFunc) {
|
|
|
2520 |
eachFunc(collection, function(value, index, collection) {
|
|
|
2521 |
accumulator = initFromCollection
|
|
|
2522 |
? (initFromCollection = false, value)
|
|
|
2523 |
: iteratee(accumulator, value, index, collection);
|
|
|
2524 |
});
|
|
|
2525 |
return accumulator;
|
|
|
2526 |
}
|
|
|
2527 |
|
|
|
2528 |
/**
|
|
|
2529 |
* The base implementation of `setData` without support for hot loop detection.
|
|
|
2530 |
*
|
|
|
2531 |
* @private
|
|
|
2532 |
* @param {Function} func The function to associate metadata with.
|
|
|
2533 |
* @param {*} data The metadata.
|
|
|
2534 |
* @returns {Function} Returns `func`.
|
|
|
2535 |
*/
|
|
|
2536 |
var baseSetData = !metaMap ? identity : function(func, data) {
|
|
|
2537 |
metaMap.set(func, data);
|
|
|
2538 |
return func;
|
|
|
2539 |
};
|
|
|
2540 |
|
|
|
2541 |
/**
|
|
|
2542 |
* The base implementation of `_.slice` without an iteratee call guard.
|
|
|
2543 |
*
|
|
|
2544 |
* @private
|
|
|
2545 |
* @param {Array} array The array to slice.
|
|
|
2546 |
* @param {number} [start=0] The start position.
|
|
|
2547 |
* @param {number} [end=array.length] The end position.
|
|
|
2548 |
* @returns {Array} Returns the slice of `array`.
|
|
|
2549 |
*/
|
|
|
2550 |
function baseSlice(array, start, end) {
|
|
|
2551 |
var index = -1,
|
|
|
2552 |
length = array.length;
|
|
|
2553 |
|
|
|
2554 |
start = start == null ? 0 : (+start || 0);
|
|
|
2555 |
if (start < 0) {
|
|
|
2556 |
start = -start > length ? 0 : (length + start);
|
|
|
2557 |
}
|
|
|
2558 |
end = (end === undefined || end > length) ? length : (+end || 0);
|
|
|
2559 |
if (end < 0) {
|
|
|
2560 |
end += length;
|
|
|
2561 |
}
|
|
|
2562 |
length = start > end ? 0 : ((end - start) >>> 0);
|
|
|
2563 |
start >>>= 0;
|
|
|
2564 |
|
|
|
2565 |
var result = Array(length);
|
|
|
2566 |
while (++index < length) {
|
|
|
2567 |
result[index] = array[index + start];
|
|
|
2568 |
}
|
|
|
2569 |
return result;
|
|
|
2570 |
}
|
|
|
2571 |
|
|
|
2572 |
/**
|
|
|
2573 |
* The base implementation of `_.some` without support for callback shorthands
|
|
|
2574 |
* and `this` binding.
|
|
|
2575 |
*
|
|
|
2576 |
* @private
|
|
|
2577 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
|
2578 |
* @param {Function} predicate The function invoked per iteration.
|
|
|
2579 |
* @returns {boolean} Returns `true` if any element passes the predicate check,
|
|
|
2580 |
* else `false`.
|
|
|
2581 |
*/
|
|
|
2582 |
function baseSome(collection, predicate) {
|
|
|
2583 |
var result;
|
|
|
2584 |
|
|
|
2585 |
baseEach(collection, function(value, index, collection) {
|
|
|
2586 |
result = predicate(value, index, collection);
|
|
|
2587 |
return !result;
|
|
|
2588 |
});
|
|
|
2589 |
return !!result;
|
|
|
2590 |
}
|
|
|
2591 |
|
|
|
2592 |
/**
|
|
|
2593 |
* The base implementation of `_.sortBy` which uses `comparer` to define
|
|
|
2594 |
* the sort order of `array` and replaces criteria objects with their
|
|
|
2595 |
* corresponding values.
|
|
|
2596 |
*
|
|
|
2597 |
* @private
|
|
|
2598 |
* @param {Array} array The array to sort.
|
|
|
2599 |
* @param {Function} comparer The function to define sort order.
|
|
|
2600 |
* @returns {Array} Returns `array`.
|
|
|
2601 |
*/
|
|
|
2602 |
function baseSortBy(array, comparer) {
|
|
|
2603 |
var length = array.length;
|
|
|
2604 |
|
|
|
2605 |
array.sort(comparer);
|
|
|
2606 |
while (length--) {
|
|
|
2607 |
array[length] = array[length].value;
|
|
|
2608 |
}
|
|
|
2609 |
return array;
|
|
|
2610 |
}
|
|
|
2611 |
|
|
|
2612 |
/**
|
|
|
2613 |
* The base implementation of `_.sortByOrder` without param guards.
|
|
|
2614 |
*
|
|
|
2615 |
* @private
|
|
|
2616 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
|
2617 |
* @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
|
|
|
2618 |
* @param {boolean[]} orders The sort orders of `iteratees`.
|
|
|
2619 |
* @returns {Array} Returns the new sorted array.
|
|
|
2620 |
*/
|
|
|
2621 |
function baseSortByOrder(collection, iteratees, orders) {
|
|
|
2622 |
var callback = getCallback(),
|
|
|
2623 |
index = -1;
|
|
|
2624 |
|
|
|
2625 |
iteratees = arrayMap(iteratees, function(iteratee) { return callback(iteratee); });
|
|
|
2626 |
|
|
|
2627 |
var result = baseMap(collection, function(value) {
|
|
|
2628 |
var criteria = arrayMap(iteratees, function(iteratee) { return iteratee(value); });
|
|
|
2629 |
return { 'criteria': criteria, 'index': ++index, 'value': value };
|
|
|
2630 |
});
|
|
|
2631 |
|
|
|
2632 |
return baseSortBy(result, function(object, other) {
|
|
|
2633 |
return compareMultiple(object, other, orders);
|
|
|
2634 |
});
|
|
|
2635 |
}
|
|
|
2636 |
|
|
|
2637 |
/**
|
|
|
2638 |
* The base implementation of `_.sum` without support for callback shorthands
|
|
|
2639 |
* and `this` binding.
|
|
|
2640 |
*
|
|
|
2641 |
* @private
|
|
|
2642 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
|
2643 |
* @param {Function} iteratee The function invoked per iteration.
|
|
|
2644 |
* @returns {number} Returns the sum.
|
|
|
2645 |
*/
|
|
|
2646 |
function baseSum(collection, iteratee) {
|
|
|
2647 |
var result = 0;
|
|
|
2648 |
baseEach(collection, function(value, index, collection) {
|
|
|
2649 |
result += +iteratee(value, index, collection) || 0;
|
|
|
2650 |
});
|
|
|
2651 |
return result;
|
|
|
2652 |
}
|
|
|
2653 |
|
|
|
2654 |
/**
|
|
|
2655 |
* The base implementation of `_.uniq` without support for callback shorthands
|
|
|
2656 |
* and `this` binding.
|
|
|
2657 |
*
|
|
|
2658 |
* @private
|
|
|
2659 |
* @param {Array} array The array to inspect.
|
|
|
2660 |
* @param {Function} [iteratee] The function invoked per iteration.
|
|
|
2661 |
* @returns {Array} Returns the new duplicate free array.
|
|
|
2662 |
*/
|
|
|
2663 |
function baseUniq(array, iteratee) {
|
|
|
2664 |
var index = -1,
|
|
|
2665 |
indexOf = getIndexOf(),
|
|
|
2666 |
length = array.length,
|
|
|
2667 |
isCommon = indexOf === baseIndexOf,
|
|
|
2668 |
isLarge = isCommon && length >= LARGE_ARRAY_SIZE,
|
|
|
2669 |
seen = isLarge ? createCache() : null,
|
|
|
2670 |
result = [];
|
|
|
2671 |
|
|
|
2672 |
if (seen) {
|
|
|
2673 |
indexOf = cacheIndexOf;
|
|
|
2674 |
isCommon = false;
|
|
|
2675 |
} else {
|
|
|
2676 |
isLarge = false;
|
|
|
2677 |
seen = iteratee ? [] : result;
|
|
|
2678 |
}
|
|
|
2679 |
outer:
|
|
|
2680 |
while (++index < length) {
|
|
|
2681 |
var value = array[index],
|
|
|
2682 |
computed = iteratee ? iteratee(value, index, array) : value;
|
|
|
2683 |
|
|
|
2684 |
if (isCommon && value === value) {
|
|
|
2685 |
var seenIndex = seen.length;
|
|
|
2686 |
while (seenIndex--) {
|
|
|
2687 |
if (seen[seenIndex] === computed) {
|
|
|
2688 |
continue outer;
|
|
|
2689 |
}
|
|
|
2690 |
}
|
|
|
2691 |
if (iteratee) {
|
|
|
2692 |
seen.push(computed);
|
|
|
2693 |
}
|
|
|
2694 |
result.push(value);
|
|
|
2695 |
}
|
|
|
2696 |
else if (indexOf(seen, computed, 0) < 0) {
|
|
|
2697 |
if (iteratee || isLarge) {
|
|
|
2698 |
seen.push(computed);
|
|
|
2699 |
}
|
|
|
2700 |
result.push(value);
|
|
|
2701 |
}
|
|
|
2702 |
}
|
|
|
2703 |
return result;
|
|
|
2704 |
}
|
|
|
2705 |
|
|
|
2706 |
/**
|
|
|
2707 |
* The base implementation of `_.values` and `_.valuesIn` which creates an
|
|
|
2708 |
* array of `object` property values corresponding to the property names
|
|
|
2709 |
* of `props`.
|
|
|
2710 |
*
|
|
|
2711 |
* @private
|
|
|
2712 |
* @param {Object} object The object to query.
|
|
|
2713 |
* @param {Array} props The property names to get values for.
|
|
|
2714 |
* @returns {Object} Returns the array of property values.
|
|
|
2715 |
*/
|
|
|
2716 |
function baseValues(object, props) {
|
|
|
2717 |
var index = -1,
|
|
|
2718 |
length = props.length,
|
|
|
2719 |
result = Array(length);
|
|
|
2720 |
|
|
|
2721 |
while (++index < length) {
|
|
|
2722 |
result[index] = object[props[index]];
|
|
|
2723 |
}
|
|
|
2724 |
return result;
|
|
|
2725 |
}
|
|
|
2726 |
|
|
|
2727 |
/**
|
|
|
2728 |
* The base implementation of `_.dropRightWhile`, `_.dropWhile`, `_.takeRightWhile`,
|
|
|
2729 |
* and `_.takeWhile` without support for callback shorthands and `this` binding.
|
|
|
2730 |
*
|
|
|
2731 |
* @private
|
|
|
2732 |
* @param {Array} array The array to query.
|
|
|
2733 |
* @param {Function} predicate The function invoked per iteration.
|
|
|
2734 |
* @param {boolean} [isDrop] Specify dropping elements instead of taking them.
|
|
|
2735 |
* @param {boolean} [fromRight] Specify iterating from right to left.
|
|
|
2736 |
* @returns {Array} Returns the slice of `array`.
|
|
|
2737 |
*/
|
|
|
2738 |
function baseWhile(array, predicate, isDrop, fromRight) {
|
|
|
2739 |
var length = array.length,
|
|
|
2740 |
index = fromRight ? length : -1;
|
|
|
2741 |
|
|
|
2742 |
while ((fromRight ? index-- : ++index < length) && predicate(array[index], index, array)) {}
|
|
|
2743 |
return isDrop
|
|
|
2744 |
? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))
|
|
|
2745 |
: baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));
|
|
|
2746 |
}
|
|
|
2747 |
|
|
|
2748 |
/**
|
|
|
2749 |
* The base implementation of `wrapperValue` which returns the result of
|
|
|
2750 |
* performing a sequence of actions on the unwrapped `value`, where each
|
|
|
2751 |
* successive action is supplied the return value of the previous.
|
|
|
2752 |
*
|
|
|
2753 |
* @private
|
|
|
2754 |
* @param {*} value The unwrapped value.
|
|
|
2755 |
* @param {Array} actions Actions to peform to resolve the unwrapped value.
|
|
|
2756 |
* @returns {*} Returns the resolved value.
|
|
|
2757 |
*/
|
|
|
2758 |
function baseWrapperValue(value, actions) {
|
|
|
2759 |
var result = value;
|
|
|
2760 |
if (result instanceof LazyWrapper) {
|
|
|
2761 |
result = result.value();
|
|
|
2762 |
}
|
|
|
2763 |
var index = -1,
|
|
|
2764 |
length = actions.length;
|
|
|
2765 |
|
|
|
2766 |
while (++index < length) {
|
|
|
2767 |
var action = actions[index];
|
|
|
2768 |
result = action.func.apply(action.thisArg, arrayPush([result], action.args));
|
|
|
2769 |
}
|
|
|
2770 |
return result;
|
|
|
2771 |
}
|
|
|
2772 |
|
|
|
2773 |
/**
|
|
|
2774 |
* Performs a binary search of `array` to determine the index at which `value`
|
|
|
2775 |
* should be inserted into `array` in order to maintain its sort order.
|
|
|
2776 |
*
|
|
|
2777 |
* @private
|
|
|
2778 |
* @param {Array} array The sorted array to inspect.
|
|
|
2779 |
* @param {*} value The value to evaluate.
|
|
|
2780 |
* @param {boolean} [retHighest] Specify returning the highest qualified index.
|
|
|
2781 |
* @returns {number} Returns the index at which `value` should be inserted
|
|
|
2782 |
* into `array`.
|
|
|
2783 |
*/
|
|
|
2784 |
function binaryIndex(array, value, retHighest) {
|
|
|
2785 |
var low = 0,
|
|
|
2786 |
high = array ? array.length : low;
|
|
|
2787 |
|
|
|
2788 |
if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {
|
|
|
2789 |
while (low < high) {
|
|
|
2790 |
var mid = (low + high) >>> 1,
|
|
|
2791 |
computed = array[mid];
|
|
|
2792 |
|
|
|
2793 |
if ((retHighest ? (computed <= value) : (computed < value)) && computed !== null) {
|
|
|
2794 |
low = mid + 1;
|
|
|
2795 |
} else {
|
|
|
2796 |
high = mid;
|
|
|
2797 |
}
|
|
|
2798 |
}
|
|
|
2799 |
return high;
|
|
|
2800 |
}
|
|
|
2801 |
return binaryIndexBy(array, value, identity, retHighest);
|
|
|
2802 |
}
|
|
|
2803 |
|
|
|
2804 |
/**
|
|
|
2805 |
* This function is like `binaryIndex` except that it invokes `iteratee` for
|
|
|
2806 |
* `value` and each element of `array` to compute their sort ranking. The
|
|
|
2807 |
* iteratee is invoked with one argument; (value).
|
|
|
2808 |
*
|
|
|
2809 |
* @private
|
|
|
2810 |
* @param {Array} array The sorted array to inspect.
|
|
|
2811 |
* @param {*} value The value to evaluate.
|
|
|
2812 |
* @param {Function} iteratee The function invoked per iteration.
|
|
|
2813 |
* @param {boolean} [retHighest] Specify returning the highest qualified index.
|
|
|
2814 |
* @returns {number} Returns the index at which `value` should be inserted
|
|
|
2815 |
* into `array`.
|
|
|
2816 |
*/
|
|
|
2817 |
function binaryIndexBy(array, value, iteratee, retHighest) {
|
|
|
2818 |
value = iteratee(value);
|
|
|
2819 |
|
|
|
2820 |
var low = 0,
|
|
|
2821 |
high = array ? array.length : 0,
|
|
|
2822 |
valIsNaN = value !== value,
|
|
|
2823 |
valIsNull = value === null,
|
|
|
2824 |
valIsUndef = value === undefined;
|
|
|
2825 |
|
|
|
2826 |
while (low < high) {
|
|
|
2827 |
var mid = nativeFloor((low + high) / 2),
|
|
|
2828 |
computed = iteratee(array[mid]),
|
|
|
2829 |
isDef = computed !== undefined,
|
|
|
2830 |
isReflexive = computed === computed;
|
|
|
2831 |
|
|
|
2832 |
if (valIsNaN) {
|
|
|
2833 |
var setLow = isReflexive || retHighest;
|
|
|
2834 |
} else if (valIsNull) {
|
|
|
2835 |
setLow = isReflexive && isDef && (retHighest || computed != null);
|
|
|
2836 |
} else if (valIsUndef) {
|
|
|
2837 |
setLow = isReflexive && (retHighest || isDef);
|
|
|
2838 |
} else if (computed == null) {
|
|
|
2839 |
setLow = false;
|
|
|
2840 |
} else {
|
|
|
2841 |
setLow = retHighest ? (computed <= value) : (computed < value);
|
|
|
2842 |
}
|
|
|
2843 |
if (setLow) {
|
|
|
2844 |
low = mid + 1;
|
|
|
2845 |
} else {
|
|
|
2846 |
high = mid;
|
|
|
2847 |
}
|
|
|
2848 |
}
|
|
|
2849 |
return nativeMin(high, MAX_ARRAY_INDEX);
|
|
|
2850 |
}
|
|
|
2851 |
|
|
|
2852 |
/**
|
|
|
2853 |
* A specialized version of `baseCallback` which only supports `this` binding
|
|
|
2854 |
* and specifying the number of arguments to provide to `func`.
|
|
|
2855 |
*
|
|
|
2856 |
* @private
|
|
|
2857 |
* @param {Function} func The function to bind.
|
|
|
2858 |
* @param {*} thisArg The `this` binding of `func`.
|
|
|
2859 |
* @param {number} [argCount] The number of arguments to provide to `func`.
|
|
|
2860 |
* @returns {Function} Returns the callback.
|
|
|
2861 |
*/
|
|
|
2862 |
function bindCallback(func, thisArg, argCount) {
|
|
442
|
2863 |
if (typeof func != 'function') {
|
|
|
2864 |
return identity;
|
|
|
2865 |
}
|
|
498
|
2866 |
if (thisArg === undefined) {
|
|
442
|
2867 |
return func;
|
|
|
2868 |
}
|
|
|
2869 |
switch (argCount) {
|
|
|
2870 |
case 1: return function(value) {
|
|
|
2871 |
return func.call(thisArg, value);
|
|
|
2872 |
};
|
|
|
2873 |
case 3: return function(value, index, collection) {
|
|
|
2874 |
return func.call(thisArg, value, index, collection);
|
|
|
2875 |
};
|
|
|
2876 |
case 4: return function(accumulator, value, index, collection) {
|
|
|
2877 |
return func.call(thisArg, accumulator, value, index, collection);
|
|
|
2878 |
};
|
|
498
|
2879 |
case 5: return function(value, other, key, object, source) {
|
|
|
2880 |
return func.call(thisArg, value, other, key, object, source);
|
|
|
2881 |
};
|
|
|
2882 |
}
|
|
|
2883 |
return function() {
|
|
|
2884 |
return func.apply(thisArg, arguments);
|
|
|
2885 |
};
|
|
|
2886 |
}
|
|
|
2887 |
|
|
|
2888 |
/**
|
|
|
2889 |
* Creates a clone of the given array buffer.
|
|
|
2890 |
*
|
|
|
2891 |
* @private
|
|
|
2892 |
* @param {ArrayBuffer} buffer The array buffer to clone.
|
|
|
2893 |
* @returns {ArrayBuffer} Returns the cloned array buffer.
|
|
|
2894 |
*/
|
|
|
2895 |
function bufferClone(buffer) {
|
|
|
2896 |
var result = new ArrayBuffer(buffer.byteLength),
|
|
|
2897 |
view = new Uint8Array(result);
|
|
|
2898 |
|
|
|
2899 |
view.set(new Uint8Array(buffer));
|
|
442
|
2900 |
return result;
|
|
|
2901 |
}
|
|
|
2902 |
|
|
|
2903 |
/**
|
|
498
|
2904 |
* Creates an array that is the composition of partially applied arguments,
|
|
|
2905 |
* placeholders, and provided arguments into a single array of arguments.
|
|
|
2906 |
*
|
|
|
2907 |
* @private
|
|
|
2908 |
* @param {Array|Object} args The provided arguments.
|
|
|
2909 |
* @param {Array} partials The arguments to prepend to those provided.
|
|
|
2910 |
* @param {Array} holders The `partials` placeholder indexes.
|
|
|
2911 |
* @returns {Array} Returns the new array of composed arguments.
|
|
|
2912 |
*/
|
|
|
2913 |
function composeArgs(args, partials, holders) {
|
|
|
2914 |
var holdersLength = holders.length,
|
|
|
2915 |
argsIndex = -1,
|
|
|
2916 |
argsLength = nativeMax(args.length - holdersLength, 0),
|
|
|
2917 |
leftIndex = -1,
|
|
|
2918 |
leftLength = partials.length,
|
|
|
2919 |
result = Array(leftLength + argsLength);
|
|
|
2920 |
|
|
|
2921 |
while (++leftIndex < leftLength) {
|
|
|
2922 |
result[leftIndex] = partials[leftIndex];
|
|
|
2923 |
}
|
|
|
2924 |
while (++argsIndex < holdersLength) {
|
|
|
2925 |
result[holders[argsIndex]] = args[argsIndex];
|
|
|
2926 |
}
|
|
|
2927 |
while (argsLength--) {
|
|
|
2928 |
result[leftIndex++] = args[argsIndex++];
|
|
442
|
2929 |
}
|
|
|
2930 |
return result;
|
|
|
2931 |
}
|
|
|
2932 |
|
|
|
2933 |
/**
|
|
498
|
2934 |
* This function is like `composeArgs` except that the arguments composition
|
|
|
2935 |
* is tailored for `_.partialRight`.
|
|
|
2936 |
*
|
|
|
2937 |
* @private
|
|
|
2938 |
* @param {Array|Object} args The provided arguments.
|
|
|
2939 |
* @param {Array} partials The arguments to append to those provided.
|
|
|
2940 |
* @param {Array} holders The `partials` placeholder indexes.
|
|
|
2941 |
* @returns {Array} Returns the new array of composed arguments.
|
|
|
2942 |
*/
|
|
|
2943 |
function composeArgsRight(args, partials, holders) {
|
|
|
2944 |
var holdersIndex = -1,
|
|
|
2945 |
holdersLength = holders.length,
|
|
|
2946 |
argsIndex = -1,
|
|
|
2947 |
argsLength = nativeMax(args.length - holdersLength, 0),
|
|
|
2948 |
rightIndex = -1,
|
|
|
2949 |
rightLength = partials.length,
|
|
|
2950 |
result = Array(argsLength + rightLength);
|
|
|
2951 |
|
|
|
2952 |
while (++argsIndex < argsLength) {
|
|
|
2953 |
result[argsIndex] = args[argsIndex];
|
|
|
2954 |
}
|
|
|
2955 |
var offset = argsIndex;
|
|
|
2956 |
while (++rightIndex < rightLength) {
|
|
|
2957 |
result[offset + rightIndex] = partials[rightIndex];
|
|
|
2958 |
}
|
|
|
2959 |
while (++holdersIndex < holdersLength) {
|
|
|
2960 |
result[offset + holders[holdersIndex]] = args[argsIndex++];
|
|
442
|
2961 |
}
|
|
|
2962 |
return result;
|
|
|
2963 |
}
|
|
|
2964 |
|
|
|
2965 |
/**
|
|
498
|
2966 |
* Creates a `_.countBy`, `_.groupBy`, `_.indexBy`, or `_.partition` function.
|
|
|
2967 |
*
|
|
|
2968 |
* @private
|
|
|
2969 |
* @param {Function} setter The function to set keys and values of the accumulator object.
|
|
|
2970 |
* @param {Function} [initializer] The function to initialize the accumulator object.
|
|
442
|
2971 |
* @returns {Function} Returns the new aggregator function.
|
|
|
2972 |
*/
|
|
498
|
2973 |
function createAggregator(setter, initializer) {
|
|
|
2974 |
return function(collection, iteratee, thisArg) {
|
|
|
2975 |
var result = initializer ? initializer() : {};
|
|
|
2976 |
iteratee = getCallback(iteratee, thisArg, 3);
|
|
|
2977 |
|
|
|
2978 |
if (isArray(collection)) {
|
|
|
2979 |
var index = -1,
|
|
|
2980 |
length = collection.length;
|
|
|
2981 |
|
|
442
|
2982 |
while (++index < length) {
|
|
|
2983 |
var value = collection[index];
|
|
498
|
2984 |
setter(result, value, iteratee(value, index, collection), collection);
|
|
442
|
2985 |
}
|
|
|
2986 |
} else {
|
|
498
|
2987 |
baseEach(collection, function(value, key, collection) {
|
|
|
2988 |
setter(result, value, iteratee(value, key, collection), collection);
|
|
442
|
2989 |
});
|
|
|
2990 |
}
|
|
|
2991 |
return result;
|
|
|
2992 |
};
|
|
|
2993 |
}
|
|
|
2994 |
|
|
|
2995 |
/**
|
|
498
|
2996 |
* Creates a `_.assign`, `_.defaults`, or `_.merge` function.
|
|
|
2997 |
*
|
|
|
2998 |
* @private
|
|
|
2999 |
* @param {Function} assigner The function to assign values.
|
|
|
3000 |
* @returns {Function} Returns the new assigner function.
|
|
|
3001 |
*/
|
|
|
3002 |
function createAssigner(assigner) {
|
|
|
3003 |
return restParam(function(object, sources) {
|
|
|
3004 |
var index = -1,
|
|
|
3005 |
length = object == null ? 0 : sources.length,
|
|
|
3006 |
customizer = length > 2 ? sources[length - 2] : undefined,
|
|
|
3007 |
guard = length > 2 ? sources[2] : undefined,
|
|
|
3008 |
thisArg = length > 1 ? sources[length - 1] : undefined;
|
|
|
3009 |
|
|
|
3010 |
if (typeof customizer == 'function') {
|
|
|
3011 |
customizer = bindCallback(customizer, thisArg, 5);
|
|
|
3012 |
length -= 2;
|
|
|
3013 |
} else {
|
|
|
3014 |
customizer = typeof thisArg == 'function' ? thisArg : undefined;
|
|
|
3015 |
length -= (customizer ? 1 : 0);
|
|
|
3016 |
}
|
|
|
3017 |
if (guard && isIterateeCall(sources[0], sources[1], guard)) {
|
|
|
3018 |
customizer = length < 3 ? undefined : customizer;
|
|
|
3019 |
length = 1;
|
|
|
3020 |
}
|
|
|
3021 |
while (++index < length) {
|
|
|
3022 |
var source = sources[index];
|
|
|
3023 |
if (source) {
|
|
|
3024 |
assigner(object, source, customizer);
|
|
|
3025 |
}
|
|
|
3026 |
}
|
|
|
3027 |
return object;
|
|
|
3028 |
});
|
|
|
3029 |
}
|
|
|
3030 |
|
|
|
3031 |
/**
|
|
|
3032 |
* Creates a `baseEach` or `baseEachRight` function.
|
|
|
3033 |
*
|
|
|
3034 |
* @private
|
|
|
3035 |
* @param {Function} eachFunc The function to iterate over a collection.
|
|
|
3036 |
* @param {boolean} [fromRight] Specify iterating from right to left.
|
|
|
3037 |
* @returns {Function} Returns the new base function.
|
|
|
3038 |
*/
|
|
|
3039 |
function createBaseEach(eachFunc, fromRight) {
|
|
|
3040 |
return function(collection, iteratee) {
|
|
|
3041 |
var length = collection ? getLength(collection) : 0;
|
|
|
3042 |
if (!isLength(length)) {
|
|
|
3043 |
return eachFunc(collection, iteratee);
|
|
|
3044 |
}
|
|
|
3045 |
var index = fromRight ? length : -1,
|
|
|
3046 |
iterable = toObject(collection);
|
|
|
3047 |
|
|
|
3048 |
while ((fromRight ? index-- : ++index < length)) {
|
|
|
3049 |
if (iteratee(iterable[index], index, iterable) === false) {
|
|
|
3050 |
break;
|
|
|
3051 |
}
|
|
|
3052 |
}
|
|
|
3053 |
return collection;
|
|
|
3054 |
};
|
|
|
3055 |
}
|
|
|
3056 |
|
|
|
3057 |
/**
|
|
|
3058 |
* Creates a base function for `_.forIn` or `_.forInRight`.
|
|
|
3059 |
*
|
|
|
3060 |
* @private
|
|
|
3061 |
* @param {boolean} [fromRight] Specify iterating from right to left.
|
|
|
3062 |
* @returns {Function} Returns the new base function.
|
|
|
3063 |
*/
|
|
|
3064 |
function createBaseFor(fromRight) {
|
|
|
3065 |
return function(object, iteratee, keysFunc) {
|
|
|
3066 |
var iterable = toObject(object),
|
|
|
3067 |
props = keysFunc(object),
|
|
|
3068 |
length = props.length,
|
|
|
3069 |
index = fromRight ? length : -1;
|
|
|
3070 |
|
|
|
3071 |
while ((fromRight ? index-- : ++index < length)) {
|
|
|
3072 |
var key = props[index];
|
|
|
3073 |
if (iteratee(iterable[key], key, iterable) === false) {
|
|
|
3074 |
break;
|
|
|
3075 |
}
|
|
|
3076 |
}
|
|
|
3077 |
return object;
|
|
|
3078 |
};
|
|
|
3079 |
}
|
|
|
3080 |
|
|
|
3081 |
/**
|
|
|
3082 |
* Creates a function that wraps `func` and invokes it with the `this`
|
|
|
3083 |
* binding of `thisArg`.
|
|
|
3084 |
*
|
|
|
3085 |
* @private
|
|
|
3086 |
* @param {Function} func The function to bind.
|
|
|
3087 |
* @param {*} [thisArg] The `this` binding of `func`.
|
|
|
3088 |
* @returns {Function} Returns the new bound function.
|
|
|
3089 |
*/
|
|
|
3090 |
function createBindWrapper(func, thisArg) {
|
|
|
3091 |
var Ctor = createCtorWrapper(func);
|
|
|
3092 |
|
|
|
3093 |
function wrapper() {
|
|
|
3094 |
var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
|
|
|
3095 |
return fn.apply(thisArg, arguments);
|
|
|
3096 |
}
|
|
|
3097 |
return wrapper;
|
|
|
3098 |
}
|
|
|
3099 |
|
|
|
3100 |
/**
|
|
|
3101 |
* Creates a `Set` cache object to optimize linear searches of large arrays.
|
|
|
3102 |
*
|
|
|
3103 |
* @private
|
|
|
3104 |
* @param {Array} [values] The values to cache.
|
|
|
3105 |
* @returns {null|Object} Returns the new cache object if `Set` is supported, else `null`.
|
|
|
3106 |
*/
|
|
|
3107 |
function createCache(values) {
|
|
|
3108 |
return (nativeCreate && Set) ? new SetCache(values) : null;
|
|
|
3109 |
}
|
|
|
3110 |
|
|
|
3111 |
/**
|
|
|
3112 |
* Creates a function that produces compound words out of the words in a
|
|
|
3113 |
* given string.
|
|
|
3114 |
*
|
|
|
3115 |
* @private
|
|
|
3116 |
* @param {Function} callback The function to combine each word.
|
|
|
3117 |
* @returns {Function} Returns the new compounder function.
|
|
|
3118 |
*/
|
|
|
3119 |
function createCompounder(callback) {
|
|
|
3120 |
return function(string) {
|
|
|
3121 |
var index = -1,
|
|
|
3122 |
array = words(deburr(string)),
|
|
|
3123 |
length = array.length,
|
|
|
3124 |
result = '';
|
|
|
3125 |
|
|
|
3126 |
while (++index < length) {
|
|
|
3127 |
result = callback(result, array[index], index);
|
|
|
3128 |
}
|
|
|
3129 |
return result;
|
|
|
3130 |
};
|
|
|
3131 |
}
|
|
|
3132 |
|
|
|
3133 |
/**
|
|
|
3134 |
* Creates a function that produces an instance of `Ctor` regardless of
|
|
|
3135 |
* whether it was invoked as part of a `new` expression or by `call` or `apply`.
|
|
|
3136 |
*
|
|
|
3137 |
* @private
|
|
|
3138 |
* @param {Function} Ctor The constructor to wrap.
|
|
|
3139 |
* @returns {Function} Returns the new wrapped function.
|
|
|
3140 |
*/
|
|
|
3141 |
function createCtorWrapper(Ctor) {
|
|
|
3142 |
return function() {
|
|
|
3143 |
// Use a `switch` statement to work with class constructors.
|
|
|
3144 |
// See http://ecma-international.org/ecma-262/6.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
|
|
|
3145 |
// for more details.
|
|
|
3146 |
var args = arguments;
|
|
|
3147 |
switch (args.length) {
|
|
|
3148 |
case 0: return new Ctor;
|
|
|
3149 |
case 1: return new Ctor(args[0]);
|
|
|
3150 |
case 2: return new Ctor(args[0], args[1]);
|
|
|
3151 |
case 3: return new Ctor(args[0], args[1], args[2]);
|
|
|
3152 |
case 4: return new Ctor(args[0], args[1], args[2], args[3]);
|
|
|
3153 |
case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);
|
|
|
3154 |
case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);
|
|
|
3155 |
case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);
|
|
|
3156 |
}
|
|
|
3157 |
var thisBinding = baseCreate(Ctor.prototype),
|
|
|
3158 |
result = Ctor.apply(thisBinding, args);
|
|
|
3159 |
|
|
|
3160 |
// Mimic the constructor's `return` behavior.
|
|
|
3161 |
// See https://es5.github.io/#x13.2.2 for more details.
|
|
|
3162 |
return isObject(result) ? result : thisBinding;
|
|
|
3163 |
};
|
|
|
3164 |
}
|
|
|
3165 |
|
|
|
3166 |
/**
|
|
|
3167 |
* Creates a `_.curry` or `_.curryRight` function.
|
|
|
3168 |
*
|
|
|
3169 |
* @private
|
|
|
3170 |
* @param {boolean} flag The curry bit flag.
|
|
|
3171 |
* @returns {Function} Returns the new curry function.
|
|
|
3172 |
*/
|
|
|
3173 |
function createCurry(flag) {
|
|
|
3174 |
function curryFunc(func, arity, guard) {
|
|
|
3175 |
if (guard && isIterateeCall(func, arity, guard)) {
|
|
|
3176 |
arity = undefined;
|
|
|
3177 |
}
|
|
|
3178 |
var result = createWrapper(func, flag, undefined, undefined, undefined, undefined, undefined, arity);
|
|
|
3179 |
result.placeholder = curryFunc.placeholder;
|
|
|
3180 |
return result;
|
|
|
3181 |
}
|
|
|
3182 |
return curryFunc;
|
|
|
3183 |
}
|
|
|
3184 |
|
|
|
3185 |
/**
|
|
|
3186 |
* Creates a `_.defaults` or `_.defaultsDeep` function.
|
|
|
3187 |
*
|
|
|
3188 |
* @private
|
|
|
3189 |
* @param {Function} assigner The function to assign values.
|
|
|
3190 |
* @param {Function} customizer The function to customize assigned values.
|
|
|
3191 |
* @returns {Function} Returns the new defaults function.
|
|
|
3192 |
*/
|
|
|
3193 |
function createDefaults(assigner, customizer) {
|
|
|
3194 |
return restParam(function(args) {
|
|
|
3195 |
var object = args[0];
|
|
|
3196 |
if (object == null) {
|
|
|
3197 |
return object;
|
|
|
3198 |
}
|
|
|
3199 |
args.push(customizer);
|
|
|
3200 |
return assigner.apply(undefined, args);
|
|
|
3201 |
});
|
|
|
3202 |
}
|
|
|
3203 |
|
|
|
3204 |
/**
|
|
|
3205 |
* Creates a `_.max` or `_.min` function.
|
|
|
3206 |
*
|
|
|
3207 |
* @private
|
|
|
3208 |
* @param {Function} comparator The function used to compare values.
|
|
|
3209 |
* @param {*} exValue The initial extremum value.
|
|
|
3210 |
* @returns {Function} Returns the new extremum function.
|
|
|
3211 |
*/
|
|
|
3212 |
function createExtremum(comparator, exValue) {
|
|
|
3213 |
return function(collection, iteratee, thisArg) {
|
|
|
3214 |
if (thisArg && isIterateeCall(collection, iteratee, thisArg)) {
|
|
|
3215 |
iteratee = undefined;
|
|
|
3216 |
}
|
|
|
3217 |
iteratee = getCallback(iteratee, thisArg, 3);
|
|
|
3218 |
if (iteratee.length == 1) {
|
|
|
3219 |
collection = isArray(collection) ? collection : toIterable(collection);
|
|
|
3220 |
var result = arrayExtremum(collection, iteratee, comparator, exValue);
|
|
|
3221 |
if (!(collection.length && result === exValue)) {
|
|
|
3222 |
return result;
|
|
|
3223 |
}
|
|
|
3224 |
}
|
|
|
3225 |
return baseExtremum(collection, iteratee, comparator, exValue);
|
|
|
3226 |
};
|
|
|
3227 |
}
|
|
|
3228 |
|
|
|
3229 |
/**
|
|
|
3230 |
* Creates a `_.find` or `_.findLast` function.
|
|
|
3231 |
*
|
|
|
3232 |
* @private
|
|
|
3233 |
* @param {Function} eachFunc The function to iterate over a collection.
|
|
|
3234 |
* @param {boolean} [fromRight] Specify iterating from right to left.
|
|
|
3235 |
* @returns {Function} Returns the new find function.
|
|
|
3236 |
*/
|
|
|
3237 |
function createFind(eachFunc, fromRight) {
|
|
|
3238 |
return function(collection, predicate, thisArg) {
|
|
|
3239 |
predicate = getCallback(predicate, thisArg, 3);
|
|
|
3240 |
if (isArray(collection)) {
|
|
|
3241 |
var index = baseFindIndex(collection, predicate, fromRight);
|
|
|
3242 |
return index > -1 ? collection[index] : undefined;
|
|
|
3243 |
}
|
|
|
3244 |
return baseFind(collection, predicate, eachFunc);
|
|
|
3245 |
};
|
|
|
3246 |
}
|
|
|
3247 |
|
|
|
3248 |
/**
|
|
|
3249 |
* Creates a `_.findIndex` or `_.findLastIndex` function.
|
|
|
3250 |
*
|
|
|
3251 |
* @private
|
|
|
3252 |
* @param {boolean} [fromRight] Specify iterating from right to left.
|
|
|
3253 |
* @returns {Function} Returns the new find function.
|
|
|
3254 |
*/
|
|
|
3255 |
function createFindIndex(fromRight) {
|
|
|
3256 |
return function(array, predicate, thisArg) {
|
|
|
3257 |
if (!(array && array.length)) {
|
|
|
3258 |
return -1;
|
|
|
3259 |
}
|
|
|
3260 |
predicate = getCallback(predicate, thisArg, 3);
|
|
|
3261 |
return baseFindIndex(array, predicate, fromRight);
|
|
|
3262 |
};
|
|
|
3263 |
}
|
|
|
3264 |
|
|
|
3265 |
/**
|
|
|
3266 |
* Creates a `_.findKey` or `_.findLastKey` function.
|
|
|
3267 |
*
|
|
|
3268 |
* @private
|
|
|
3269 |
* @param {Function} objectFunc The function to iterate over an object.
|
|
|
3270 |
* @returns {Function} Returns the new find function.
|
|
|
3271 |
*/
|
|
|
3272 |
function createFindKey(objectFunc) {
|
|
|
3273 |
return function(object, predicate, thisArg) {
|
|
|
3274 |
predicate = getCallback(predicate, thisArg, 3);
|
|
|
3275 |
return baseFind(object, predicate, objectFunc, true);
|
|
|
3276 |
};
|
|
|
3277 |
}
|
|
|
3278 |
|
|
|
3279 |
/**
|
|
|
3280 |
* Creates a `_.flow` or `_.flowRight` function.
|
|
|
3281 |
*
|
|
|
3282 |
* @private
|
|
|
3283 |
* @param {boolean} [fromRight] Specify iterating from right to left.
|
|
|
3284 |
* @returns {Function} Returns the new flow function.
|
|
|
3285 |
*/
|
|
|
3286 |
function createFlow(fromRight) {
|
|
|
3287 |
return function() {
|
|
|
3288 |
var wrapper,
|
|
|
3289 |
length = arguments.length,
|
|
|
3290 |
index = fromRight ? length : -1,
|
|
|
3291 |
leftIndex = 0,
|
|
|
3292 |
funcs = Array(length);
|
|
|
3293 |
|
|
|
3294 |
while ((fromRight ? index-- : ++index < length)) {
|
|
|
3295 |
var func = funcs[leftIndex++] = arguments[index];
|
|
|
3296 |
if (typeof func != 'function') {
|
|
|
3297 |
throw new TypeError(FUNC_ERROR_TEXT);
|
|
|
3298 |
}
|
|
|
3299 |
if (!wrapper && LodashWrapper.prototype.thru && getFuncName(func) == 'wrapper') {
|
|
|
3300 |
wrapper = new LodashWrapper([], true);
|
|
|
3301 |
}
|
|
|
3302 |
}
|
|
|
3303 |
index = wrapper ? -1 : length;
|
|
|
3304 |
while (++index < length) {
|
|
|
3305 |
func = funcs[index];
|
|
|
3306 |
|
|
|
3307 |
var funcName = getFuncName(func),
|
|
|
3308 |
data = funcName == 'wrapper' ? getData(func) : undefined;
|
|
|
3309 |
|
|
|
3310 |
if (data && isLaziable(data[0]) && data[1] == (ARY_FLAG | CURRY_FLAG | PARTIAL_FLAG | REARG_FLAG) && !data[4].length && data[9] == 1) {
|
|
|
3311 |
wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);
|
|
|
3312 |
} else {
|
|
|
3313 |
wrapper = (func.length == 1 && isLaziable(func)) ? wrapper[funcName]() : wrapper.thru(func);
|
|
|
3314 |
}
|
|
|
3315 |
}
|
|
|
3316 |
return function() {
|
|
|
3317 |
var args = arguments,
|
|
|
3318 |
value = args[0];
|
|
|
3319 |
|
|
|
3320 |
if (wrapper && args.length == 1 && isArray(value) && value.length >= LARGE_ARRAY_SIZE) {
|
|
|
3321 |
return wrapper.plant(value).value();
|
|
|
3322 |
}
|
|
|
3323 |
var index = 0,
|
|
|
3324 |
result = length ? funcs[index].apply(this, args) : value;
|
|
|
3325 |
|
|
|
3326 |
while (++index < length) {
|
|
|
3327 |
result = funcs[index].call(this, result);
|
|
|
3328 |
}
|
|
|
3329 |
return result;
|
|
|
3330 |
};
|
|
|
3331 |
};
|
|
|
3332 |
}
|
|
|
3333 |
|
|
|
3334 |
/**
|
|
|
3335 |
* Creates a function for `_.forEach` or `_.forEachRight`.
|
|
|
3336 |
*
|
|
|
3337 |
* @private
|
|
|
3338 |
* @param {Function} arrayFunc The function to iterate over an array.
|
|
|
3339 |
* @param {Function} eachFunc The function to iterate over a collection.
|
|
|
3340 |
* @returns {Function} Returns the new each function.
|
|
|
3341 |
*/
|
|
|
3342 |
function createForEach(arrayFunc, eachFunc) {
|
|
|
3343 |
return function(collection, iteratee, thisArg) {
|
|
|
3344 |
return (typeof iteratee == 'function' && thisArg === undefined && isArray(collection))
|
|
|
3345 |
? arrayFunc(collection, iteratee)
|
|
|
3346 |
: eachFunc(collection, bindCallback(iteratee, thisArg, 3));
|
|
|
3347 |
};
|
|
|
3348 |
}
|
|
|
3349 |
|
|
|
3350 |
/**
|
|
|
3351 |
* Creates a function for `_.forIn` or `_.forInRight`.
|
|
|
3352 |
*
|
|
|
3353 |
* @private
|
|
|
3354 |
* @param {Function} objectFunc The function to iterate over an object.
|
|
|
3355 |
* @returns {Function} Returns the new each function.
|
|
|
3356 |
*/
|
|
|
3357 |
function createForIn(objectFunc) {
|
|
|
3358 |
return function(object, iteratee, thisArg) {
|
|
|
3359 |
if (typeof iteratee != 'function' || thisArg !== undefined) {
|
|
|
3360 |
iteratee = bindCallback(iteratee, thisArg, 3);
|
|
|
3361 |
}
|
|
|
3362 |
return objectFunc(object, iteratee, keysIn);
|
|
|
3363 |
};
|
|
|
3364 |
}
|
|
|
3365 |
|
|
|
3366 |
/**
|
|
|
3367 |
* Creates a function for `_.forOwn` or `_.forOwnRight`.
|
|
|
3368 |
*
|
|
|
3369 |
* @private
|
|
|
3370 |
* @param {Function} objectFunc The function to iterate over an object.
|
|
|
3371 |
* @returns {Function} Returns the new each function.
|
|
|
3372 |
*/
|
|
|
3373 |
function createForOwn(objectFunc) {
|
|
|
3374 |
return function(object, iteratee, thisArg) {
|
|
|
3375 |
if (typeof iteratee != 'function' || thisArg !== undefined) {
|
|
|
3376 |
iteratee = bindCallback(iteratee, thisArg, 3);
|
|
|
3377 |
}
|
|
|
3378 |
return objectFunc(object, iteratee);
|
|
|
3379 |
};
|
|
|
3380 |
}
|
|
|
3381 |
|
|
|
3382 |
/**
|
|
|
3383 |
* Creates a function for `_.mapKeys` or `_.mapValues`.
|
|
|
3384 |
*
|
|
|
3385 |
* @private
|
|
|
3386 |
* @param {boolean} [isMapKeys] Specify mapping keys instead of values.
|
|
|
3387 |
* @returns {Function} Returns the new map function.
|
|
|
3388 |
*/
|
|
|
3389 |
function createObjectMapper(isMapKeys) {
|
|
|
3390 |
return function(object, iteratee, thisArg) {
|
|
|
3391 |
var result = {};
|
|
|
3392 |
iteratee = getCallback(iteratee, thisArg, 3);
|
|
|
3393 |
|
|
|
3394 |
baseForOwn(object, function(value, key, object) {
|
|
|
3395 |
var mapped = iteratee(value, key, object);
|
|
|
3396 |
key = isMapKeys ? mapped : key;
|
|
|
3397 |
value = isMapKeys ? value : mapped;
|
|
|
3398 |
result[key] = value;
|
|
|
3399 |
});
|
|
|
3400 |
return result;
|
|
|
3401 |
};
|
|
|
3402 |
}
|
|
|
3403 |
|
|
|
3404 |
/**
|
|
|
3405 |
* Creates a function for `_.padLeft` or `_.padRight`.
|
|
|
3406 |
*
|
|
|
3407 |
* @private
|
|
|
3408 |
* @param {boolean} [fromRight] Specify padding from the right.
|
|
|
3409 |
* @returns {Function} Returns the new pad function.
|
|
|
3410 |
*/
|
|
|
3411 |
function createPadDir(fromRight) {
|
|
|
3412 |
return function(string, length, chars) {
|
|
|
3413 |
string = baseToString(string);
|
|
|
3414 |
return (fromRight ? string : '') + createPadding(string, length, chars) + (fromRight ? '' : string);
|
|
|
3415 |
};
|
|
|
3416 |
}
|
|
|
3417 |
|
|
|
3418 |
/**
|
|
|
3419 |
* Creates a `_.partial` or `_.partialRight` function.
|
|
|
3420 |
*
|
|
|
3421 |
* @private
|
|
|
3422 |
* @param {boolean} flag The partial bit flag.
|
|
|
3423 |
* @returns {Function} Returns the new partial function.
|
|
|
3424 |
*/
|
|
|
3425 |
function createPartial(flag) {
|
|
|
3426 |
var partialFunc = restParam(function(func, partials) {
|
|
|
3427 |
var holders = replaceHolders(partials, partialFunc.placeholder);
|
|
|
3428 |
return createWrapper(func, flag, undefined, partials, holders);
|
|
|
3429 |
});
|
|
|
3430 |
return partialFunc;
|
|
|
3431 |
}
|
|
|
3432 |
|
|
|
3433 |
/**
|
|
|
3434 |
* Creates a function for `_.reduce` or `_.reduceRight`.
|
|
|
3435 |
*
|
|
|
3436 |
* @private
|
|
|
3437 |
* @param {Function} arrayFunc The function to iterate over an array.
|
|
|
3438 |
* @param {Function} eachFunc The function to iterate over a collection.
|
|
|
3439 |
* @returns {Function} Returns the new each function.
|
|
|
3440 |
*/
|
|
|
3441 |
function createReduce(arrayFunc, eachFunc) {
|
|
|
3442 |
return function(collection, iteratee, accumulator, thisArg) {
|
|
|
3443 |
var initFromArray = arguments.length < 3;
|
|
|
3444 |
return (typeof iteratee == 'function' && thisArg === undefined && isArray(collection))
|
|
|
3445 |
? arrayFunc(collection, iteratee, accumulator, initFromArray)
|
|
|
3446 |
: baseReduce(collection, getCallback(iteratee, thisArg, 4), accumulator, initFromArray, eachFunc);
|
|
|
3447 |
};
|
|
|
3448 |
}
|
|
|
3449 |
|
|
|
3450 |
/**
|
|
|
3451 |
* Creates a function that wraps `func` and invokes it with optional `this`
|
|
|
3452 |
* binding of, partial application, and currying.
|
|
442
|
3453 |
*
|
|
|
3454 |
* @private
|
|
|
3455 |
* @param {Function|string} func The function or method name to reference.
|
|
498
|
3456 |
* @param {number} bitmask The bitmask of flags. See `createWrapper` for more details.
|
|
|
3457 |
* @param {*} [thisArg] The `this` binding of `func`.
|
|
|
3458 |
* @param {Array} [partials] The arguments to prepend to those provided to the new function.
|
|
|
3459 |
* @param {Array} [holders] The `partials` placeholder indexes.
|
|
|
3460 |
* @param {Array} [partialsRight] The arguments to append to those provided to the new function.
|
|
|
3461 |
* @param {Array} [holdersRight] The `partialsRight` placeholder indexes.
|
|
|
3462 |
* @param {Array} [argPos] The argument positions of the new function.
|
|
|
3463 |
* @param {number} [ary] The arity cap of `func`.
|
|
|
3464 |
* @param {number} [arity] The arity of `func`.
|
|
|
3465 |
* @returns {Function} Returns the new wrapped function.
|
|
|
3466 |
*/
|
|
|
3467 |
function createHybridWrapper(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {
|
|
|
3468 |
var isAry = bitmask & ARY_FLAG,
|
|
|
3469 |
isBind = bitmask & BIND_FLAG,
|
|
|
3470 |
isBindKey = bitmask & BIND_KEY_FLAG,
|
|
|
3471 |
isCurry = bitmask & CURRY_FLAG,
|
|
|
3472 |
isCurryBound = bitmask & CURRY_BOUND_FLAG,
|
|
|
3473 |
isCurryRight = bitmask & CURRY_RIGHT_FLAG,
|
|
|
3474 |
Ctor = isBindKey ? undefined : createCtorWrapper(func);
|
|
|
3475 |
|
|
|
3476 |
function wrapper() {
|
|
|
3477 |
// Avoid `arguments` object use disqualifying optimizations by
|
|
|
3478 |
// converting it to an array before providing it to other functions.
|
|
|
3479 |
var length = arguments.length,
|
|
|
3480 |
index = length,
|
|
|
3481 |
args = Array(length);
|
|
|
3482 |
|
|
|
3483 |
while (index--) {
|
|
|
3484 |
args[index] = arguments[index];
|
|
|
3485 |
}
|
|
|
3486 |
if (partials) {
|
|
|
3487 |
args = composeArgs(args, partials, holders);
|
|
|
3488 |
}
|
|
|
3489 |
if (partialsRight) {
|
|
|
3490 |
args = composeArgsRight(args, partialsRight, holdersRight);
|
|
|
3491 |
}
|
|
|
3492 |
if (isCurry || isCurryRight) {
|
|
|
3493 |
var placeholder = wrapper.placeholder,
|
|
|
3494 |
argsHolders = replaceHolders(args, placeholder);
|
|
|
3495 |
|
|
|
3496 |
length -= argsHolders.length;
|
|
|
3497 |
if (length < arity) {
|
|
|
3498 |
var newArgPos = argPos ? arrayCopy(argPos) : undefined,
|
|
|
3499 |
newArity = nativeMax(arity - length, 0),
|
|
|
3500 |
newsHolders = isCurry ? argsHolders : undefined,
|
|
|
3501 |
newHoldersRight = isCurry ? undefined : argsHolders,
|
|
|
3502 |
newPartials = isCurry ? args : undefined,
|
|
|
3503 |
newPartialsRight = isCurry ? undefined : args;
|
|
|
3504 |
|
|
|
3505 |
bitmask |= (isCurry ? PARTIAL_FLAG : PARTIAL_RIGHT_FLAG);
|
|
|
3506 |
bitmask &= ~(isCurry ? PARTIAL_RIGHT_FLAG : PARTIAL_FLAG);
|
|
|
3507 |
|
|
|
3508 |
if (!isCurryBound) {
|
|
|
3509 |
bitmask &= ~(BIND_FLAG | BIND_KEY_FLAG);
|
|
|
3510 |
}
|
|
|
3511 |
var newData = [func, bitmask, thisArg, newPartials, newsHolders, newPartialsRight, newHoldersRight, newArgPos, ary, newArity],
|
|
|
3512 |
result = createHybridWrapper.apply(undefined, newData);
|
|
|
3513 |
|
|
|
3514 |
if (isLaziable(func)) {
|
|
|
3515 |
setData(result, newData);
|
|
|
3516 |
}
|
|
|
3517 |
result.placeholder = placeholder;
|
|
|
3518 |
return result;
|
|
|
3519 |
}
|
|
|
3520 |
}
|
|
|
3521 |
var thisBinding = isBind ? thisArg : this,
|
|
|
3522 |
fn = isBindKey ? thisBinding[func] : func;
|
|
|
3523 |
|
|
|
3524 |
if (argPos) {
|
|
|
3525 |
args = reorder(args, argPos);
|
|
|
3526 |
}
|
|
|
3527 |
if (isAry && ary < args.length) {
|
|
|
3528 |
args.length = ary;
|
|
|
3529 |
}
|
|
|
3530 |
if (this && this !== root && this instanceof wrapper) {
|
|
|
3531 |
fn = Ctor || createCtorWrapper(func);
|
|
|
3532 |
}
|
|
|
3533 |
return fn.apply(thisBinding, args);
|
|
|
3534 |
}
|
|
|
3535 |
return wrapper;
|
|
|
3536 |
}
|
|
|
3537 |
|
|
|
3538 |
/**
|
|
|
3539 |
* Creates the padding required for `string` based on the given `length`.
|
|
|
3540 |
* The `chars` string is truncated if the number of characters exceeds `length`.
|
|
|
3541 |
*
|
|
|
3542 |
* @private
|
|
|
3543 |
* @param {string} string The string to create padding for.
|
|
|
3544 |
* @param {number} [length=0] The padding length.
|
|
|
3545 |
* @param {string} [chars=' '] The string used as padding.
|
|
|
3546 |
* @returns {string} Returns the pad for `string`.
|
|
|
3547 |
*/
|
|
|
3548 |
function createPadding(string, length, chars) {
|
|
|
3549 |
var strLength = string.length;
|
|
|
3550 |
length = +length;
|
|
|
3551 |
|
|
|
3552 |
if (strLength >= length || !nativeIsFinite(length)) {
|
|
|
3553 |
return '';
|
|
|
3554 |
}
|
|
|
3555 |
var padLength = length - strLength;
|
|
|
3556 |
chars = chars == null ? ' ' : (chars + '');
|
|
|
3557 |
return repeat(chars, nativeCeil(padLength / chars.length)).slice(0, padLength);
|
|
|
3558 |
}
|
|
|
3559 |
|
|
|
3560 |
/**
|
|
|
3561 |
* Creates a function that wraps `func` and invokes it with the optional `this`
|
|
|
3562 |
* binding of `thisArg` and the `partials` prepended to those provided to
|
|
|
3563 |
* the wrapper.
|
|
|
3564 |
*
|
|
|
3565 |
* @private
|
|
|
3566 |
* @param {Function} func The function to partially apply arguments to.
|
|
|
3567 |
* @param {number} bitmask The bitmask of flags. See `createWrapper` for more details.
|
|
|
3568 |
* @param {*} thisArg The `this` binding of `func`.
|
|
|
3569 |
* @param {Array} partials The arguments to prepend to those provided to the new function.
|
|
|
3570 |
* @returns {Function} Returns the new bound function.
|
|
|
3571 |
*/
|
|
|
3572 |
function createPartialWrapper(func, bitmask, thisArg, partials) {
|
|
|
3573 |
var isBind = bitmask & BIND_FLAG,
|
|
|
3574 |
Ctor = createCtorWrapper(func);
|
|
|
3575 |
|
|
|
3576 |
function wrapper() {
|
|
|
3577 |
// Avoid `arguments` object use disqualifying optimizations by
|
|
|
3578 |
// converting it to an array before providing it `func`.
|
|
|
3579 |
var argsIndex = -1,
|
|
|
3580 |
argsLength = arguments.length,
|
|
|
3581 |
leftIndex = -1,
|
|
|
3582 |
leftLength = partials.length,
|
|
|
3583 |
args = Array(leftLength + argsLength);
|
|
|
3584 |
|
|
|
3585 |
while (++leftIndex < leftLength) {
|
|
|
3586 |
args[leftIndex] = partials[leftIndex];
|
|
|
3587 |
}
|
|
|
3588 |
while (argsLength--) {
|
|
|
3589 |
args[leftIndex++] = arguments[++argsIndex];
|
|
|
3590 |
}
|
|
|
3591 |
var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
|
|
|
3592 |
return fn.apply(isBind ? thisArg : this, args);
|
|
|
3593 |
}
|
|
|
3594 |
return wrapper;
|
|
|
3595 |
}
|
|
|
3596 |
|
|
|
3597 |
/**
|
|
|
3598 |
* Creates a `_.ceil`, `_.floor`, or `_.round` function.
|
|
|
3599 |
*
|
|
|
3600 |
* @private
|
|
|
3601 |
* @param {string} methodName The name of the `Math` method to use when rounding.
|
|
|
3602 |
* @returns {Function} Returns the new round function.
|
|
|
3603 |
*/
|
|
|
3604 |
function createRound(methodName) {
|
|
|
3605 |
var func = Math[methodName];
|
|
|
3606 |
return function(number, precision) {
|
|
|
3607 |
precision = precision === undefined ? 0 : (+precision || 0);
|
|
|
3608 |
if (precision) {
|
|
|
3609 |
precision = pow(10, precision);
|
|
|
3610 |
return func(number * precision) / precision;
|
|
|
3611 |
}
|
|
|
3612 |
return func(number);
|
|
|
3613 |
};
|
|
|
3614 |
}
|
|
|
3615 |
|
|
|
3616 |
/**
|
|
|
3617 |
* Creates a `_.sortedIndex` or `_.sortedLastIndex` function.
|
|
|
3618 |
*
|
|
|
3619 |
* @private
|
|
|
3620 |
* @param {boolean} [retHighest] Specify returning the highest qualified index.
|
|
|
3621 |
* @returns {Function} Returns the new index function.
|
|
|
3622 |
*/
|
|
|
3623 |
function createSortedIndex(retHighest) {
|
|
|
3624 |
return function(array, value, iteratee, thisArg) {
|
|
|
3625 |
var callback = getCallback(iteratee);
|
|
|
3626 |
return (iteratee == null && callback === baseCallback)
|
|
|
3627 |
? binaryIndex(array, value, retHighest)
|
|
|
3628 |
: binaryIndexBy(array, value, callback(iteratee, thisArg, 1), retHighest);
|
|
|
3629 |
};
|
|
|
3630 |
}
|
|
|
3631 |
|
|
|
3632 |
/**
|
|
|
3633 |
* Creates a function that either curries or invokes `func` with optional
|
|
|
3634 |
* `this` binding and partially applied arguments.
|
|
|
3635 |
*
|
|
|
3636 |
* @private
|
|
|
3637 |
* @param {Function|string} func The function or method name to reference.
|
|
|
3638 |
* @param {number} bitmask The bitmask of flags.
|
|
442
|
3639 |
* The bitmask may be composed of the following flags:
|
|
498
|
3640 |
* 1 - `_.bind`
|
|
|
3641 |
* 2 - `_.bindKey`
|
|
|
3642 |
* 4 - `_.curry` or `_.curryRight` of a bound function
|
|
|
3643 |
* 8 - `_.curry`
|
|
|
3644 |
* 16 - `_.curryRight`
|
|
|
3645 |
* 32 - `_.partial`
|
|
|
3646 |
* 64 - `_.partialRight`
|
|
|
3647 |
* 128 - `_.rearg`
|
|
|
3648 |
* 256 - `_.ary`
|
|
442
|
3649 |
* @param {*} [thisArg] The `this` binding of `func`.
|
|
498
|
3650 |
* @param {Array} [partials] The arguments to be partially applied.
|
|
|
3651 |
* @param {Array} [holders] The `partials` placeholder indexes.
|
|
|
3652 |
* @param {Array} [argPos] The argument positions of the new function.
|
|
|
3653 |
* @param {number} [ary] The arity cap of `func`.
|
|
442
|
3654 |
* @param {number} [arity] The arity of `func`.
|
|
498
|
3655 |
* @returns {Function} Returns the new wrapped function.
|
|
|
3656 |
*/
|
|
|
3657 |
function createWrapper(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {
|
|
|
3658 |
var isBindKey = bitmask & BIND_KEY_FLAG;
|
|
|
3659 |
if (!isBindKey && typeof func != 'function') {
|
|
|
3660 |
throw new TypeError(FUNC_ERROR_TEXT);
|
|
|
3661 |
}
|
|
|
3662 |
var length = partials ? partials.length : 0;
|
|
|
3663 |
if (!length) {
|
|
|
3664 |
bitmask &= ~(PARTIAL_FLAG | PARTIAL_RIGHT_FLAG);
|
|
|
3665 |
partials = holders = undefined;
|
|
|
3666 |
}
|
|
|
3667 |
length -= (holders ? holders.length : 0);
|
|
|
3668 |
if (bitmask & PARTIAL_RIGHT_FLAG) {
|
|
|
3669 |
var partialsRight = partials,
|
|
|
3670 |
holdersRight = holders;
|
|
|
3671 |
|
|
|
3672 |
partials = holders = undefined;
|
|
|
3673 |
}
|
|
|
3674 |
var data = isBindKey ? undefined : getData(func),
|
|
|
3675 |
newData = [func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity];
|
|
|
3676 |
|
|
|
3677 |
if (data) {
|
|
|
3678 |
mergeData(newData, data);
|
|
|
3679 |
bitmask = newData[1];
|
|
|
3680 |
arity = newData[9];
|
|
|
3681 |
}
|
|
|
3682 |
newData[9] = arity == null
|
|
|
3683 |
? (isBindKey ? 0 : func.length)
|
|
|
3684 |
: (nativeMax(arity - length, 0) || 0);
|
|
|
3685 |
|
|
|
3686 |
if (bitmask == BIND_FLAG) {
|
|
|
3687 |
var result = createBindWrapper(newData[0], newData[2]);
|
|
|
3688 |
} else if ((bitmask == PARTIAL_FLAG || bitmask == (BIND_FLAG | PARTIAL_FLAG)) && !newData[4].length) {
|
|
|
3689 |
result = createPartialWrapper.apply(undefined, newData);
|
|
|
3690 |
} else {
|
|
|
3691 |
result = createHybridWrapper.apply(undefined, newData);
|
|
|
3692 |
}
|
|
|
3693 |
var setter = data ? baseSetData : setData;
|
|
|
3694 |
return setter(result, newData);
|
|
|
3695 |
}
|
|
|
3696 |
|
|
|
3697 |
/**
|
|
|
3698 |
* A specialized version of `baseIsEqualDeep` for arrays with support for
|
|
|
3699 |
* partial deep comparisons.
|
|
|
3700 |
*
|
|
|
3701 |
* @private
|
|
|
3702 |
* @param {Array} array The array to compare.
|
|
|
3703 |
* @param {Array} other The other array to compare.
|
|
|
3704 |
* @param {Function} equalFunc The function to determine equivalents of values.
|
|
|
3705 |
* @param {Function} [customizer] The function to customize comparing arrays.
|
|
|
3706 |
* @param {boolean} [isLoose] Specify performing partial comparisons.
|
|
|
3707 |
* @param {Array} [stackA] Tracks traversed `value` objects.
|
|
|
3708 |
* @param {Array} [stackB] Tracks traversed `other` objects.
|
|
|
3709 |
* @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
|
|
|
3710 |
*/
|
|
|
3711 |
function equalArrays(array, other, equalFunc, customizer, isLoose, stackA, stackB) {
|
|
|
3712 |
var index = -1,
|
|
|
3713 |
arrLength = array.length,
|
|
|
3714 |
othLength = other.length;
|
|
|
3715 |
|
|
|
3716 |
if (arrLength != othLength && !(isLoose && othLength > arrLength)) {
|
|
|
3717 |
return false;
|
|
|
3718 |
}
|
|
|
3719 |
// Ignore non-index properties.
|
|
|
3720 |
while (++index < arrLength) {
|
|
|
3721 |
var arrValue = array[index],
|
|
|
3722 |
othValue = other[index],
|
|
|
3723 |
result = customizer ? customizer(isLoose ? othValue : arrValue, isLoose ? arrValue : othValue, index) : undefined;
|
|
|
3724 |
|
|
|
3725 |
if (result !== undefined) {
|
|
|
3726 |
if (result) {
|
|
|
3727 |
continue;
|
|
|
3728 |
}
|
|
|
3729 |
return false;
|
|
|
3730 |
}
|
|
|
3731 |
// Recursively compare arrays (susceptible to call stack limits).
|
|
|
3732 |
if (isLoose) {
|
|
|
3733 |
if (!arraySome(other, function(othValue) {
|
|
|
3734 |
return arrValue === othValue || equalFunc(arrValue, othValue, customizer, isLoose, stackA, stackB);
|
|
|
3735 |
})) {
|
|
|
3736 |
return false;
|
|
|
3737 |
}
|
|
|
3738 |
} else if (!(arrValue === othValue || equalFunc(arrValue, othValue, customizer, isLoose, stackA, stackB))) {
|
|
|
3739 |
return false;
|
|
|
3740 |
}
|
|
|
3741 |
}
|
|
|
3742 |
return true;
|
|
|
3743 |
}
|
|
|
3744 |
|
|
|
3745 |
/**
|
|
|
3746 |
* A specialized version of `baseIsEqualDeep` for comparing objects of
|
|
|
3747 |
* the same `toStringTag`.
|
|
|
3748 |
*
|
|
|
3749 |
* **Note:** This function only supports comparing values with tags of
|
|
|
3750 |
* `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
|
|
|
3751 |
*
|
|
|
3752 |
* @private
|
|
|
3753 |
* @param {Object} object The object to compare.
|
|
|
3754 |
* @param {Object} other The other object to compare.
|
|
|
3755 |
* @param {string} tag The `toStringTag` of the objects to compare.
|
|
|
3756 |
* @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
|
|
|
3757 |
*/
|
|
|
3758 |
function equalByTag(object, other, tag) {
|
|
|
3759 |
switch (tag) {
|
|
|
3760 |
case boolTag:
|
|
|
3761 |
case dateTag:
|
|
|
3762 |
// Coerce dates and booleans to numbers, dates to milliseconds and booleans
|
|
|
3763 |
// to `1` or `0` treating invalid dates coerced to `NaN` as not equal.
|
|
|
3764 |
return +object == +other;
|
|
|
3765 |
|
|
|
3766 |
case errorTag:
|
|
|
3767 |
return object.name == other.name && object.message == other.message;
|
|
|
3768 |
|
|
|
3769 |
case numberTag:
|
|
|
3770 |
// Treat `NaN` vs. `NaN` as equal.
|
|
|
3771 |
return (object != +object)
|
|
|
3772 |
? other != +other
|
|
|
3773 |
: object == +other;
|
|
|
3774 |
|
|
|
3775 |
case regexpTag:
|
|
|
3776 |
case stringTag:
|
|
|
3777 |
// Coerce regexes to strings and treat strings primitives and string
|
|
|
3778 |
// objects as equal. See https://es5.github.io/#x15.10.6.4 for more details.
|
|
|
3779 |
return object == (other + '');
|
|
|
3780 |
}
|
|
|
3781 |
return false;
|
|
|
3782 |
}
|
|
|
3783 |
|
|
|
3784 |
/**
|
|
|
3785 |
* A specialized version of `baseIsEqualDeep` for objects with support for
|
|
|
3786 |
* partial deep comparisons.
|
|
|
3787 |
*
|
|
|
3788 |
* @private
|
|
|
3789 |
* @param {Object} object The object to compare.
|
|
|
3790 |
* @param {Object} other The other object to compare.
|
|
|
3791 |
* @param {Function} equalFunc The function to determine equivalents of values.
|
|
|
3792 |
* @param {Function} [customizer] The function to customize comparing values.
|
|
|
3793 |
* @param {boolean} [isLoose] Specify performing partial comparisons.
|
|
|
3794 |
* @param {Array} [stackA] Tracks traversed `value` objects.
|
|
|
3795 |
* @param {Array} [stackB] Tracks traversed `other` objects.
|
|
|
3796 |
* @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
|
|
|
3797 |
*/
|
|
|
3798 |
function equalObjects(object, other, equalFunc, customizer, isLoose, stackA, stackB) {
|
|
|
3799 |
var objProps = keys(object),
|
|
|
3800 |
objLength = objProps.length,
|
|
|
3801 |
othProps = keys(other),
|
|
|
3802 |
othLength = othProps.length;
|
|
|
3803 |
|
|
|
3804 |
if (objLength != othLength && !isLoose) {
|
|
|
3805 |
return false;
|
|
|
3806 |
}
|
|
|
3807 |
var index = objLength;
|
|
|
3808 |
while (index--) {
|
|
|
3809 |
var key = objProps[index];
|
|
|
3810 |
if (!(isLoose ? key in other : hasOwnProperty.call(other, key))) {
|
|
|
3811 |
return false;
|
|
|
3812 |
}
|
|
|
3813 |
}
|
|
|
3814 |
var skipCtor = isLoose;
|
|
|
3815 |
while (++index < objLength) {
|
|
|
3816 |
key = objProps[index];
|
|
|
3817 |
var objValue = object[key],
|
|
|
3818 |
othValue = other[key],
|
|
|
3819 |
result = customizer ? customizer(isLoose ? othValue : objValue, isLoose? objValue : othValue, key) : undefined;
|
|
|
3820 |
|
|
|
3821 |
// Recursively compare objects (susceptible to call stack limits).
|
|
|
3822 |
if (!(result === undefined ? equalFunc(objValue, othValue, customizer, isLoose, stackA, stackB) : result)) {
|
|
|
3823 |
return false;
|
|
|
3824 |
}
|
|
|
3825 |
skipCtor || (skipCtor = key == 'constructor');
|
|
|
3826 |
}
|
|
|
3827 |
if (!skipCtor) {
|
|
|
3828 |
var objCtor = object.constructor,
|
|
|
3829 |
othCtor = other.constructor;
|
|
|
3830 |
|
|
|
3831 |
// Non `Object` object instances with different constructors are not equal.
|
|
|
3832 |
if (objCtor != othCtor &&
|
|
|
3833 |
('constructor' in object && 'constructor' in other) &&
|
|
|
3834 |
!(typeof objCtor == 'function' && objCtor instanceof objCtor &&
|
|
|
3835 |
typeof othCtor == 'function' && othCtor instanceof othCtor)) {
|
|
|
3836 |
return false;
|
|
|
3837 |
}
|
|
|
3838 |
}
|
|
|
3839 |
return true;
|
|
|
3840 |
}
|
|
|
3841 |
|
|
|
3842 |
/**
|
|
|
3843 |
* Gets the appropriate "callback" function. If the `_.callback` method is
|
|
|
3844 |
* customized this function returns the custom method, otherwise it returns
|
|
|
3845 |
* the `baseCallback` function. If arguments are provided the chosen function
|
|
|
3846 |
* is invoked with them and its result is returned.
|
|
|
3847 |
*
|
|
|
3848 |
* @private
|
|
|
3849 |
* @returns {Function} Returns the chosen function or its result.
|
|
|
3850 |
*/
|
|
|
3851 |
function getCallback(func, thisArg, argCount) {
|
|
|
3852 |
var result = lodash.callback || callback;
|
|
|
3853 |
result = result === callback ? baseCallback : result;
|
|
|
3854 |
return argCount ? result(func, thisArg, argCount) : result;
|
|
|
3855 |
}
|
|
|
3856 |
|
|
|
3857 |
/**
|
|
|
3858 |
* Gets metadata for `func`.
|
|
|
3859 |
*
|
|
|
3860 |
* @private
|
|
|
3861 |
* @param {Function} func The function to query.
|
|
|
3862 |
* @returns {*} Returns the metadata for `func`.
|
|
|
3863 |
*/
|
|
|
3864 |
var getData = !metaMap ? noop : function(func) {
|
|
|
3865 |
return metaMap.get(func);
|
|
|
3866 |
};
|
|
|
3867 |
|
|
|
3868 |
/**
|
|
|
3869 |
* Gets the name of `func`.
|
|
|
3870 |
*
|
|
|
3871 |
* @private
|
|
|
3872 |
* @param {Function} func The function to query.
|
|
|
3873 |
* @returns {string} Returns the function name.
|
|
|
3874 |
*/
|
|
|
3875 |
function getFuncName(func) {
|
|
|
3876 |
var result = (func.name + ''),
|
|
|
3877 |
array = realNames[result],
|
|
|
3878 |
length = array ? array.length : 0;
|
|
|
3879 |
|
|
|
3880 |
while (length--) {
|
|
|
3881 |
var data = array[length],
|
|
|
3882 |
otherFunc = data.func;
|
|
|
3883 |
if (otherFunc == null || otherFunc == func) {
|
|
|
3884 |
return data.name;
|
|
|
3885 |
}
|
|
|
3886 |
}
|
|
|
3887 |
return result;
|
|
442
|
3888 |
}
|
|
|
3889 |
|
|
|
3890 |
/**
|
|
|
3891 |
* Gets the appropriate "indexOf" function. If the `_.indexOf` method is
|
|
498
|
3892 |
* customized this function returns the custom method, otherwise it returns
|
|
|
3893 |
* the `baseIndexOf` function. If arguments are provided the chosen function
|
|
|
3894 |
* is invoked with them and its result is returned.
|
|
|
3895 |
*
|
|
|
3896 |
* @private
|
|
|
3897 |
* @returns {Function|number} Returns the chosen function or its result.
|
|
|
3898 |
*/
|
|
|
3899 |
function getIndexOf(collection, target, fromIndex) {
|
|
|
3900 |
var result = lodash.indexOf || indexOf;
|
|
|
3901 |
result = result === indexOf ? baseIndexOf : result;
|
|
|
3902 |
return collection ? result(collection, target, fromIndex) : result;
|
|
|
3903 |
}
|
|
|
3904 |
|
|
|
3905 |
/**
|
|
|
3906 |
* Gets the "length" property value of `object`.
|
|
|
3907 |
*
|
|
|
3908 |
* **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)
|
|
|
3909 |
* that affects Safari on at least iOS 8.1-8.3 ARM64.
|
|
|
3910 |
*
|
|
|
3911 |
* @private
|
|
|
3912 |
* @param {Object} object The object to query.
|
|
|
3913 |
* @returns {*} Returns the "length" value.
|
|
|
3914 |
*/
|
|
|
3915 |
var getLength = baseProperty('length');
|
|
|
3916 |
|
|
|
3917 |
/**
|
|
|
3918 |
* Gets the propery names, values, and compare flags of `object`.
|
|
|
3919 |
*
|
|
|
3920 |
* @private
|
|
|
3921 |
* @param {Object} object The object to query.
|
|
|
3922 |
* @returns {Array} Returns the match data of `object`.
|
|
|
3923 |
*/
|
|
|
3924 |
function getMatchData(object) {
|
|
|
3925 |
var result = pairs(object),
|
|
|
3926 |
length = result.length;
|
|
|
3927 |
|
|
|
3928 |
while (length--) {
|
|
|
3929 |
result[length][2] = isStrictComparable(result[length][1]);
|
|
|
3930 |
}
|
|
442
|
3931 |
return result;
|
|
|
3932 |
}
|
|
|
3933 |
|
|
|
3934 |
/**
|
|
498
|
3935 |
* Gets the native function at `key` of `object`.
|
|
|
3936 |
*
|
|
|
3937 |
* @private
|
|
|
3938 |
* @param {Object} object The object to query.
|
|
|
3939 |
* @param {string} key The key of the method to get.
|
|
|
3940 |
* @returns {*} Returns the function if it's native, else `undefined`.
|
|
|
3941 |
*/
|
|
|
3942 |
function getNative(object, key) {
|
|
|
3943 |
var value = object == null ? undefined : object[key];
|
|
|
3944 |
return isNative(value) ? value : undefined;
|
|
|
3945 |
}
|
|
|
3946 |
|
|
|
3947 |
/**
|
|
|
3948 |
* Gets the view, applying any `transforms` to the `start` and `end` positions.
|
|
|
3949 |
*
|
|
|
3950 |
* @private
|
|
|
3951 |
* @param {number} start The start of the view.
|
|
|
3952 |
* @param {number} end The end of the view.
|
|
|
3953 |
* @param {Array} transforms The transformations to apply to the view.
|
|
|
3954 |
* @returns {Object} Returns an object containing the `start` and `end`
|
|
|
3955 |
* positions of the view.
|
|
|
3956 |
*/
|
|
|
3957 |
function getView(start, end, transforms) {
|
|
|
3958 |
var index = -1,
|
|
|
3959 |
length = transforms.length;
|
|
|
3960 |
|
|
|
3961 |
while (++index < length) {
|
|
|
3962 |
var data = transforms[index],
|
|
|
3963 |
size = data.size;
|
|
|
3964 |
|
|
|
3965 |
switch (data.type) {
|
|
|
3966 |
case 'drop': start += size; break;
|
|
|
3967 |
case 'dropRight': end -= size; break;
|
|
|
3968 |
case 'take': end = nativeMin(end, start + size); break;
|
|
|
3969 |
case 'takeRight': start = nativeMax(start, end - size); break;
|
|
|
3970 |
}
|
|
|
3971 |
}
|
|
|
3972 |
return { 'start': start, 'end': end };
|
|
|
3973 |
}
|
|
|
3974 |
|
|
|
3975 |
/**
|
|
|
3976 |
* Initializes an array clone.
|
|
|
3977 |
*
|
|
|
3978 |
* @private
|
|
|
3979 |
* @param {Array} array The array to clone.
|
|
|
3980 |
* @returns {Array} Returns the initialized clone.
|
|
|
3981 |
*/
|
|
|
3982 |
function initCloneArray(array) {
|
|
|
3983 |
var length = array.length,
|
|
|
3984 |
result = new array.constructor(length);
|
|
|
3985 |
|
|
|
3986 |
// Add array properties assigned by `RegExp#exec`.
|
|
|
3987 |
if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {
|
|
|
3988 |
result.index = array.index;
|
|
|
3989 |
result.input = array.input;
|
|
|
3990 |
}
|
|
|
3991 |
return result;
|
|
|
3992 |
}
|
|
|
3993 |
|
|
|
3994 |
/**
|
|
|
3995 |
* Initializes an object clone.
|
|
|
3996 |
*
|
|
|
3997 |
* @private
|
|
|
3998 |
* @param {Object} object The object to clone.
|
|
|
3999 |
* @returns {Object} Returns the initialized clone.
|
|
|
4000 |
*/
|
|
|
4001 |
function initCloneObject(object) {
|
|
|
4002 |
var Ctor = object.constructor;
|
|
|
4003 |
if (!(typeof Ctor == 'function' && Ctor instanceof Ctor)) {
|
|
|
4004 |
Ctor = Object;
|
|
|
4005 |
}
|
|
|
4006 |
return new Ctor;
|
|
|
4007 |
}
|
|
|
4008 |
|
|
|
4009 |
/**
|
|
|
4010 |
* Initializes an object clone based on its `toStringTag`.
|
|
|
4011 |
*
|
|
|
4012 |
* **Note:** This function only supports cloning values with tags of
|
|
|
4013 |
* `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
|
|
|
4014 |
*
|
|
|
4015 |
* @private
|
|
|
4016 |
* @param {Object} object The object to clone.
|
|
|
4017 |
* @param {string} tag The `toStringTag` of the object to clone.
|
|
|
4018 |
* @param {boolean} [isDeep] Specify a deep clone.
|
|
|
4019 |
* @returns {Object} Returns the initialized clone.
|
|
|
4020 |
*/
|
|
|
4021 |
function initCloneByTag(object, tag, isDeep) {
|
|
|
4022 |
var Ctor = object.constructor;
|
|
|
4023 |
switch (tag) {
|
|
|
4024 |
case arrayBufferTag:
|
|
|
4025 |
return bufferClone(object);
|
|
|
4026 |
|
|
|
4027 |
case boolTag:
|
|
|
4028 |
case dateTag:
|
|
|
4029 |
return new Ctor(+object);
|
|
|
4030 |
|
|
|
4031 |
case float32Tag: case float64Tag:
|
|
|
4032 |
case int8Tag: case int16Tag: case int32Tag:
|
|
|
4033 |
case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:
|
|
|
4034 |
var buffer = object.buffer;
|
|
|
4035 |
return new Ctor(isDeep ? bufferClone(buffer) : buffer, object.byteOffset, object.length);
|
|
|
4036 |
|
|
|
4037 |
case numberTag:
|
|
|
4038 |
case stringTag:
|
|
|
4039 |
return new Ctor(object);
|
|
|
4040 |
|
|
|
4041 |
case regexpTag:
|
|
|
4042 |
var result = new Ctor(object.source, reFlags.exec(object));
|
|
|
4043 |
result.lastIndex = object.lastIndex;
|
|
|
4044 |
}
|
|
|
4045 |
return result;
|
|
|
4046 |
}
|
|
|
4047 |
|
|
|
4048 |
/**
|
|
|
4049 |
* Invokes the method at `path` on `object`.
|
|
|
4050 |
*
|
|
|
4051 |
* @private
|
|
|
4052 |
* @param {Object} object The object to query.
|
|
|
4053 |
* @param {Array|string} path The path of the method to invoke.
|
|
|
4054 |
* @param {Array} args The arguments to invoke the method with.
|
|
|
4055 |
* @returns {*} Returns the result of the invoked method.
|
|
|
4056 |
*/
|
|
|
4057 |
function invokePath(object, path, args) {
|
|
|
4058 |
if (object != null && !isKey(path, object)) {
|
|
|
4059 |
path = toPath(path);
|
|
|
4060 |
object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1));
|
|
|
4061 |
path = last(path);
|
|
|
4062 |
}
|
|
|
4063 |
var func = object == null ? object : object[path];
|
|
|
4064 |
return func == null ? undefined : func.apply(object, args);
|
|
|
4065 |
}
|
|
|
4066 |
|
|
|
4067 |
/**
|
|
|
4068 |
* Checks if `value` is array-like.
|
|
442
|
4069 |
*
|
|
|
4070 |
* @private
|
|
|
4071 |
* @param {*} value The value to check.
|
|
498
|
4072 |
* @returns {boolean} Returns `true` if `value` is array-like, else `false`.
|
|
|
4073 |
*/
|
|
|
4074 |
function isArrayLike(value) {
|
|
|
4075 |
return value != null && isLength(getLength(value));
|
|
|
4076 |
}
|
|
|
4077 |
|
|
|
4078 |
/**
|
|
|
4079 |
* Checks if `value` is a valid array-like index.
|
|
442
|
4080 |
*
|
|
|
4081 |
* @private
|
|
|
4082 |
* @param {*} value The value to check.
|
|
498
|
4083 |
* @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
|
|
|
4084 |
* @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
|
|
|
4085 |
*/
|
|
|
4086 |
function isIndex(value, length) {
|
|
|
4087 |
value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1;
|
|
|
4088 |
length = length == null ? MAX_SAFE_INTEGER : length;
|
|
|
4089 |
return value > -1 && value % 1 == 0 && value < length;
|
|
|
4090 |
}
|
|
|
4091 |
|
|
|
4092 |
/**
|
|
|
4093 |
* Checks if the provided arguments are from an iteratee call.
|
|
|
4094 |
*
|
|
|
4095 |
* @private
|
|
|
4096 |
* @param {*} value The potential iteratee value argument.
|
|
|
4097 |
* @param {*} index The potential iteratee index or key argument.
|
|
|
4098 |
* @param {*} object The potential iteratee object argument.
|
|
|
4099 |
* @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`.
|
|
|
4100 |
*/
|
|
|
4101 |
function isIterateeCall(value, index, object) {
|
|
442
|
4102 |
if (!isObject(object)) {
|
|
498
|
4103 |
return false;
|
|
|
4104 |
}
|
|
|
4105 |
var type = typeof index;
|
|
|
4106 |
if (type == 'number'
|
|
|
4107 |
? (isArrayLike(object) && isIndex(index, object.length))
|
|
|
4108 |
: (type == 'string' && index in object)) {
|
|
|
4109 |
var other = object[index];
|
|
|
4110 |
return value === value ? (value === other) : (other !== other);
|
|
|
4111 |
}
|
|
|
4112 |
return false;
|
|
|
4113 |
}
|
|
|
4114 |
|
|
|
4115 |
/**
|
|
|
4116 |
* Checks if `value` is a property name and not a property path.
|
|
|
4117 |
*
|
|
|
4118 |
* @private
|
|
|
4119 |
* @param {*} value The value to check.
|
|
|
4120 |
* @param {Object} [object] The object to query keys on.
|
|
|
4121 |
* @returns {boolean} Returns `true` if `value` is a property name, else `false`.
|
|
|
4122 |
*/
|
|
|
4123 |
function isKey(value, object) {
|
|
|
4124 |
var type = typeof value;
|
|
|
4125 |
if ((type == 'string' && reIsPlainProp.test(value)) || type == 'number') {
|
|
|
4126 |
return true;
|
|
|
4127 |
}
|
|
|
4128 |
if (isArray(value)) {
|
|
|
4129 |
return false;
|
|
|
4130 |
}
|
|
|
4131 |
var result = !reIsDeepProp.test(value);
|
|
|
4132 |
return result || (object != null && value in toObject(object));
|
|
|
4133 |
}
|
|
|
4134 |
|
|
|
4135 |
/**
|
|
|
4136 |
* Checks if `func` has a lazy counterpart.
|
|
|
4137 |
*
|
|
|
4138 |
* @private
|
|
|
4139 |
* @param {Function} func The function to check.
|
|
|
4140 |
* @returns {boolean} Returns `true` if `func` has a lazy counterpart, else `false`.
|
|
|
4141 |
*/
|
|
|
4142 |
function isLaziable(func) {
|
|
|
4143 |
var funcName = getFuncName(func),
|
|
|
4144 |
other = lodash[funcName];
|
|
|
4145 |
|
|
|
4146 |
if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) {
|
|
|
4147 |
return false;
|
|
|
4148 |
}
|
|
|
4149 |
if (func === other) {
|
|
|
4150 |
return true;
|
|
|
4151 |
}
|
|
|
4152 |
var data = getData(other);
|
|
|
4153 |
return !!data && func === data[0];
|
|
|
4154 |
}
|
|
|
4155 |
|
|
|
4156 |
/**
|
|
|
4157 |
* Checks if `value` is a valid array-like length.
|
|
|
4158 |
*
|
|
|
4159 |
* **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
|
|
|
4160 |
*
|
|
|
4161 |
* @private
|
|
|
4162 |
* @param {*} value The value to check.
|
|
|
4163 |
* @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
|
|
|
4164 |
*/
|
|
|
4165 |
function isLength(value) {
|
|
|
4166 |
return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
|
|
|
4167 |
}
|
|
|
4168 |
|
|
|
4169 |
/**
|
|
|
4170 |
* Checks if `value` is suitable for strict equality comparisons, i.e. `===`.
|
|
|
4171 |
*
|
|
|
4172 |
* @private
|
|
|
4173 |
* @param {*} value The value to check.
|
|
|
4174 |
* @returns {boolean} Returns `true` if `value` if suitable for strict
|
|
|
4175 |
* equality comparisons, else `false`.
|
|
|
4176 |
*/
|
|
|
4177 |
function isStrictComparable(value) {
|
|
|
4178 |
return value === value && !isObject(value);
|
|
|
4179 |
}
|
|
|
4180 |
|
|
|
4181 |
/**
|
|
|
4182 |
* Merges the function metadata of `source` into `data`.
|
|
|
4183 |
*
|
|
|
4184 |
* Merging metadata reduces the number of wrappers required to invoke a function.
|
|
|
4185 |
* This is possible because methods like `_.bind`, `_.curry`, and `_.partial`
|
|
|
4186 |
* may be applied regardless of execution order. Methods like `_.ary` and `_.rearg`
|
|
|
4187 |
* augment function arguments, making the order in which they are executed important,
|
|
|
4188 |
* preventing the merging of metadata. However, we make an exception for a safe
|
|
|
4189 |
* common case where curried functions have `_.ary` and or `_.rearg` applied.
|
|
|
4190 |
*
|
|
|
4191 |
* @private
|
|
|
4192 |
* @param {Array} data The destination metadata.
|
|
|
4193 |
* @param {Array} source The source metadata.
|
|
|
4194 |
* @returns {Array} Returns `data`.
|
|
|
4195 |
*/
|
|
|
4196 |
function mergeData(data, source) {
|
|
|
4197 |
var bitmask = data[1],
|
|
|
4198 |
srcBitmask = source[1],
|
|
|
4199 |
newBitmask = bitmask | srcBitmask,
|
|
|
4200 |
isCommon = newBitmask < ARY_FLAG;
|
|
|
4201 |
|
|
|
4202 |
var isCombo =
|
|
|
4203 |
(srcBitmask == ARY_FLAG && bitmask == CURRY_FLAG) ||
|
|
|
4204 |
(srcBitmask == ARY_FLAG && bitmask == REARG_FLAG && data[7].length <= source[8]) ||
|
|
|
4205 |
(srcBitmask == (ARY_FLAG | REARG_FLAG) && bitmask == CURRY_FLAG);
|
|
|
4206 |
|
|
|
4207 |
// Exit early if metadata can't be merged.
|
|
|
4208 |
if (!(isCommon || isCombo)) {
|
|
|
4209 |
return data;
|
|
|
4210 |
}
|
|
|
4211 |
// Use source `thisArg` if available.
|
|
|
4212 |
if (srcBitmask & BIND_FLAG) {
|
|
|
4213 |
data[2] = source[2];
|
|
|
4214 |
// Set when currying a bound function.
|
|
|
4215 |
newBitmask |= (bitmask & BIND_FLAG) ? 0 : CURRY_BOUND_FLAG;
|
|
|
4216 |
}
|
|
|
4217 |
// Compose partial arguments.
|
|
|
4218 |
var value = source[3];
|
|
|
4219 |
if (value) {
|
|
|
4220 |
var partials = data[3];
|
|
|
4221 |
data[3] = partials ? composeArgs(partials, value, source[4]) : arrayCopy(value);
|
|
|
4222 |
data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : arrayCopy(source[4]);
|
|
|
4223 |
}
|
|
|
4224 |
// Compose partial right arguments.
|
|
|
4225 |
value = source[5];
|
|
|
4226 |
if (value) {
|
|
|
4227 |
partials = data[5];
|
|
|
4228 |
data[5] = partials ? composeArgsRight(partials, value, source[6]) : arrayCopy(value);
|
|
|
4229 |
data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : arrayCopy(source[6]);
|
|
|
4230 |
}
|
|
|
4231 |
// Use source `argPos` if available.
|
|
|
4232 |
value = source[7];
|
|
|
4233 |
if (value) {
|
|
|
4234 |
data[7] = arrayCopy(value);
|
|
|
4235 |
}
|
|
|
4236 |
// Use source `ary` if it's smaller.
|
|
|
4237 |
if (srcBitmask & ARY_FLAG) {
|
|
|
4238 |
data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);
|
|
|
4239 |
}
|
|
|
4240 |
// Use source `arity` if one is not provided.
|
|
|
4241 |
if (data[9] == null) {
|
|
|
4242 |
data[9] = source[9];
|
|
|
4243 |
}
|
|
|
4244 |
// Use source `func` and merge bitmasks.
|
|
|
4245 |
data[0] = source[0];
|
|
|
4246 |
data[1] = newBitmask;
|
|
|
4247 |
|
|
|
4248 |
return data;
|
|
|
4249 |
}
|
|
|
4250 |
|
|
|
4251 |
/**
|
|
|
4252 |
* Used by `_.defaultsDeep` to customize its `_.merge` use.
|
|
|
4253 |
*
|
|
|
4254 |
* @private
|
|
|
4255 |
* @param {*} objectValue The destination object property value.
|
|
|
4256 |
* @param {*} sourceValue The source object property value.
|
|
|
4257 |
* @returns {*} Returns the value to assign to the destination object.
|
|
|
4258 |
*/
|
|
|
4259 |
function mergeDefaults(objectValue, sourceValue) {
|
|
|
4260 |
return objectValue === undefined ? sourceValue : merge(objectValue, sourceValue, mergeDefaults);
|
|
|
4261 |
}
|
|
|
4262 |
|
|
|
4263 |
/**
|
|
|
4264 |
* A specialized version of `_.pick` which picks `object` properties specified
|
|
|
4265 |
* by `props`.
|
|
|
4266 |
*
|
|
|
4267 |
* @private
|
|
|
4268 |
* @param {Object} object The source object.
|
|
|
4269 |
* @param {string[]} props The property names to pick.
|
|
442
|
4270 |
* @returns {Object} Returns the new object.
|
|
498
|
4271 |
*/
|
|
|
4272 |
function pickByArray(object, props) {
|
|
|
4273 |
object = toObject(object);
|
|
|
4274 |
|
|
442
|
4275 |
var index = -1,
|
|
|
4276 |
length = props.length,
|
|
|
4277 |
result = {};
|
|
|
4278 |
|
|
|
4279 |
while (++index < length) {
|
|
|
4280 |
var key = props[index];
|
|
498
|
4281 |
if (key in object) {
|
|
|
4282 |
result[key] = object[key];
|
|
|
4283 |
}
|
|
442
|
4284 |
}
|
|
|
4285 |
return result;
|
|
|
4286 |
}
|
|
|
4287 |
|
|
|
4288 |
/**
|
|
498
|
4289 |
* A specialized version of `_.pick` which picks `object` properties `predicate`
|
|
|
4290 |
* returns truthy for.
|
|
|
4291 |
*
|
|
|
4292 |
* @private
|
|
|
4293 |
* @param {Object} object The source object.
|
|
|
4294 |
* @param {Function} predicate The function invoked per iteration.
|
|
|
4295 |
* @returns {Object} Returns the new object.
|
|
|
4296 |
*/
|
|
|
4297 |
function pickByCallback(object, predicate) {
|
|
|
4298 |
var result = {};
|
|
|
4299 |
baseForIn(object, function(value, key, object) {
|
|
|
4300 |
if (predicate(value, key, object)) {
|
|
|
4301 |
result[key] = value;
|
|
|
4302 |
}
|
|
|
4303 |
});
|
|
|
4304 |
return result;
|
|
|
4305 |
}
|
|
|
4306 |
|
|
|
4307 |
/**
|
|
|
4308 |
* Reorder `array` according to the specified indexes where the element at
|
|
|
4309 |
* the first index is assigned as the first element, the element at
|
|
|
4310 |
* the second index is assigned as the second element, and so on.
|
|
|
4311 |
*
|
|
|
4312 |
* @private
|
|
|
4313 |
* @param {Array} array The array to reorder.
|
|
|
4314 |
* @param {Array} indexes The arranged array indexes.
|
|
|
4315 |
* @returns {Array} Returns `array`.
|
|
|
4316 |
*/
|
|
|
4317 |
function reorder(array, indexes) {
|
|
|
4318 |
var arrLength = array.length,
|
|
|
4319 |
length = nativeMin(indexes.length, arrLength),
|
|
|
4320 |
oldArray = arrayCopy(array);
|
|
|
4321 |
|
|
|
4322 |
while (length--) {
|
|
|
4323 |
var index = indexes[length];
|
|
|
4324 |
array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;
|
|
|
4325 |
}
|
|
|
4326 |
return array;
|
|
|
4327 |
}
|
|
|
4328 |
|
|
|
4329 |
/**
|
|
|
4330 |
* Sets metadata for `func`.
|
|
|
4331 |
*
|
|
|
4332 |
* **Note:** If this function becomes hot, i.e. is invoked a lot in a short
|
|
|
4333 |
* period of time, it will trip its breaker and transition to an identity function
|
|
|
4334 |
* to avoid garbage collection pauses in V8. See [V8 issue 2070](https://code.google.com/p/v8/issues/detail?id=2070)
|
|
|
4335 |
* for more details.
|
|
|
4336 |
*
|
|
|
4337 |
* @private
|
|
|
4338 |
* @param {Function} func The function to associate metadata with.
|
|
|
4339 |
* @param {*} data The metadata.
|
|
|
4340 |
* @returns {Function} Returns `func`.
|
|
|
4341 |
*/
|
|
|
4342 |
var setData = (function() {
|
|
|
4343 |
var count = 0,
|
|
|
4344 |
lastCalled = 0;
|
|
|
4345 |
|
|
|
4346 |
return function(key, value) {
|
|
|
4347 |
var stamp = now(),
|
|
|
4348 |
remaining = HOT_SPAN - (stamp - lastCalled);
|
|
|
4349 |
|
|
|
4350 |
lastCalled = stamp;
|
|
|
4351 |
if (remaining > 0) {
|
|
|
4352 |
if (++count >= HOT_COUNT) {
|
|
|
4353 |
return key;
|
|
|
4354 |
}
|
|
|
4355 |
} else {
|
|
|
4356 |
count = 0;
|
|
|
4357 |
}
|
|
|
4358 |
return baseSetData(key, value);
|
|
|
4359 |
};
|
|
|
4360 |
}());
|
|
|
4361 |
|
|
|
4362 |
/**
|
|
|
4363 |
* A fallback implementation of `Object.keys` which creates an array of the
|
|
|
4364 |
* own enumerable property names of `object`.
|
|
|
4365 |
*
|
|
|
4366 |
* @private
|
|
|
4367 |
* @param {Object} object The object to query.
|
|
|
4368 |
* @returns {Array} Returns the array of property names.
|
|
|
4369 |
*/
|
|
|
4370 |
function shimKeys(object) {
|
|
|
4371 |
var props = keysIn(object),
|
|
|
4372 |
propsLength = props.length,
|
|
|
4373 |
length = propsLength && object.length;
|
|
|
4374 |
|
|
|
4375 |
var allowIndexes = !!length && isLength(length) &&
|
|
|
4376 |
(isArray(object) || isArguments(object));
|
|
|
4377 |
|
|
|
4378 |
var index = -1,
|
|
|
4379 |
result = [];
|
|
|
4380 |
|
|
|
4381 |
while (++index < propsLength) {
|
|
|
4382 |
var key = props[index];
|
|
|
4383 |
if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) {
|
|
|
4384 |
result.push(key);
|
|
|
4385 |
}
|
|
|
4386 |
}
|
|
|
4387 |
return result;
|
|
|
4388 |
}
|
|
|
4389 |
|
|
|
4390 |
/**
|
|
|
4391 |
* Converts `value` to an array-like object if it's not one.
|
|
|
4392 |
*
|
|
|
4393 |
* @private
|
|
|
4394 |
* @param {*} value The value to process.
|
|
|
4395 |
* @returns {Array|Object} Returns the array-like object.
|
|
|
4396 |
*/
|
|
|
4397 |
function toIterable(value) {
|
|
|
4398 |
if (value == null) {
|
|
|
4399 |
return [];
|
|
|
4400 |
}
|
|
|
4401 |
if (!isArrayLike(value)) {
|
|
|
4402 |
return values(value);
|
|
|
4403 |
}
|
|
|
4404 |
return isObject(value) ? value : Object(value);
|
|
|
4405 |
}
|
|
|
4406 |
|
|
|
4407 |
/**
|
|
|
4408 |
* Converts `value` to an object if it's not one.
|
|
|
4409 |
*
|
|
|
4410 |
* @private
|
|
|
4411 |
* @param {*} value The value to process.
|
|
|
4412 |
* @returns {Object} Returns the object.
|
|
|
4413 |
*/
|
|
|
4414 |
function toObject(value) {
|
|
|
4415 |
return isObject(value) ? value : Object(value);
|
|
|
4416 |
}
|
|
|
4417 |
|
|
|
4418 |
/**
|
|
|
4419 |
* Converts `value` to property path array if it's not one.
|
|
|
4420 |
*
|
|
|
4421 |
* @private
|
|
|
4422 |
* @param {*} value The value to process.
|
|
|
4423 |
* @returns {Array} Returns the property path array.
|
|
|
4424 |
*/
|
|
|
4425 |
function toPath(value) {
|
|
|
4426 |
if (isArray(value)) {
|
|
|
4427 |
return value;
|
|
|
4428 |
}
|
|
|
4429 |
var result = [];
|
|
|
4430 |
baseToString(value).replace(rePropName, function(match, number, quote, string) {
|
|
|
4431 |
result.push(quote ? string.replace(reEscapeChar, '$1') : (number || match));
|
|
442
|
4432 |
});
|
|
|
4433 |
return result;
|
|
|
4434 |
}
|
|
|
4435 |
|
|
|
4436 |
/**
|
|
498
|
4437 |
* Creates a clone of `wrapper`.
|
|
|
4438 |
*
|
|
|
4439 |
* @private
|
|
|
4440 |
* @param {Object} wrapper The wrapper to clone.
|
|
|
4441 |
* @returns {Object} Returns the cloned wrapper.
|
|
|
4442 |
*/
|
|
|
4443 |
function wrapperClone(wrapper) {
|
|
|
4444 |
return wrapper instanceof LazyWrapper
|
|
|
4445 |
? wrapper.clone()
|
|
|
4446 |
: new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__, arrayCopy(wrapper.__actions__));
|
|
|
4447 |
}
|
|
|
4448 |
|
|
|
4449 |
/*------------------------------------------------------------------------*/
|
|
|
4450 |
|
|
|
4451 |
/**
|
|
|
4452 |
* Creates an array of elements split into groups the length of `size`.
|
|
|
4453 |
* If `collection` can't be split evenly, the final chunk will be the remaining
|
|
|
4454 |
* elements.
|
|
|
4455 |
*
|
|
|
4456 |
* @static
|
|
|
4457 |
* @memberOf _
|
|
|
4458 |
* @category Array
|
|
|
4459 |
* @param {Array} array The array to process.
|
|
|
4460 |
* @param {number} [size=1] The length of each chunk.
|
|
|
4461 |
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
|
|
|
4462 |
* @returns {Array} Returns the new array containing chunks.
|
|
|
4463 |
* @example
|
|
|
4464 |
*
|
|
|
4465 |
* _.chunk(['a', 'b', 'c', 'd'], 2);
|
|
|
4466 |
* // => [['a', 'b'], ['c', 'd']]
|
|
|
4467 |
*
|
|
|
4468 |
* _.chunk(['a', 'b', 'c', 'd'], 3);
|
|
|
4469 |
* // => [['a', 'b', 'c'], ['d']]
|
|
|
4470 |
*/
|
|
|
4471 |
function chunk(array, size, guard) {
|
|
|
4472 |
if (guard ? isIterateeCall(array, size, guard) : size == null) {
|
|
|
4473 |
size = 1;
|
|
|
4474 |
} else {
|
|
|
4475 |
size = nativeMax(nativeFloor(size) || 1, 1);
|
|
|
4476 |
}
|
|
|
4477 |
var index = 0,
|
|
|
4478 |
length = array ? array.length : 0,
|
|
|
4479 |
resIndex = -1,
|
|
|
4480 |
result = Array(nativeCeil(length / size));
|
|
|
4481 |
|
|
|
4482 |
while (index < length) {
|
|
|
4483 |
result[++resIndex] = baseSlice(array, index, (index += size));
|
|
|
4484 |
}
|
|
|
4485 |
return result;
|
|
|
4486 |
}
|
|
|
4487 |
|
|
|
4488 |
/**
|
|
|
4489 |
* Creates an array with all falsey values removed. The values `false`, `null`,
|
|
|
4490 |
* `0`, `""`, `undefined`, and `NaN` are falsey.
|
|
|
4491 |
*
|
|
|
4492 |
* @static
|
|
|
4493 |
* @memberOf _
|
|
|
4494 |
* @category Array
|
|
|
4495 |
* @param {Array} array The array to compact.
|
|
|
4496 |
* @returns {Array} Returns the new array of filtered values.
|
|
|
4497 |
* @example
|
|
|
4498 |
*
|
|
|
4499 |
* _.compact([0, 1, false, 2, '', 3]);
|
|
|
4500 |
* // => [1, 2, 3]
|
|
|
4501 |
*/
|
|
|
4502 |
function compact(array) {
|
|
|
4503 |
var index = -1,
|
|
|
4504 |
length = array ? array.length : 0,
|
|
|
4505 |
resIndex = -1,
|
|
|
4506 |
result = [];
|
|
|
4507 |
|
|
|
4508 |
while (++index < length) {
|
|
|
4509 |
var value = array[index];
|
|
|
4510 |
if (value) {
|
|
|
4511 |
result[++resIndex] = value;
|
|
|
4512 |
}
|
|
|
4513 |
}
|
|
|
4514 |
return result;
|
|
|
4515 |
}
|
|
|
4516 |
|
|
|
4517 |
/**
|
|
|
4518 |
* Creates an array of unique `array` values not included in the other
|
|
|
4519 |
* provided arrays using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
|
|
|
4520 |
* for equality comparisons.
|
|
|
4521 |
*
|
|
|
4522 |
* @static
|
|
|
4523 |
* @memberOf _
|
|
|
4524 |
* @category Array
|
|
|
4525 |
* @param {Array} array The array to inspect.
|
|
|
4526 |
* @param {...Array} [values] The arrays of values to exclude.
|
|
|
4527 |
* @returns {Array} Returns the new array of filtered values.
|
|
|
4528 |
* @example
|
|
|
4529 |
*
|
|
|
4530 |
* _.difference([1, 2, 3], [4, 2]);
|
|
|
4531 |
* // => [1, 3]
|
|
|
4532 |
*/
|
|
|
4533 |
var difference = restParam(function(array, values) {
|
|
|
4534 |
return (isObjectLike(array) && isArrayLike(array))
|
|
|
4535 |
? baseDifference(array, baseFlatten(values, false, true))
|
|
|
4536 |
: [];
|
|
|
4537 |
});
|
|
|
4538 |
|
|
|
4539 |
/**
|
|
|
4540 |
* Creates a slice of `array` with `n` elements dropped from the beginning.
|
|
|
4541 |
*
|
|
|
4542 |
* @static
|
|
|
4543 |
* @memberOf _
|
|
|
4544 |
* @category Array
|
|
|
4545 |
* @param {Array} array The array to query.
|
|
|
4546 |
* @param {number} [n=1] The number of elements to drop.
|
|
|
4547 |
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
|
|
|
4548 |
* @returns {Array} Returns the slice of `array`.
|
|
|
4549 |
* @example
|
|
|
4550 |
*
|
|
|
4551 |
* _.drop([1, 2, 3]);
|
|
|
4552 |
* // => [2, 3]
|
|
|
4553 |
*
|
|
|
4554 |
* _.drop([1, 2, 3], 2);
|
|
|
4555 |
* // => [3]
|
|
|
4556 |
*
|
|
|
4557 |
* _.drop([1, 2, 3], 5);
|
|
|
4558 |
* // => []
|
|
|
4559 |
*
|
|
|
4560 |
* _.drop([1, 2, 3], 0);
|
|
|
4561 |
* // => [1, 2, 3]
|
|
|
4562 |
*/
|
|
|
4563 |
function drop(array, n, guard) {
|
|
|
4564 |
var length = array ? array.length : 0;
|
|
|
4565 |
if (!length) {
|
|
|
4566 |
return [];
|
|
|
4567 |
}
|
|
|
4568 |
if (guard ? isIterateeCall(array, n, guard) : n == null) {
|
|
|
4569 |
n = 1;
|
|
|
4570 |
}
|
|
|
4571 |
return baseSlice(array, n < 0 ? 0 : n);
|
|
|
4572 |
}
|
|
|
4573 |
|
|
|
4574 |
/**
|
|
|
4575 |
* Creates a slice of `array` with `n` elements dropped from the end.
|
|
|
4576 |
*
|
|
|
4577 |
* @static
|
|
|
4578 |
* @memberOf _
|
|
|
4579 |
* @category Array
|
|
|
4580 |
* @param {Array} array The array to query.
|
|
|
4581 |
* @param {number} [n=1] The number of elements to drop.
|
|
|
4582 |
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
|
|
|
4583 |
* @returns {Array} Returns the slice of `array`.
|
|
|
4584 |
* @example
|
|
|
4585 |
*
|
|
|
4586 |
* _.dropRight([1, 2, 3]);
|
|
|
4587 |
* // => [1, 2]
|
|
|
4588 |
*
|
|
|
4589 |
* _.dropRight([1, 2, 3], 2);
|
|
|
4590 |
* // => [1]
|
|
|
4591 |
*
|
|
|
4592 |
* _.dropRight([1, 2, 3], 5);
|
|
|
4593 |
* // => []
|
|
|
4594 |
*
|
|
|
4595 |
* _.dropRight([1, 2, 3], 0);
|
|
|
4596 |
* // => [1, 2, 3]
|
|
|
4597 |
*/
|
|
|
4598 |
function dropRight(array, n, guard) {
|
|
|
4599 |
var length = array ? array.length : 0;
|
|
|
4600 |
if (!length) {
|
|
|
4601 |
return [];
|
|
|
4602 |
}
|
|
|
4603 |
if (guard ? isIterateeCall(array, n, guard) : n == null) {
|
|
|
4604 |
n = 1;
|
|
|
4605 |
}
|
|
|
4606 |
n = length - (+n || 0);
|
|
|
4607 |
return baseSlice(array, 0, n < 0 ? 0 : n);
|
|
|
4608 |
}
|
|
|
4609 |
|
|
|
4610 |
/**
|
|
|
4611 |
* Creates a slice of `array` excluding elements dropped from the end.
|
|
|
4612 |
* Elements are dropped until `predicate` returns falsey. The predicate is
|
|
|
4613 |
* bound to `thisArg` and invoked with three arguments: (value, index, array).
|
|
|
4614 |
*
|
|
|
4615 |
* If a property name is provided for `predicate` the created `_.property`
|
|
|
4616 |
* style callback returns the property value of the given element.
|
|
|
4617 |
*
|
|
|
4618 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
4619 |
* style callback returns `true` for elements that have a matching property
|
|
|
4620 |
* value, else `false`.
|
|
|
4621 |
*
|
|
|
4622 |
* If an object is provided for `predicate` the created `_.matches` style
|
|
|
4623 |
* callback returns `true` for elements that match the properties of the given
|
|
|
4624 |
* object, else `false`.
|
|
|
4625 |
*
|
|
|
4626 |
* @static
|
|
|
4627 |
* @memberOf _
|
|
|
4628 |
* @category Array
|
|
|
4629 |
* @param {Array} array The array to query.
|
|
|
4630 |
* @param {Function|Object|string} [predicate=_.identity] The function invoked
|
|
|
4631 |
* per iteration.
|
|
|
4632 |
* @param {*} [thisArg] The `this` binding of `predicate`.
|
|
|
4633 |
* @returns {Array} Returns the slice of `array`.
|
|
|
4634 |
* @example
|
|
|
4635 |
*
|
|
|
4636 |
* _.dropRightWhile([1, 2, 3], function(n) {
|
|
|
4637 |
* return n > 1;
|
|
|
4638 |
* });
|
|
|
4639 |
* // => [1]
|
|
|
4640 |
*
|
|
|
4641 |
* var users = [
|
|
|
4642 |
* { 'user': 'barney', 'active': true },
|
|
|
4643 |
* { 'user': 'fred', 'active': false },
|
|
|
4644 |
* { 'user': 'pebbles', 'active': false }
|
|
|
4645 |
* ];
|
|
|
4646 |
*
|
|
|
4647 |
* // using the `_.matches` callback shorthand
|
|
|
4648 |
* _.pluck(_.dropRightWhile(users, { 'user': 'pebbles', 'active': false }), 'user');
|
|
|
4649 |
* // => ['barney', 'fred']
|
|
|
4650 |
*
|
|
|
4651 |
* // using the `_.matchesProperty` callback shorthand
|
|
|
4652 |
* _.pluck(_.dropRightWhile(users, 'active', false), 'user');
|
|
|
4653 |
* // => ['barney']
|
|
|
4654 |
*
|
|
|
4655 |
* // using the `_.property` callback shorthand
|
|
|
4656 |
* _.pluck(_.dropRightWhile(users, 'active'), 'user');
|
|
|
4657 |
* // => ['barney', 'fred', 'pebbles']
|
|
|
4658 |
*/
|
|
|
4659 |
function dropRightWhile(array, predicate, thisArg) {
|
|
|
4660 |
return (array && array.length)
|
|
|
4661 |
? baseWhile(array, getCallback(predicate, thisArg, 3), true, true)
|
|
|
4662 |
: [];
|
|
|
4663 |
}
|
|
|
4664 |
|
|
|
4665 |
/**
|
|
|
4666 |
* Creates a slice of `array` excluding elements dropped from the beginning.
|
|
|
4667 |
* Elements are dropped until `predicate` returns falsey. The predicate is
|
|
|
4668 |
* bound to `thisArg` and invoked with three arguments: (value, index, array).
|
|
|
4669 |
*
|
|
|
4670 |
* If a property name is provided for `predicate` the created `_.property`
|
|
|
4671 |
* style callback returns the property value of the given element.
|
|
|
4672 |
*
|
|
|
4673 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
4674 |
* style callback returns `true` for elements that have a matching property
|
|
|
4675 |
* value, else `false`.
|
|
|
4676 |
*
|
|
|
4677 |
* If an object is provided for `predicate` the created `_.matches` style
|
|
|
4678 |
* callback returns `true` for elements that have the properties of the given
|
|
|
4679 |
* object, else `false`.
|
|
|
4680 |
*
|
|
|
4681 |
* @static
|
|
|
4682 |
* @memberOf _
|
|
|
4683 |
* @category Array
|
|
|
4684 |
* @param {Array} array The array to query.
|
|
|
4685 |
* @param {Function|Object|string} [predicate=_.identity] The function invoked
|
|
|
4686 |
* per iteration.
|
|
|
4687 |
* @param {*} [thisArg] The `this` binding of `predicate`.
|
|
|
4688 |
* @returns {Array} Returns the slice of `array`.
|
|
|
4689 |
* @example
|
|
|
4690 |
*
|
|
|
4691 |
* _.dropWhile([1, 2, 3], function(n) {
|
|
|
4692 |
* return n < 3;
|
|
442
|
4693 |
* });
|
|
498
|
4694 |
* // => [3]
|
|
|
4695 |
*
|
|
|
4696 |
* var users = [
|
|
|
4697 |
* { 'user': 'barney', 'active': false },
|
|
|
4698 |
* { 'user': 'fred', 'active': false },
|
|
|
4699 |
* { 'user': 'pebbles', 'active': true }
|
|
|
4700 |
* ];
|
|
|
4701 |
*
|
|
|
4702 |
* // using the `_.matches` callback shorthand
|
|
|
4703 |
* _.pluck(_.dropWhile(users, { 'user': 'barney', 'active': false }), 'user');
|
|
|
4704 |
* // => ['fred', 'pebbles']
|
|
|
4705 |
*
|
|
|
4706 |
* // using the `_.matchesProperty` callback shorthand
|
|
|
4707 |
* _.pluck(_.dropWhile(users, 'active', false), 'user');
|
|
|
4708 |
* // => ['pebbles']
|
|
|
4709 |
*
|
|
|
4710 |
* // using the `_.property` callback shorthand
|
|
|
4711 |
* _.pluck(_.dropWhile(users, 'active'), 'user');
|
|
|
4712 |
* // => ['barney', 'fred', 'pebbles']
|
|
|
4713 |
*/
|
|
|
4714 |
function dropWhile(array, predicate, thisArg) {
|
|
|
4715 |
return (array && array.length)
|
|
|
4716 |
? baseWhile(array, getCallback(predicate, thisArg, 3), true)
|
|
|
4717 |
: [];
|
|
|
4718 |
}
|
|
|
4719 |
|
|
|
4720 |
/**
|
|
|
4721 |
* Fills elements of `array` with `value` from `start` up to, but not
|
|
|
4722 |
* including, `end`.
|
|
|
4723 |
*
|
|
|
4724 |
* **Note:** This method mutates `array`.
|
|
|
4725 |
*
|
|
|
4726 |
* @static
|
|
|
4727 |
* @memberOf _
|
|
|
4728 |
* @category Array
|
|
|
4729 |
* @param {Array} array The array to fill.
|
|
|
4730 |
* @param {*} value The value to fill `array` with.
|
|
|
4731 |
* @param {number} [start=0] The start position.
|
|
|
4732 |
* @param {number} [end=array.length] The end position.
|
|
|
4733 |
* @returns {Array} Returns `array`.
|
|
|
4734 |
* @example
|
|
|
4735 |
*
|
|
|
4736 |
* var array = [1, 2, 3];
|
|
|
4737 |
*
|
|
|
4738 |
* _.fill(array, 'a');
|
|
|
4739 |
* console.log(array);
|
|
|
4740 |
* // => ['a', 'a', 'a']
|
|
|
4741 |
*
|
|
|
4742 |
* _.fill(Array(3), 2);
|
|
|
4743 |
* // => [2, 2, 2]
|
|
|
4744 |
*
|
|
|
4745 |
* _.fill([4, 6, 8], '*', 1, 2);
|
|
|
4746 |
* // => [4, '*', 8]
|
|
|
4747 |
*/
|
|
|
4748 |
function fill(array, value, start, end) {
|
|
|
4749 |
var length = array ? array.length : 0;
|
|
|
4750 |
if (!length) {
|
|
|
4751 |
return [];
|
|
|
4752 |
}
|
|
|
4753 |
if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {
|
|
|
4754 |
start = 0;
|
|
|
4755 |
end = length;
|
|
|
4756 |
}
|
|
|
4757 |
return baseFill(array, value, start, end);
|
|
|
4758 |
}
|
|
|
4759 |
|
|
|
4760 |
/**
|
|
|
4761 |
* This method is like `_.find` except that it returns the index of the first
|
|
|
4762 |
* element `predicate` returns truthy for instead of the element itself.
|
|
|
4763 |
*
|
|
|
4764 |
* If a property name is provided for `predicate` the created `_.property`
|
|
|
4765 |
* style callback returns the property value of the given element.
|
|
|
4766 |
*
|
|
|
4767 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
4768 |
* style callback returns `true` for elements that have a matching property
|
|
|
4769 |
* value, else `false`.
|
|
|
4770 |
*
|
|
|
4771 |
* If an object is provided for `predicate` the created `_.matches` style
|
|
|
4772 |
* callback returns `true` for elements that have the properties of the given
|
|
|
4773 |
* object, else `false`.
|
|
|
4774 |
*
|
|
|
4775 |
* @static
|
|
|
4776 |
* @memberOf _
|
|
|
4777 |
* @category Array
|
|
|
4778 |
* @param {Array} array The array to search.
|
|
|
4779 |
* @param {Function|Object|string} [predicate=_.identity] The function invoked
|
|
|
4780 |
* per iteration.
|
|
|
4781 |
* @param {*} [thisArg] The `this` binding of `predicate`.
|
|
|
4782 |
* @returns {number} Returns the index of the found element, else `-1`.
|
|
|
4783 |
* @example
|
|
|
4784 |
*
|
|
|
4785 |
* var users = [
|
|
|
4786 |
* { 'user': 'barney', 'active': false },
|
|
|
4787 |
* { 'user': 'fred', 'active': false },
|
|
|
4788 |
* { 'user': 'pebbles', 'active': true }
|
|
|
4789 |
* ];
|
|
|
4790 |
*
|
|
|
4791 |
* _.findIndex(users, function(chr) {
|
|
|
4792 |
* return chr.user == 'barney';
|
|
|
4793 |
* });
|
|
|
4794 |
* // => 0
|
|
|
4795 |
*
|
|
|
4796 |
* // using the `_.matches` callback shorthand
|
|
|
4797 |
* _.findIndex(users, { 'user': 'fred', 'active': false });
|
|
|
4798 |
* // => 1
|
|
|
4799 |
*
|
|
|
4800 |
* // using the `_.matchesProperty` callback shorthand
|
|
|
4801 |
* _.findIndex(users, 'active', false);
|
|
|
4802 |
* // => 0
|
|
|
4803 |
*
|
|
|
4804 |
* // using the `_.property` callback shorthand
|
|
|
4805 |
* _.findIndex(users, 'active');
|
|
|
4806 |
* // => 2
|
|
|
4807 |
*/
|
|
|
4808 |
var findIndex = createFindIndex();
|
|
|
4809 |
|
|
|
4810 |
/**
|
|
|
4811 |
* This method is like `_.findIndex` except that it iterates over elements
|
|
|
4812 |
* of `collection` from right to left.
|
|
|
4813 |
*
|
|
|
4814 |
* If a property name is provided for `predicate` the created `_.property`
|
|
|
4815 |
* style callback returns the property value of the given element.
|
|
|
4816 |
*
|
|
|
4817 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
4818 |
* style callback returns `true` for elements that have a matching property
|
|
|
4819 |
* value, else `false`.
|
|
|
4820 |
*
|
|
|
4821 |
* If an object is provided for `predicate` the created `_.matches` style
|
|
|
4822 |
* callback returns `true` for elements that have the properties of the given
|
|
|
4823 |
* object, else `false`.
|
|
|
4824 |
*
|
|
|
4825 |
* @static
|
|
|
4826 |
* @memberOf _
|
|
|
4827 |
* @category Array
|
|
|
4828 |
* @param {Array} array The array to search.
|
|
|
4829 |
* @param {Function|Object|string} [predicate=_.identity] The function invoked
|
|
|
4830 |
* per iteration.
|
|
|
4831 |
* @param {*} [thisArg] The `this` binding of `predicate`.
|
|
|
4832 |
* @returns {number} Returns the index of the found element, else `-1`.
|
|
|
4833 |
* @example
|
|
|
4834 |
*
|
|
|
4835 |
* var users = [
|
|
|
4836 |
* { 'user': 'barney', 'active': true },
|
|
|
4837 |
* { 'user': 'fred', 'active': false },
|
|
|
4838 |
* { 'user': 'pebbles', 'active': false }
|
|
|
4839 |
* ];
|
|
|
4840 |
*
|
|
|
4841 |
* _.findLastIndex(users, function(chr) {
|
|
|
4842 |
* return chr.user == 'pebbles';
|
|
|
4843 |
* });
|
|
|
4844 |
* // => 2
|
|
|
4845 |
*
|
|
|
4846 |
* // using the `_.matches` callback shorthand
|
|
|
4847 |
* _.findLastIndex(users, { 'user': 'barney', 'active': true });
|
|
|
4848 |
* // => 0
|
|
|
4849 |
*
|
|
|
4850 |
* // using the `_.matchesProperty` callback shorthand
|
|
|
4851 |
* _.findLastIndex(users, 'active', false);
|
|
|
4852 |
* // => 2
|
|
|
4853 |
*
|
|
|
4854 |
* // using the `_.property` callback shorthand
|
|
|
4855 |
* _.findLastIndex(users, 'active');
|
|
|
4856 |
* // => 0
|
|
|
4857 |
*/
|
|
|
4858 |
var findLastIndex = createFindIndex(true);
|
|
|
4859 |
|
|
|
4860 |
/**
|
|
|
4861 |
* Gets the first element of `array`.
|
|
|
4862 |
*
|
|
|
4863 |
* @static
|
|
|
4864 |
* @memberOf _
|
|
|
4865 |
* @alias head
|
|
|
4866 |
* @category Array
|
|
|
4867 |
* @param {Array} array The array to query.
|
|
|
4868 |
* @returns {*} Returns the first element of `array`.
|
|
|
4869 |
* @example
|
|
|
4870 |
*
|
|
|
4871 |
* _.first([1, 2, 3]);
|
|
|
4872 |
* // => 1
|
|
|
4873 |
*
|
|
|
4874 |
* _.first([]);
|
|
|
4875 |
* // => undefined
|
|
|
4876 |
*/
|
|
|
4877 |
function first(array) {
|
|
|
4878 |
return array ? array[0] : undefined;
|
|
|
4879 |
}
|
|
|
4880 |
|
|
|
4881 |
/**
|
|
|
4882 |
* Flattens a nested array. If `isDeep` is `true` the array is recursively
|
|
|
4883 |
* flattened, otherwise it's only flattened a single level.
|
|
|
4884 |
*
|
|
|
4885 |
* @static
|
|
|
4886 |
* @memberOf _
|
|
|
4887 |
* @category Array
|
|
|
4888 |
* @param {Array} array The array to flatten.
|
|
|
4889 |
* @param {boolean} [isDeep] Specify a deep flatten.
|
|
|
4890 |
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
|
|
|
4891 |
* @returns {Array} Returns the new flattened array.
|
|
|
4892 |
* @example
|
|
|
4893 |
*
|
|
|
4894 |
* _.flatten([1, [2, 3, [4]]]);
|
|
|
4895 |
* // => [1, 2, 3, [4]]
|
|
|
4896 |
*
|
|
|
4897 |
* // using `isDeep`
|
|
|
4898 |
* _.flatten([1, [2, 3, [4]]], true);
|
|
|
4899 |
* // => [1, 2, 3, 4]
|
|
|
4900 |
*/
|
|
|
4901 |
function flatten(array, isDeep, guard) {
|
|
|
4902 |
var length = array ? array.length : 0;
|
|
|
4903 |
if (guard && isIterateeCall(array, isDeep, guard)) {
|
|
|
4904 |
isDeep = false;
|
|
|
4905 |
}
|
|
|
4906 |
return length ? baseFlatten(array, isDeep) : [];
|
|
|
4907 |
}
|
|
|
4908 |
|
|
|
4909 |
/**
|
|
|
4910 |
* Recursively flattens a nested array.
|
|
|
4911 |
*
|
|
|
4912 |
* @static
|
|
|
4913 |
* @memberOf _
|
|
|
4914 |
* @category Array
|
|
|
4915 |
* @param {Array} array The array to recursively flatten.
|
|
|
4916 |
* @returns {Array} Returns the new flattened array.
|
|
|
4917 |
* @example
|
|
|
4918 |
*
|
|
|
4919 |
* _.flattenDeep([1, [2, 3, [4]]]);
|
|
|
4920 |
* // => [1, 2, 3, 4]
|
|
|
4921 |
*/
|
|
|
4922 |
function flattenDeep(array) {
|
|
|
4923 |
var length = array ? array.length : 0;
|
|
|
4924 |
return length ? baseFlatten(array, true) : [];
|
|
|
4925 |
}
|
|
|
4926 |
|
|
|
4927 |
/**
|
|
|
4928 |
* Gets the index at which the first occurrence of `value` is found in `array`
|
|
|
4929 |
* using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
|
|
|
4930 |
* for equality comparisons. If `fromIndex` is negative, it's used as the offset
|
|
|
4931 |
* from the end of `array`. If `array` is sorted providing `true` for `fromIndex`
|
|
|
4932 |
* performs a faster binary search.
|
|
|
4933 |
*
|
|
|
4934 |
* @static
|
|
|
4935 |
* @memberOf _
|
|
|
4936 |
* @category Array
|
|
|
4937 |
* @param {Array} array The array to search.
|
|
|
4938 |
* @param {*} value The value to search for.
|
|
|
4939 |
* @param {boolean|number} [fromIndex=0] The index to search from or `true`
|
|
|
4940 |
* to perform a binary search on a sorted array.
|
|
|
4941 |
* @returns {number} Returns the index of the matched value, else `-1`.
|
|
|
4942 |
* @example
|
|
|
4943 |
*
|
|
|
4944 |
* _.indexOf([1, 2, 1, 2], 2);
|
|
|
4945 |
* // => 1
|
|
|
4946 |
*
|
|
|
4947 |
* // using `fromIndex`
|
|
|
4948 |
* _.indexOf([1, 2, 1, 2], 2, 2);
|
|
|
4949 |
* // => 3
|
|
|
4950 |
*
|
|
|
4951 |
* // performing a binary search
|
|
|
4952 |
* _.indexOf([1, 1, 2, 2], 2, true);
|
|
|
4953 |
* // => 2
|
|
|
4954 |
*/
|
|
|
4955 |
function indexOf(array, value, fromIndex) {
|
|
|
4956 |
var length = array ? array.length : 0;
|
|
|
4957 |
if (!length) {
|
|
|
4958 |
return -1;
|
|
|
4959 |
}
|
|
|
4960 |
if (typeof fromIndex == 'number') {
|
|
|
4961 |
fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : fromIndex;
|
|
|
4962 |
} else if (fromIndex) {
|
|
|
4963 |
var index = binaryIndex(array, value);
|
|
|
4964 |
if (index < length &&
|
|
|
4965 |
(value === value ? (value === array[index]) : (array[index] !== array[index]))) {
|
|
|
4966 |
return index;
|
|
|
4967 |
}
|
|
|
4968 |
return -1;
|
|
|
4969 |
}
|
|
|
4970 |
return baseIndexOf(array, value, fromIndex || 0);
|
|
|
4971 |
}
|
|
|
4972 |
|
|
|
4973 |
/**
|
|
|
4974 |
* Gets all but the last element of `array`.
|
|
|
4975 |
*
|
|
|
4976 |
* @static
|
|
|
4977 |
* @memberOf _
|
|
|
4978 |
* @category Array
|
|
|
4979 |
* @param {Array} array The array to query.
|
|
|
4980 |
* @returns {Array} Returns the slice of `array`.
|
|
|
4981 |
* @example
|
|
|
4982 |
*
|
|
|
4983 |
* _.initial([1, 2, 3]);
|
|
|
4984 |
* // => [1, 2]
|
|
|
4985 |
*/
|
|
|
4986 |
function initial(array) {
|
|
|
4987 |
return dropRight(array, 1);
|
|
|
4988 |
}
|
|
|
4989 |
|
|
|
4990 |
/**
|
|
|
4991 |
* Creates an array of unique values that are included in all of the provided
|
|
|
4992 |
* arrays using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
|
|
|
4993 |
* for equality comparisons.
|
|
|
4994 |
*
|
|
|
4995 |
* @static
|
|
|
4996 |
* @memberOf _
|
|
|
4997 |
* @category Array
|
|
|
4998 |
* @param {...Array} [arrays] The arrays to inspect.
|
|
|
4999 |
* @returns {Array} Returns the new array of shared values.
|
|
|
5000 |
* @example
|
|
|
5001 |
* _.intersection([1, 2], [4, 2], [2, 1]);
|
|
|
5002 |
* // => [2]
|
|
|
5003 |
*/
|
|
|
5004 |
var intersection = restParam(function(arrays) {
|
|
|
5005 |
var othLength = arrays.length,
|
|
|
5006 |
othIndex = othLength,
|
|
|
5007 |
caches = Array(length),
|
|
|
5008 |
indexOf = getIndexOf(),
|
|
|
5009 |
isCommon = indexOf === baseIndexOf,
|
|
|
5010 |
result = [];
|
|
|
5011 |
|
|
|
5012 |
while (othIndex--) {
|
|
|
5013 |
var value = arrays[othIndex] = isArrayLike(value = arrays[othIndex]) ? value : [];
|
|
|
5014 |
caches[othIndex] = (isCommon && value.length >= 120) ? createCache(othIndex && value) : null;
|
|
|
5015 |
}
|
|
|
5016 |
var array = arrays[0],
|
|
|
5017 |
index = -1,
|
|
|
5018 |
length = array ? array.length : 0,
|
|
|
5019 |
seen = caches[0];
|
|
|
5020 |
|
|
|
5021 |
outer:
|
|
|
5022 |
while (++index < length) {
|
|
|
5023 |
value = array[index];
|
|
|
5024 |
if ((seen ? cacheIndexOf(seen, value) : indexOf(result, value, 0)) < 0) {
|
|
|
5025 |
var othIndex = othLength;
|
|
|
5026 |
while (--othIndex) {
|
|
|
5027 |
var cache = caches[othIndex];
|
|
|
5028 |
if ((cache ? cacheIndexOf(cache, value) : indexOf(arrays[othIndex], value, 0)) < 0) {
|
|
|
5029 |
continue outer;
|
|
|
5030 |
}
|
|
|
5031 |
}
|
|
|
5032 |
if (seen) {
|
|
|
5033 |
seen.push(value);
|
|
|
5034 |
}
|
|
|
5035 |
result.push(value);
|
|
|
5036 |
}
|
|
|
5037 |
}
|
|
442
|
5038 |
return result;
|
|
498
|
5039 |
});
|
|
|
5040 |
|
|
|
5041 |
/**
|
|
|
5042 |
* Gets the last element of `array`.
|
|
|
5043 |
*
|
|
|
5044 |
* @static
|
|
|
5045 |
* @memberOf _
|
|
|
5046 |
* @category Array
|
|
|
5047 |
* @param {Array} array The array to query.
|
|
|
5048 |
* @returns {*} Returns the last element of `array`.
|
|
|
5049 |
* @example
|
|
|
5050 |
*
|
|
|
5051 |
* _.last([1, 2, 3]);
|
|
|
5052 |
* // => 3
|
|
|
5053 |
*/
|
|
|
5054 |
function last(array) {
|
|
|
5055 |
var length = array ? array.length : 0;
|
|
|
5056 |
return length ? array[length - 1] : undefined;
|
|
|
5057 |
}
|
|
|
5058 |
|
|
|
5059 |
/**
|
|
|
5060 |
* This method is like `_.indexOf` except that it iterates over elements of
|
|
|
5061 |
* `array` from right to left.
|
|
|
5062 |
*
|
|
|
5063 |
* @static
|
|
|
5064 |
* @memberOf _
|
|
|
5065 |
* @category Array
|
|
|
5066 |
* @param {Array} array The array to search.
|
|
|
5067 |
* @param {*} value The value to search for.
|
|
|
5068 |
* @param {boolean|number} [fromIndex=array.length-1] The index to search from
|
|
|
5069 |
* or `true` to perform a binary search on a sorted array.
|
|
|
5070 |
* @returns {number} Returns the index of the matched value, else `-1`.
|
|
|
5071 |
* @example
|
|
|
5072 |
*
|
|
|
5073 |
* _.lastIndexOf([1, 2, 1, 2], 2);
|
|
|
5074 |
* // => 3
|
|
|
5075 |
*
|
|
|
5076 |
* // using `fromIndex`
|
|
|
5077 |
* _.lastIndexOf([1, 2, 1, 2], 2, 2);
|
|
|
5078 |
* // => 1
|
|
|
5079 |
*
|
|
|
5080 |
* // performing a binary search
|
|
|
5081 |
* _.lastIndexOf([1, 1, 2, 2], 2, true);
|
|
|
5082 |
* // => 3
|
|
|
5083 |
*/
|
|
|
5084 |
function lastIndexOf(array, value, fromIndex) {
|
|
|
5085 |
var length = array ? array.length : 0;
|
|
|
5086 |
if (!length) {
|
|
|
5087 |
return -1;
|
|
|
5088 |
}
|
|
|
5089 |
var index = length;
|
|
|
5090 |
if (typeof fromIndex == 'number') {
|
|
|
5091 |
index = (fromIndex < 0 ? nativeMax(length + fromIndex, 0) : nativeMin(fromIndex || 0, length - 1)) + 1;
|
|
|
5092 |
} else if (fromIndex) {
|
|
|
5093 |
index = binaryIndex(array, value, true) - 1;
|
|
|
5094 |
var other = array[index];
|
|
|
5095 |
if (value === value ? (value === other) : (other !== other)) {
|
|
|
5096 |
return index;
|
|
|
5097 |
}
|
|
|
5098 |
return -1;
|
|
|
5099 |
}
|
|
|
5100 |
if (value !== value) {
|
|
|
5101 |
return indexOfNaN(array, index, true);
|
|
|
5102 |
}
|
|
|
5103 |
while (index--) {
|
|
|
5104 |
if (array[index] === value) {
|
|
|
5105 |
return index;
|
|
|
5106 |
}
|
|
|
5107 |
}
|
|
|
5108 |
return -1;
|
|
|
5109 |
}
|
|
|
5110 |
|
|
|
5111 |
/**
|
|
|
5112 |
* Removes all provided values from `array` using
|
|
|
5113 |
* [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
|
|
|
5114 |
* for equality comparisons.
|
|
|
5115 |
*
|
|
|
5116 |
* **Note:** Unlike `_.without`, this method mutates `array`.
|
|
|
5117 |
*
|
|
|
5118 |
* @static
|
|
|
5119 |
* @memberOf _
|
|
|
5120 |
* @category Array
|
|
|
5121 |
* @param {Array} array The array to modify.
|
|
|
5122 |
* @param {...*} [values] The values to remove.
|
|
|
5123 |
* @returns {Array} Returns `array`.
|
|
|
5124 |
* @example
|
|
|
5125 |
*
|
|
|
5126 |
* var array = [1, 2, 3, 1, 2, 3];
|
|
|
5127 |
*
|
|
|
5128 |
* _.pull(array, 2, 3);
|
|
|
5129 |
* console.log(array);
|
|
|
5130 |
* // => [1, 1]
|
|
|
5131 |
*/
|
|
|
5132 |
function pull() {
|
|
442
|
5133 |
var args = arguments,
|
|
498
|
5134 |
array = args[0];
|
|
|
5135 |
|
|
|
5136 |
if (!(array && array.length)) {
|
|
|
5137 |
return array;
|
|
|
5138 |
}
|
|
|
5139 |
var index = 0,
|
|
|
5140 |
indexOf = getIndexOf(),
|
|
|
5141 |
length = args.length;
|
|
442
|
5142 |
|
|
|
5143 |
while (++index < length) {
|
|
498
|
5144 |
var fromIndex = 0,
|
|
|
5145 |
value = args[index];
|
|
|
5146 |
|
|
|
5147 |
while ((fromIndex = indexOf(array, value, fromIndex)) > -1) {
|
|
|
5148 |
splice.call(array, fromIndex, 1);
|
|
|
5149 |
}
|
|
|
5150 |
}
|
|
|
5151 |
return array;
|
|
|
5152 |
}
|
|
|
5153 |
|
|
|
5154 |
/**
|
|
|
5155 |
* Removes elements from `array` corresponding to the given indexes and returns
|
|
|
5156 |
* an array of the removed elements. Indexes may be specified as an array of
|
|
|
5157 |
* indexes or as individual arguments.
|
|
|
5158 |
*
|
|
|
5159 |
* **Note:** Unlike `_.at`, this method mutates `array`.
|
|
|
5160 |
*
|
|
|
5161 |
* @static
|
|
|
5162 |
* @memberOf _
|
|
|
5163 |
* @category Array
|
|
|
5164 |
* @param {Array} array The array to modify.
|
|
|
5165 |
* @param {...(number|number[])} [indexes] The indexes of elements to remove,
|
|
|
5166 |
* specified as individual indexes or arrays of indexes.
|
|
|
5167 |
* @returns {Array} Returns the new array of removed elements.
|
|
|
5168 |
* @example
|
|
|
5169 |
*
|
|
|
5170 |
* var array = [5, 10, 15, 20];
|
|
|
5171 |
* var evens = _.pullAt(array, 1, 3);
|
|
|
5172 |
*
|
|
|
5173 |
* console.log(array);
|
|
|
5174 |
* // => [5, 15]
|
|
|
5175 |
*
|
|
|
5176 |
* console.log(evens);
|
|
|
5177 |
* // => [10, 20]
|
|
|
5178 |
*/
|
|
|
5179 |
var pullAt = restParam(function(array, indexes) {
|
|
|
5180 |
indexes = baseFlatten(indexes);
|
|
|
5181 |
|
|
|
5182 |
var result = baseAt(array, indexes);
|
|
|
5183 |
basePullAt(array, indexes.sort(baseCompareAscending));
|
|
|
5184 |
return result;
|
|
|
5185 |
});
|
|
|
5186 |
|
|
|
5187 |
/**
|
|
|
5188 |
* Removes all elements from `array` that `predicate` returns truthy for
|
|
|
5189 |
* and returns an array of the removed elements. The predicate is bound to
|
|
|
5190 |
* `thisArg` and invoked with three arguments: (value, index, array).
|
|
|
5191 |
*
|
|
|
5192 |
* If a property name is provided for `predicate` the created `_.property`
|
|
|
5193 |
* style callback returns the property value of the given element.
|
|
|
5194 |
*
|
|
|
5195 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
5196 |
* style callback returns `true` for elements that have a matching property
|
|
|
5197 |
* value, else `false`.
|
|
|
5198 |
*
|
|
|
5199 |
* If an object is provided for `predicate` the created `_.matches` style
|
|
|
5200 |
* callback returns `true` for elements that have the properties of the given
|
|
|
5201 |
* object, else `false`.
|
|
|
5202 |
*
|
|
|
5203 |
* **Note:** Unlike `_.filter`, this method mutates `array`.
|
|
|
5204 |
*
|
|
|
5205 |
* @static
|
|
|
5206 |
* @memberOf _
|
|
|
5207 |
* @category Array
|
|
|
5208 |
* @param {Array} array The array to modify.
|
|
|
5209 |
* @param {Function|Object|string} [predicate=_.identity] The function invoked
|
|
|
5210 |
* per iteration.
|
|
|
5211 |
* @param {*} [thisArg] The `this` binding of `predicate`.
|
|
|
5212 |
* @returns {Array} Returns the new array of removed elements.
|
|
|
5213 |
* @example
|
|
|
5214 |
*
|
|
|
5215 |
* var array = [1, 2, 3, 4];
|
|
|
5216 |
* var evens = _.remove(array, function(n) {
|
|
|
5217 |
* return n % 2 == 0;
|
|
442
|
5218 |
* });
|
|
498
|
5219 |
*
|
|
|
5220 |
* console.log(array);
|
|
|
5221 |
* // => [1, 3]
|
|
|
5222 |
*
|
|
|
5223 |
* console.log(evens);
|
|
|
5224 |
* // => [2, 4]
|
|
|
5225 |
*/
|
|
|
5226 |
function remove(array, predicate, thisArg) {
|
|
|
5227 |
var result = [];
|
|
|
5228 |
if (!(array && array.length)) {
|
|
|
5229 |
return result;
|
|
|
5230 |
}
|
|
|
5231 |
var index = -1,
|
|
|
5232 |
indexes = [],
|
|
|
5233 |
length = array.length;
|
|
|
5234 |
|
|
|
5235 |
predicate = getCallback(predicate, thisArg, 3);
|
|
|
5236 |
while (++index < length) {
|
|
|
5237 |
var value = array[index];
|
|
|
5238 |
if (predicate(value, index, array)) {
|
|
|
5239 |
result.push(value);
|
|
|
5240 |
indexes.push(index);
|
|
|
5241 |
}
|
|
|
5242 |
}
|
|
|
5243 |
basePullAt(array, indexes);
|
|
442
|
5244 |
return result;
|
|
|
5245 |
}
|
|
|
5246 |
|
|
|
5247 |
/**
|
|
498
|
5248 |
* Gets all but the first element of `array`.
|
|
|
5249 |
*
|
|
|
5250 |
* @static
|
|
|
5251 |
* @memberOf _
|
|
|
5252 |
* @alias tail
|
|
|
5253 |
* @category Array
|
|
|
5254 |
* @param {Array} array The array to query.
|
|
|
5255 |
* @returns {Array} Returns the slice of `array`.
|
|
|
5256 |
* @example
|
|
|
5257 |
*
|
|
|
5258 |
* _.rest([1, 2, 3]);
|
|
|
5259 |
* // => [2, 3]
|
|
|
5260 |
*/
|
|
|
5261 |
function rest(array) {
|
|
|
5262 |
return drop(array, 1);
|
|
|
5263 |
}
|
|
|
5264 |
|
|
|
5265 |
/**
|
|
|
5266 |
* Creates a slice of `array` from `start` up to, but not including, `end`.
|
|
|
5267 |
*
|
|
|
5268 |
* **Note:** This method is used instead of `Array#slice` to support node
|
|
|
5269 |
* lists in IE < 9 and to ensure dense arrays are returned.
|
|
|
5270 |
*
|
|
|
5271 |
* @static
|
|
|
5272 |
* @memberOf _
|
|
|
5273 |
* @category Array
|
|
|
5274 |
* @param {Array} array The array to slice.
|
|
|
5275 |
* @param {number} [start=0] The start position.
|
|
|
5276 |
* @param {number} [end=array.length] The end position.
|
|
|
5277 |
* @returns {Array} Returns the slice of `array`.
|
|
|
5278 |
*/
|
|
|
5279 |
function slice(array, start, end) {
|
|
|
5280 |
var length = array ? array.length : 0;
|
|
|
5281 |
if (!length) {
|
|
|
5282 |
return [];
|
|
|
5283 |
}
|
|
|
5284 |
if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {
|
|
|
5285 |
start = 0;
|
|
|
5286 |
end = length;
|
|
|
5287 |
}
|
|
|
5288 |
return baseSlice(array, start, end);
|
|
|
5289 |
}
|
|
|
5290 |
|
|
|
5291 |
/**
|
|
|
5292 |
* Uses a binary search to determine the lowest index at which `value` should
|
|
|
5293 |
* be inserted into `array` in order to maintain its sort order. If an iteratee
|
|
|
5294 |
* function is provided it's invoked for `value` and each element of `array`
|
|
|
5295 |
* to compute their sort ranking. The iteratee is bound to `thisArg` and
|
|
|
5296 |
* invoked with one argument; (value).
|
|
|
5297 |
*
|
|
|
5298 |
* If a property name is provided for `iteratee` the created `_.property`
|
|
|
5299 |
* style callback returns the property value of the given element.
|
|
|
5300 |
*
|
|
|
5301 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
5302 |
* style callback returns `true` for elements that have a matching property
|
|
|
5303 |
* value, else `false`.
|
|
|
5304 |
*
|
|
|
5305 |
* If an object is provided for `iteratee` the created `_.matches` style
|
|
|
5306 |
* callback returns `true` for elements that have the properties of the given
|
|
|
5307 |
* object, else `false`.
|
|
|
5308 |
*
|
|
|
5309 |
* @static
|
|
|
5310 |
* @memberOf _
|
|
|
5311 |
* @category Array
|
|
|
5312 |
* @param {Array} array The sorted array to inspect.
|
|
|
5313 |
* @param {*} value The value to evaluate.
|
|
|
5314 |
* @param {Function|Object|string} [iteratee=_.identity] The function invoked
|
|
|
5315 |
* per iteration.
|
|
|
5316 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
|
5317 |
* @returns {number} Returns the index at which `value` should be inserted
|
|
|
5318 |
* into `array`.
|
|
|
5319 |
* @example
|
|
|
5320 |
*
|
|
|
5321 |
* _.sortedIndex([30, 50], 40);
|
|
|
5322 |
* // => 1
|
|
|
5323 |
*
|
|
|
5324 |
* _.sortedIndex([4, 4, 5, 5], 5);
|
|
|
5325 |
* // => 2
|
|
|
5326 |
*
|
|
|
5327 |
* var dict = { 'data': { 'thirty': 30, 'forty': 40, 'fifty': 50 } };
|
|
|
5328 |
*
|
|
|
5329 |
* // using an iteratee function
|
|
|
5330 |
* _.sortedIndex(['thirty', 'fifty'], 'forty', function(word) {
|
|
|
5331 |
* return this.data[word];
|
|
|
5332 |
* }, dict);
|
|
|
5333 |
* // => 1
|
|
|
5334 |
*
|
|
|
5335 |
* // using the `_.property` callback shorthand
|
|
|
5336 |
* _.sortedIndex([{ 'x': 30 }, { 'x': 50 }], { 'x': 40 }, 'x');
|
|
|
5337 |
* // => 1
|
|
|
5338 |
*/
|
|
|
5339 |
var sortedIndex = createSortedIndex();
|
|
|
5340 |
|
|
|
5341 |
/**
|
|
|
5342 |
* This method is like `_.sortedIndex` except that it returns the highest
|
|
|
5343 |
* index at which `value` should be inserted into `array` in order to
|
|
|
5344 |
* maintain its sort order.
|
|
|
5345 |
*
|
|
|
5346 |
* @static
|
|
|
5347 |
* @memberOf _
|
|
|
5348 |
* @category Array
|
|
|
5349 |
* @param {Array} array The sorted array to inspect.
|
|
|
5350 |
* @param {*} value The value to evaluate.
|
|
|
5351 |
* @param {Function|Object|string} [iteratee=_.identity] The function invoked
|
|
|
5352 |
* per iteration.
|
|
|
5353 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
|
5354 |
* @returns {number} Returns the index at which `value` should be inserted
|
|
|
5355 |
* into `array`.
|
|
|
5356 |
* @example
|
|
|
5357 |
*
|
|
|
5358 |
* _.sortedLastIndex([4, 4, 5, 5], 5);
|
|
|
5359 |
* // => 4
|
|
|
5360 |
*/
|
|
|
5361 |
var sortedLastIndex = createSortedIndex(true);
|
|
|
5362 |
|
|
|
5363 |
/**
|
|
|
5364 |
* Creates a slice of `array` with `n` elements taken from the beginning.
|
|
|
5365 |
*
|
|
|
5366 |
* @static
|
|
|
5367 |
* @memberOf _
|
|
|
5368 |
* @category Array
|
|
|
5369 |
* @param {Array} array The array to query.
|
|
|
5370 |
* @param {number} [n=1] The number of elements to take.
|
|
|
5371 |
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
|
|
|
5372 |
* @returns {Array} Returns the slice of `array`.
|
|
|
5373 |
* @example
|
|
|
5374 |
*
|
|
|
5375 |
* _.take([1, 2, 3]);
|
|
|
5376 |
* // => [1]
|
|
|
5377 |
*
|
|
|
5378 |
* _.take([1, 2, 3], 2);
|
|
|
5379 |
* // => [1, 2]
|
|
|
5380 |
*
|
|
|
5381 |
* _.take([1, 2, 3], 5);
|
|
|
5382 |
* // => [1, 2, 3]
|
|
|
5383 |
*
|
|
|
5384 |
* _.take([1, 2, 3], 0);
|
|
|
5385 |
* // => []
|
|
|
5386 |
*/
|
|
|
5387 |
function take(array, n, guard) {
|
|
|
5388 |
var length = array ? array.length : 0;
|
|
|
5389 |
if (!length) {
|
|
|
5390 |
return [];
|
|
|
5391 |
}
|
|
|
5392 |
if (guard ? isIterateeCall(array, n, guard) : n == null) {
|
|
|
5393 |
n = 1;
|
|
|
5394 |
}
|
|
|
5395 |
return baseSlice(array, 0, n < 0 ? 0 : n);
|
|
|
5396 |
}
|
|
|
5397 |
|
|
|
5398 |
/**
|
|
|
5399 |
* Creates a slice of `array` with `n` elements taken from the end.
|
|
|
5400 |
*
|
|
|
5401 |
* @static
|
|
|
5402 |
* @memberOf _
|
|
|
5403 |
* @category Array
|
|
|
5404 |
* @param {Array} array The array to query.
|
|
|
5405 |
* @param {number} [n=1] The number of elements to take.
|
|
|
5406 |
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
|
|
|
5407 |
* @returns {Array} Returns the slice of `array`.
|
|
|
5408 |
* @example
|
|
|
5409 |
*
|
|
|
5410 |
* _.takeRight([1, 2, 3]);
|
|
|
5411 |
* // => [3]
|
|
|
5412 |
*
|
|
|
5413 |
* _.takeRight([1, 2, 3], 2);
|
|
|
5414 |
* // => [2, 3]
|
|
|
5415 |
*
|
|
|
5416 |
* _.takeRight([1, 2, 3], 5);
|
|
|
5417 |
* // => [1, 2, 3]
|
|
|
5418 |
*
|
|
|
5419 |
* _.takeRight([1, 2, 3], 0);
|
|
|
5420 |
* // => []
|
|
|
5421 |
*/
|
|
|
5422 |
function takeRight(array, n, guard) {
|
|
|
5423 |
var length = array ? array.length : 0;
|
|
|
5424 |
if (!length) {
|
|
|
5425 |
return [];
|
|
|
5426 |
}
|
|
|
5427 |
if (guard ? isIterateeCall(array, n, guard) : n == null) {
|
|
|
5428 |
n = 1;
|
|
|
5429 |
}
|
|
|
5430 |
n = length - (+n || 0);
|
|
|
5431 |
return baseSlice(array, n < 0 ? 0 : n);
|
|
|
5432 |
}
|
|
|
5433 |
|
|
|
5434 |
/**
|
|
|
5435 |
* Creates a slice of `array` with elements taken from the end. Elements are
|
|
|
5436 |
* taken until `predicate` returns falsey. The predicate is bound to `thisArg`
|
|
|
5437 |
* and invoked with three arguments: (value, index, array).
|
|
|
5438 |
*
|
|
|
5439 |
* If a property name is provided for `predicate` the created `_.property`
|
|
|
5440 |
* style callback returns the property value of the given element.
|
|
|
5441 |
*
|
|
|
5442 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
5443 |
* style callback returns `true` for elements that have a matching property
|
|
|
5444 |
* value, else `false`.
|
|
|
5445 |
*
|
|
|
5446 |
* If an object is provided for `predicate` the created `_.matches` style
|
|
|
5447 |
* callback returns `true` for elements that have the properties of the given
|
|
|
5448 |
* object, else `false`.
|
|
|
5449 |
*
|
|
|
5450 |
* @static
|
|
|
5451 |
* @memberOf _
|
|
|
5452 |
* @category Array
|
|
|
5453 |
* @param {Array} array The array to query.
|
|
|
5454 |
* @param {Function|Object|string} [predicate=_.identity] The function invoked
|
|
|
5455 |
* per iteration.
|
|
|
5456 |
* @param {*} [thisArg] The `this` binding of `predicate`.
|
|
|
5457 |
* @returns {Array} Returns the slice of `array`.
|
|
|
5458 |
* @example
|
|
|
5459 |
*
|
|
|
5460 |
* _.takeRightWhile([1, 2, 3], function(n) {
|
|
|
5461 |
* return n > 1;
|
|
|
5462 |
* });
|
|
|
5463 |
* // => [2, 3]
|
|
|
5464 |
*
|
|
|
5465 |
* var users = [
|
|
|
5466 |
* { 'user': 'barney', 'active': true },
|
|
|
5467 |
* { 'user': 'fred', 'active': false },
|
|
|
5468 |
* { 'user': 'pebbles', 'active': false }
|
|
|
5469 |
* ];
|
|
|
5470 |
*
|
|
|
5471 |
* // using the `_.matches` callback shorthand
|
|
|
5472 |
* _.pluck(_.takeRightWhile(users, { 'user': 'pebbles', 'active': false }), 'user');
|
|
|
5473 |
* // => ['pebbles']
|
|
|
5474 |
*
|
|
|
5475 |
* // using the `_.matchesProperty` callback shorthand
|
|
|
5476 |
* _.pluck(_.takeRightWhile(users, 'active', false), 'user');
|
|
|
5477 |
* // => ['fred', 'pebbles']
|
|
|
5478 |
*
|
|
|
5479 |
* // using the `_.property` callback shorthand
|
|
|
5480 |
* _.pluck(_.takeRightWhile(users, 'active'), 'user');
|
|
|
5481 |
* // => []
|
|
|
5482 |
*/
|
|
|
5483 |
function takeRightWhile(array, predicate, thisArg) {
|
|
|
5484 |
return (array && array.length)
|
|
|
5485 |
? baseWhile(array, getCallback(predicate, thisArg, 3), false, true)
|
|
|
5486 |
: [];
|
|
|
5487 |
}
|
|
|
5488 |
|
|
|
5489 |
/**
|
|
|
5490 |
* Creates a slice of `array` with elements taken from the beginning. Elements
|
|
|
5491 |
* are taken until `predicate` returns falsey. The predicate is bound to
|
|
|
5492 |
* `thisArg` and invoked with three arguments: (value, index, array).
|
|
|
5493 |
*
|
|
|
5494 |
* If a property name is provided for `predicate` the created `_.property`
|
|
|
5495 |
* style callback returns the property value of the given element.
|
|
|
5496 |
*
|
|
|
5497 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
5498 |
* style callback returns `true` for elements that have a matching property
|
|
|
5499 |
* value, else `false`.
|
|
|
5500 |
*
|
|
|
5501 |
* If an object is provided for `predicate` the created `_.matches` style
|
|
|
5502 |
* callback returns `true` for elements that have the properties of the given
|
|
|
5503 |
* object, else `false`.
|
|
|
5504 |
*
|
|
|
5505 |
* @static
|
|
|
5506 |
* @memberOf _
|
|
|
5507 |
* @category Array
|
|
|
5508 |
* @param {Array} array The array to query.
|
|
|
5509 |
* @param {Function|Object|string} [predicate=_.identity] The function invoked
|
|
|
5510 |
* per iteration.
|
|
|
5511 |
* @param {*} [thisArg] The `this` binding of `predicate`.
|
|
|
5512 |
* @returns {Array} Returns the slice of `array`.
|
|
|
5513 |
* @example
|
|
|
5514 |
*
|
|
|
5515 |
* _.takeWhile([1, 2, 3], function(n) {
|
|
|
5516 |
* return n < 3;
|
|
|
5517 |
* });
|
|
|
5518 |
* // => [1, 2]
|
|
|
5519 |
*
|
|
|
5520 |
* var users = [
|
|
|
5521 |
* { 'user': 'barney', 'active': false },
|
|
|
5522 |
* { 'user': 'fred', 'active': false},
|
|
|
5523 |
* { 'user': 'pebbles', 'active': true }
|
|
|
5524 |
* ];
|
|
|
5525 |
*
|
|
|
5526 |
* // using the `_.matches` callback shorthand
|
|
|
5527 |
* _.pluck(_.takeWhile(users, { 'user': 'barney', 'active': false }), 'user');
|
|
|
5528 |
* // => ['barney']
|
|
|
5529 |
*
|
|
|
5530 |
* // using the `_.matchesProperty` callback shorthand
|
|
|
5531 |
* _.pluck(_.takeWhile(users, 'active', false), 'user');
|
|
|
5532 |
* // => ['barney', 'fred']
|
|
|
5533 |
*
|
|
|
5534 |
* // using the `_.property` callback shorthand
|
|
|
5535 |
* _.pluck(_.takeWhile(users, 'active'), 'user');
|
|
|
5536 |
* // => []
|
|
|
5537 |
*/
|
|
|
5538 |
function takeWhile(array, predicate, thisArg) {
|
|
|
5539 |
return (array && array.length)
|
|
|
5540 |
? baseWhile(array, getCallback(predicate, thisArg, 3))
|
|
|
5541 |
: [];
|
|
|
5542 |
}
|
|
|
5543 |
|
|
|
5544 |
/**
|
|
|
5545 |
* Creates an array of unique values, in order, from all of the provided arrays
|
|
|
5546 |
* using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
|
|
|
5547 |
* for equality comparisons.
|
|
|
5548 |
*
|
|
|
5549 |
* @static
|
|
|
5550 |
* @memberOf _
|
|
|
5551 |
* @category Array
|
|
|
5552 |
* @param {...Array} [arrays] The arrays to inspect.
|
|
|
5553 |
* @returns {Array} Returns the new array of combined values.
|
|
|
5554 |
* @example
|
|
|
5555 |
*
|
|
|
5556 |
* _.union([1, 2], [4, 2], [2, 1]);
|
|
|
5557 |
* // => [1, 2, 4]
|
|
|
5558 |
*/
|
|
|
5559 |
var union = restParam(function(arrays) {
|
|
|
5560 |
return baseUniq(baseFlatten(arrays, false, true));
|
|
|
5561 |
});
|
|
|
5562 |
|
|
|
5563 |
/**
|
|
|
5564 |
* Creates a duplicate-free version of an array, using
|
|
|
5565 |
* [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
|
|
|
5566 |
* for equality comparisons, in which only the first occurence of each element
|
|
|
5567 |
* is kept. Providing `true` for `isSorted` performs a faster search algorithm
|
|
|
5568 |
* for sorted arrays. If an iteratee function is provided it's invoked for
|
|
|
5569 |
* each element in the array to generate the criterion by which uniqueness
|
|
|
5570 |
* is computed. The `iteratee` is bound to `thisArg` and invoked with three
|
|
|
5571 |
* arguments: (value, index, array).
|
|
|
5572 |
*
|
|
|
5573 |
* If a property name is provided for `iteratee` the created `_.property`
|
|
|
5574 |
* style callback returns the property value of the given element.
|
|
|
5575 |
*
|
|
|
5576 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
5577 |
* style callback returns `true` for elements that have a matching property
|
|
|
5578 |
* value, else `false`.
|
|
|
5579 |
*
|
|
|
5580 |
* If an object is provided for `iteratee` the created `_.matches` style
|
|
|
5581 |
* callback returns `true` for elements that have the properties of the given
|
|
|
5582 |
* object, else `false`.
|
|
|
5583 |
*
|
|
|
5584 |
* @static
|
|
|
5585 |
* @memberOf _
|
|
|
5586 |
* @alias unique
|
|
|
5587 |
* @category Array
|
|
|
5588 |
* @param {Array} array The array to inspect.
|
|
|
5589 |
* @param {boolean} [isSorted] Specify the array is sorted.
|
|
|
5590 |
* @param {Function|Object|string} [iteratee] The function invoked per iteration.
|
|
|
5591 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
|
5592 |
* @returns {Array} Returns the new duplicate-value-free array.
|
|
|
5593 |
* @example
|
|
|
5594 |
*
|
|
|
5595 |
* _.uniq([2, 1, 2]);
|
|
|
5596 |
* // => [2, 1]
|
|
|
5597 |
*
|
|
|
5598 |
* // using `isSorted`
|
|
|
5599 |
* _.uniq([1, 1, 2], true);
|
|
|
5600 |
* // => [1, 2]
|
|
|
5601 |
*
|
|
|
5602 |
* // using an iteratee function
|
|
|
5603 |
* _.uniq([1, 2.5, 1.5, 2], function(n) {
|
|
|
5604 |
* return this.floor(n);
|
|
|
5605 |
* }, Math);
|
|
|
5606 |
* // => [1, 2.5]
|
|
|
5607 |
*
|
|
|
5608 |
* // using the `_.property` callback shorthand
|
|
|
5609 |
* _.uniq([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
|
|
|
5610 |
* // => [{ 'x': 1 }, { 'x': 2 }]
|
|
|
5611 |
*/
|
|
|
5612 |
function uniq(array, isSorted, iteratee, thisArg) {
|
|
|
5613 |
var length = array ? array.length : 0;
|
|
|
5614 |
if (!length) {
|
|
|
5615 |
return [];
|
|
|
5616 |
}
|
|
|
5617 |
if (isSorted != null && typeof isSorted != 'boolean') {
|
|
|
5618 |
thisArg = iteratee;
|
|
|
5619 |
iteratee = isIterateeCall(array, isSorted, thisArg) ? undefined : isSorted;
|
|
|
5620 |
isSorted = false;
|
|
|
5621 |
}
|
|
|
5622 |
var callback = getCallback();
|
|
|
5623 |
if (!(iteratee == null && callback === baseCallback)) {
|
|
|
5624 |
iteratee = callback(iteratee, thisArg, 3);
|
|
|
5625 |
}
|
|
|
5626 |
return (isSorted && getIndexOf() === baseIndexOf)
|
|
|
5627 |
? sortedUniq(array, iteratee)
|
|
|
5628 |
: baseUniq(array, iteratee);
|
|
|
5629 |
}
|
|
|
5630 |
|
|
|
5631 |
/**
|
|
|
5632 |
* This method is like `_.zip` except that it accepts an array of grouped
|
|
|
5633 |
* elements and creates an array regrouping the elements to their pre-zip
|
|
|
5634 |
* configuration.
|
|
|
5635 |
*
|
|
|
5636 |
* @static
|
|
|
5637 |
* @memberOf _
|
|
|
5638 |
* @category Array
|
|
|
5639 |
* @param {Array} array The array of grouped elements to process.
|
|
|
5640 |
* @returns {Array} Returns the new array of regrouped elements.
|
|
|
5641 |
* @example
|
|
|
5642 |
*
|
|
|
5643 |
* var zipped = _.zip(['fred', 'barney'], [30, 40], [true, false]);
|
|
|
5644 |
* // => [['fred', 30, true], ['barney', 40, false]]
|
|
|
5645 |
*
|
|
|
5646 |
* _.unzip(zipped);
|
|
|
5647 |
* // => [['fred', 'barney'], [30, 40], [true, false]]
|
|
|
5648 |
*/
|
|
|
5649 |
function unzip(array) {
|
|
|
5650 |
if (!(array && array.length)) {
|
|
|
5651 |
return [];
|
|
|
5652 |
}
|
|
442
|
5653 |
var index = -1,
|
|
498
|
5654 |
length = 0;
|
|
|
5655 |
|
|
|
5656 |
array = arrayFilter(array, function(group) {
|
|
|
5657 |
if (isArrayLike(group)) {
|
|
|
5658 |
length = nativeMax(group.length, length);
|
|
|
5659 |
return true;
|
|
|
5660 |
}
|
|
|
5661 |
});
|
|
|
5662 |
var result = Array(length);
|
|
442
|
5663 |
while (++index < length) {
|
|
498
|
5664 |
result[index] = arrayMap(array, baseProperty(index));
|
|
442
|
5665 |
}
|
|
|
5666 |
return result;
|
|
|
5667 |
}
|
|
|
5668 |
|
|
|
5669 |
/**
|
|
498
|
5670 |
* This method is like `_.unzip` except that it accepts an iteratee to specify
|
|
|
5671 |
* how regrouped values should be combined. The `iteratee` is bound to `thisArg`
|
|
|
5672 |
* and invoked with four arguments: (accumulator, value, index, group).
|
|
|
5673 |
*
|
|
|
5674 |
* @static
|
|
|
5675 |
* @memberOf _
|
|
|
5676 |
* @category Array
|
|
|
5677 |
* @param {Array} array The array of grouped elements to process.
|
|
|
5678 |
* @param {Function} [iteratee] The function to combine regrouped values.
|
|
|
5679 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
|
5680 |
* @returns {Array} Returns the new array of regrouped elements.
|
|
|
5681 |
* @example
|
|
|
5682 |
*
|
|
|
5683 |
* var zipped = _.zip([1, 2], [10, 20], [100, 200]);
|
|
|
5684 |
* // => [[1, 10, 100], [2, 20, 200]]
|
|
|
5685 |
*
|
|
|
5686 |
* _.unzipWith(zipped, _.add);
|
|
|
5687 |
* // => [3, 30, 300]
|
|
|
5688 |
*/
|
|
|
5689 |
function unzipWith(array, iteratee, thisArg) {
|
|
|
5690 |
var length = array ? array.length : 0;
|
|
|
5691 |
if (!length) {
|
|
|
5692 |
return [];
|
|
|
5693 |
}
|
|
|
5694 |
var result = unzip(array);
|
|
|
5695 |
if (iteratee == null) {
|
|
|
5696 |
return result;
|
|
|
5697 |
}
|
|
|
5698 |
iteratee = bindCallback(iteratee, thisArg, 4);
|
|
|
5699 |
return arrayMap(result, function(group) {
|
|
|
5700 |
return arrayReduce(group, iteratee, undefined, true);
|
|
|
5701 |
});
|
|
|
5702 |
}
|
|
|
5703 |
|
|
|
5704 |
/**
|
|
|
5705 |
* Creates an array excluding all provided values using
|
|
|
5706 |
* [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
|
|
|
5707 |
* for equality comparisons.
|
|
|
5708 |
*
|
|
|
5709 |
* @static
|
|
|
5710 |
* @memberOf _
|
|
|
5711 |
* @category Array
|
|
|
5712 |
* @param {Array} array The array to filter.
|
|
|
5713 |
* @param {...*} [values] The values to exclude.
|
|
|
5714 |
* @returns {Array} Returns the new array of filtered values.
|
|
|
5715 |
* @example
|
|
|
5716 |
*
|
|
|
5717 |
* _.without([1, 2, 1, 3], 1, 2);
|
|
|
5718 |
* // => [3]
|
|
|
5719 |
*/
|
|
|
5720 |
var without = restParam(function(array, values) {
|
|
|
5721 |
return isArrayLike(array)
|
|
|
5722 |
? baseDifference(array, values)
|
|
|
5723 |
: [];
|
|
|
5724 |
});
|
|
|
5725 |
|
|
|
5726 |
/**
|
|
|
5727 |
* Creates an array of unique values that is the [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)
|
|
|
5728 |
* of the provided arrays.
|
|
|
5729 |
*
|
|
|
5730 |
* @static
|
|
|
5731 |
* @memberOf _
|
|
|
5732 |
* @category Array
|
|
|
5733 |
* @param {...Array} [arrays] The arrays to inspect.
|
|
|
5734 |
* @returns {Array} Returns the new array of values.
|
|
|
5735 |
* @example
|
|
|
5736 |
*
|
|
|
5737 |
* _.xor([1, 2], [4, 2]);
|
|
|
5738 |
* // => [1, 4]
|
|
|
5739 |
*/
|
|
|
5740 |
function xor() {
|
|
442
|
5741 |
var index = -1,
|
|
498
|
5742 |
length = arguments.length;
|
|
442
|
5743 |
|
|
|
5744 |
while (++index < length) {
|
|
498
|
5745 |
var array = arguments[index];
|
|
|
5746 |
if (isArrayLike(array)) {
|
|
|
5747 |
var result = result
|
|
|
5748 |
? arrayPush(baseDifference(result, array), baseDifference(array, result))
|
|
|
5749 |
: array;
|
|
|
5750 |
}
|
|
|
5751 |
}
|
|
|
5752 |
return result ? baseUniq(result) : [];
|
|
|
5753 |
}
|
|
|
5754 |
|
|
|
5755 |
/**
|
|
|
5756 |
* Creates an array of grouped elements, the first of which contains the first
|
|
|
5757 |
* elements of the given arrays, the second of which contains the second elements
|
|
|
5758 |
* of the given arrays, and so on.
|
|
|
5759 |
*
|
|
|
5760 |
* @static
|
|
|
5761 |
* @memberOf _
|
|
|
5762 |
* @category Array
|
|
|
5763 |
* @param {...Array} [arrays] The arrays to process.
|
|
|
5764 |
* @returns {Array} Returns the new array of grouped elements.
|
|
|
5765 |
* @example
|
|
|
5766 |
*
|
|
|
5767 |
* _.zip(['fred', 'barney'], [30, 40], [true, false]);
|
|
|
5768 |
* // => [['fred', 30, true], ['barney', 40, false]]
|
|
|
5769 |
*/
|
|
|
5770 |
var zip = restParam(unzip);
|
|
|
5771 |
|
|
|
5772 |
/**
|
|
|
5773 |
* The inverse of `_.pairs`; this method returns an object composed from arrays
|
|
|
5774 |
* of property names and values. Provide either a single two dimensional array,
|
|
|
5775 |
* e.g. `[[key1, value1], [key2, value2]]` or two arrays, one of property names
|
|
|
5776 |
* and one of corresponding values.
|
|
|
5777 |
*
|
|
|
5778 |
* @static
|
|
|
5779 |
* @memberOf _
|
|
|
5780 |
* @alias object
|
|
|
5781 |
* @category Array
|
|
|
5782 |
* @param {Array} props The property names.
|
|
|
5783 |
* @param {Array} [values=[]] The property values.
|
|
|
5784 |
* @returns {Object} Returns the new object.
|
|
|
5785 |
* @example
|
|
|
5786 |
*
|
|
|
5787 |
* _.zipObject([['fred', 30], ['barney', 40]]);
|
|
|
5788 |
* // => { 'fred': 30, 'barney': 40 }
|
|
|
5789 |
*
|
|
|
5790 |
* _.zipObject(['fred', 'barney'], [30, 40]);
|
|
|
5791 |
* // => { 'fred': 30, 'barney': 40 }
|
|
|
5792 |
*/
|
|
|
5793 |
function zipObject(props, values) {
|
|
|
5794 |
var index = -1,
|
|
|
5795 |
length = props ? props.length : 0,
|
|
|
5796 |
result = {};
|
|
|
5797 |
|
|
|
5798 |
if (length && !values && !isArray(props[0])) {
|
|
|
5799 |
values = [];
|
|
|
5800 |
}
|
|
|
5801 |
while (++index < length) {
|
|
|
5802 |
var key = props[index];
|
|
|
5803 |
if (values) {
|
|
|
5804 |
result[key] = values[index];
|
|
|
5805 |
} else if (key) {
|
|
|
5806 |
result[key[0]] = key[1];
|
|
|
5807 |
}
|
|
442
|
5808 |
}
|
|
|
5809 |
return result;
|
|
|
5810 |
}
|
|
|
5811 |
|
|
498
|
5812 |
/**
|
|
|
5813 |
* This method is like `_.zip` except that it accepts an iteratee to specify
|
|
|
5814 |
* how grouped values should be combined. The `iteratee` is bound to `thisArg`
|
|
|
5815 |
* and invoked with four arguments: (accumulator, value, index, group).
|
|
|
5816 |
*
|
|
|
5817 |
* @static
|
|
|
5818 |
* @memberOf _
|
|
|
5819 |
* @category Array
|
|
|
5820 |
* @param {...Array} [arrays] The arrays to process.
|
|
|
5821 |
* @param {Function} [iteratee] The function to combine grouped values.
|
|
|
5822 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
|
5823 |
* @returns {Array} Returns the new array of grouped elements.
|
|
|
5824 |
* @example
|
|
|
5825 |
*
|
|
|
5826 |
* _.zipWith([1, 2], [10, 20], [100, 200], _.add);
|
|
|
5827 |
* // => [111, 222]
|
|
|
5828 |
*/
|
|
|
5829 |
var zipWith = restParam(function(arrays) {
|
|
|
5830 |
var length = arrays.length,
|
|
|
5831 |
iteratee = length > 2 ? arrays[length - 2] : undefined,
|
|
|
5832 |
thisArg = length > 1 ? arrays[length - 1] : undefined;
|
|
|
5833 |
|
|
|
5834 |
if (length > 2 && typeof iteratee == 'function') {
|
|
|
5835 |
length -= 2;
|
|
|
5836 |
} else {
|
|
|
5837 |
iteratee = (length > 1 && typeof thisArg == 'function') ? (--length, thisArg) : undefined;
|
|
|
5838 |
thisArg = undefined;
|
|
|
5839 |
}
|
|
|
5840 |
arrays.length = length;
|
|
|
5841 |
return unzipWith(arrays, iteratee, thisArg);
|
|
|
5842 |
});
|
|
|
5843 |
|
|
|
5844 |
/*------------------------------------------------------------------------*/
|
|
|
5845 |
|
|
|
5846 |
/**
|
|
|
5847 |
* Creates a `lodash` object that wraps `value` with explicit method
|
|
|
5848 |
* chaining enabled.
|
|
|
5849 |
*
|
|
|
5850 |
* @static
|
|
|
5851 |
* @memberOf _
|
|
|
5852 |
* @category Chain
|
|
|
5853 |
* @param {*} value The value to wrap.
|
|
|
5854 |
* @returns {Object} Returns the new `lodash` wrapper instance.
|
|
|
5855 |
* @example
|
|
|
5856 |
*
|
|
|
5857 |
* var users = [
|
|
|
5858 |
* { 'user': 'barney', 'age': 36 },
|
|
|
5859 |
* { 'user': 'fred', 'age': 40 },
|
|
|
5860 |
* { 'user': 'pebbles', 'age': 1 }
|
|
|
5861 |
* ];
|
|
|
5862 |
*
|
|
|
5863 |
* var youngest = _.chain(users)
|
|
|
5864 |
* .sortBy('age')
|
|
|
5865 |
* .map(function(chr) {
|
|
|
5866 |
* return chr.user + ' is ' + chr.age;
|
|
|
5867 |
* })
|
|
|
5868 |
* .first()
|
|
|
5869 |
* .value();
|
|
|
5870 |
* // => 'pebbles is 1'
|
|
|
5871 |
*/
|
|
|
5872 |
function chain(value) {
|
|
|
5873 |
var result = lodash(value);
|
|
|
5874 |
result.__chain__ = true;
|
|
442
|
5875 |
return result;
|
|
|
5876 |
}
|
|
|
5877 |
|
|
|
5878 |
/**
|
|
498
|
5879 |
* This method invokes `interceptor` and returns `value`. The interceptor is
|
|
|
5880 |
* bound to `thisArg` and invoked with one argument; (value). The purpose of
|
|
|
5881 |
* this method is to "tap into" a method chain in order to perform operations
|
|
|
5882 |
* on intermediate results within the chain.
|
|
|
5883 |
*
|
|
|
5884 |
* @static
|
|
|
5885 |
* @memberOf _
|
|
|
5886 |
* @category Chain
|
|
|
5887 |
* @param {*} value The value to provide to `interceptor`.
|
|
|
5888 |
* @param {Function} interceptor The function to invoke.
|
|
|
5889 |
* @param {*} [thisArg] The `this` binding of `interceptor`.
|
|
|
5890 |
* @returns {*} Returns `value`.
|
|
|
5891 |
* @example
|
|
|
5892 |
*
|
|
|
5893 |
* _([1, 2, 3])
|
|
|
5894 |
* .tap(function(array) {
|
|
|
5895 |
* array.pop();
|
|
|
5896 |
* })
|
|
|
5897 |
* .reverse()
|
|
|
5898 |
* .value();
|
|
|
5899 |
* // => [2, 1]
|
|
|
5900 |
*/
|
|
|
5901 |
function tap(value, interceptor, thisArg) {
|
|
|
5902 |
interceptor.call(thisArg, value);
|
|
|
5903 |
return value;
|
|
|
5904 |
}
|
|
|
5905 |
|
|
|
5906 |
/**
|
|
|
5907 |
* This method is like `_.tap` except that it returns the result of `interceptor`.
|
|
|
5908 |
*
|
|
|
5909 |
* @static
|
|
|
5910 |
* @memberOf _
|
|
|
5911 |
* @category Chain
|
|
|
5912 |
* @param {*} value The value to provide to `interceptor`.
|
|
|
5913 |
* @param {Function} interceptor The function to invoke.
|
|
|
5914 |
* @param {*} [thisArg] The `this` binding of `interceptor`.
|
|
|
5915 |
* @returns {*} Returns the result of `interceptor`.
|
|
|
5916 |
* @example
|
|
|
5917 |
*
|
|
|
5918 |
* _(' abc ')
|
|
|
5919 |
* .chain()
|
|
|
5920 |
* .trim()
|
|
|
5921 |
* .thru(function(value) {
|
|
|
5922 |
* return [value];
|
|
|
5923 |
* })
|
|
|
5924 |
* .value();
|
|
|
5925 |
* // => ['abc']
|
|
|
5926 |
*/
|
|
|
5927 |
function thru(value, interceptor, thisArg) {
|
|
|
5928 |
return interceptor.call(thisArg, value);
|
|
|
5929 |
}
|
|
|
5930 |
|
|
|
5931 |
/**
|
|
|
5932 |
* Enables explicit method chaining on the wrapper object.
|
|
|
5933 |
*
|
|
|
5934 |
* @name chain
|
|
|
5935 |
* @memberOf _
|
|
|
5936 |
* @category Chain
|
|
|
5937 |
* @returns {Object} Returns the new `lodash` wrapper instance.
|
|
|
5938 |
* @example
|
|
|
5939 |
*
|
|
|
5940 |
* var users = [
|
|
|
5941 |
* { 'user': 'barney', 'age': 36 },
|
|
|
5942 |
* { 'user': 'fred', 'age': 40 }
|
|
|
5943 |
* ];
|
|
|
5944 |
*
|
|
|
5945 |
* // without explicit chaining
|
|
|
5946 |
* _(users).first();
|
|
|
5947 |
* // => { 'user': 'barney', 'age': 36 }
|
|
|
5948 |
*
|
|
|
5949 |
* // with explicit chaining
|
|
|
5950 |
* _(users).chain()
|
|
|
5951 |
* .first()
|
|
|
5952 |
* .pick('user')
|
|
|
5953 |
* .value();
|
|
|
5954 |
* // => { 'user': 'barney' }
|
|
|
5955 |
*/
|
|
|
5956 |
function wrapperChain() {
|
|
|
5957 |
return chain(this);
|
|
|
5958 |
}
|
|
|
5959 |
|
|
|
5960 |
/**
|
|
|
5961 |
* Executes the chained sequence and returns the wrapped result.
|
|
|
5962 |
*
|
|
|
5963 |
* @name commit
|
|
|
5964 |
* @memberOf _
|
|
|
5965 |
* @category Chain
|
|
|
5966 |
* @returns {Object} Returns the new `lodash` wrapper instance.
|
|
|
5967 |
* @example
|
|
|
5968 |
*
|
|
|
5969 |
* var array = [1, 2];
|
|
|
5970 |
* var wrapped = _(array).push(3);
|
|
|
5971 |
*
|
|
|
5972 |
* console.log(array);
|
|
|
5973 |
* // => [1, 2]
|
|
|
5974 |
*
|
|
|
5975 |
* wrapped = wrapped.commit();
|
|
|
5976 |
* console.log(array);
|
|
|
5977 |
* // => [1, 2, 3]
|
|
|
5978 |
*
|
|
|
5979 |
* wrapped.last();
|
|
|
5980 |
* // => 3
|
|
|
5981 |
*
|
|
|
5982 |
* console.log(array);
|
|
|
5983 |
* // => [1, 2, 3]
|
|
|
5984 |
*/
|
|
|
5985 |
function wrapperCommit() {
|
|
|
5986 |
return new LodashWrapper(this.value(), this.__chain__);
|
|
|
5987 |
}
|
|
|
5988 |
|
|
|
5989 |
/**
|
|
|
5990 |
* Creates a new array joining a wrapped array with any additional arrays
|
|
|
5991 |
* and/or values.
|
|
|
5992 |
*
|
|
|
5993 |
* @name concat
|
|
|
5994 |
* @memberOf _
|
|
|
5995 |
* @category Chain
|
|
|
5996 |
* @param {...*} [values] The values to concatenate.
|
|
|
5997 |
* @returns {Array} Returns the new concatenated array.
|
|
|
5998 |
* @example
|
|
|
5999 |
*
|
|
|
6000 |
* var array = [1];
|
|
|
6001 |
* var wrapped = _(array).concat(2, [3], [[4]]);
|
|
|
6002 |
*
|
|
|
6003 |
* console.log(wrapped.value());
|
|
|
6004 |
* // => [1, 2, 3, [4]]
|
|
|
6005 |
*
|
|
|
6006 |
* console.log(array);
|
|
|
6007 |
* // => [1]
|
|
|
6008 |
*/
|
|
|
6009 |
var wrapperConcat = restParam(function(values) {
|
|
|
6010 |
values = baseFlatten(values);
|
|
|
6011 |
return this.thru(function(array) {
|
|
|
6012 |
return arrayConcat(isArray(array) ? array : [toObject(array)], values);
|
|
|
6013 |
});
|
|
|
6014 |
});
|
|
|
6015 |
|
|
|
6016 |
/**
|
|
|
6017 |
* Creates a clone of the chained sequence planting `value` as the wrapped value.
|
|
|
6018 |
*
|
|
|
6019 |
* @name plant
|
|
|
6020 |
* @memberOf _
|
|
|
6021 |
* @category Chain
|
|
|
6022 |
* @returns {Object} Returns the new `lodash` wrapper instance.
|
|
|
6023 |
* @example
|
|
|
6024 |
*
|
|
|
6025 |
* var array = [1, 2];
|
|
|
6026 |
* var wrapped = _(array).map(function(value) {
|
|
|
6027 |
* return Math.pow(value, 2);
|
|
|
6028 |
* });
|
|
|
6029 |
*
|
|
|
6030 |
* var other = [3, 4];
|
|
|
6031 |
* var otherWrapped = wrapped.plant(other);
|
|
|
6032 |
*
|
|
|
6033 |
* otherWrapped.value();
|
|
|
6034 |
* // => [9, 16]
|
|
|
6035 |
*
|
|
|
6036 |
* wrapped.value();
|
|
|
6037 |
* // => [1, 4]
|
|
|
6038 |
*/
|
|
|
6039 |
function wrapperPlant(value) {
|
|
|
6040 |
var result,
|
|
|
6041 |
parent = this;
|
|
|
6042 |
|
|
|
6043 |
while (parent instanceof baseLodash) {
|
|
|
6044 |
var clone = wrapperClone(parent);
|
|
|
6045 |
if (result) {
|
|
|
6046 |
previous.__wrapped__ = clone;
|
|
|
6047 |
} else {
|
|
|
6048 |
result = clone;
|
|
|
6049 |
}
|
|
|
6050 |
var previous = clone;
|
|
|
6051 |
parent = parent.__wrapped__;
|
|
|
6052 |
}
|
|
|
6053 |
previous.__wrapped__ = value;
|
|
|
6054 |
return result;
|
|
|
6055 |
}
|
|
|
6056 |
|
|
|
6057 |
/**
|
|
|
6058 |
* Reverses the wrapped array so the first element becomes the last, the
|
|
|
6059 |
* second element becomes the second to last, and so on.
|
|
|
6060 |
*
|
|
|
6061 |
* **Note:** This method mutates the wrapped array.
|
|
|
6062 |
*
|
|
|
6063 |
* @name reverse
|
|
|
6064 |
* @memberOf _
|
|
|
6065 |
* @category Chain
|
|
|
6066 |
* @returns {Object} Returns the new reversed `lodash` wrapper instance.
|
|
|
6067 |
* @example
|
|
|
6068 |
*
|
|
|
6069 |
* var array = [1, 2, 3];
|
|
|
6070 |
*
|
|
|
6071 |
* _(array).reverse().value()
|
|
|
6072 |
* // => [3, 2, 1]
|
|
|
6073 |
*
|
|
|
6074 |
* console.log(array);
|
|
|
6075 |
* // => [3, 2, 1]
|
|
|
6076 |
*/
|
|
|
6077 |
function wrapperReverse() {
|
|
|
6078 |
var value = this.__wrapped__;
|
|
|
6079 |
|
|
|
6080 |
var interceptor = function(value) {
|
|
|
6081 |
return value.reverse();
|
|
|
6082 |
};
|
|
|
6083 |
if (value instanceof LazyWrapper) {
|
|
|
6084 |
var wrapped = value;
|
|
|
6085 |
if (this.__actions__.length) {
|
|
|
6086 |
wrapped = new LazyWrapper(this);
|
|
|
6087 |
}
|
|
|
6088 |
wrapped = wrapped.reverse();
|
|
|
6089 |
wrapped.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined });
|
|
|
6090 |
return new LodashWrapper(wrapped, this.__chain__);
|
|
|
6091 |
}
|
|
|
6092 |
return this.thru(interceptor);
|
|
|
6093 |
}
|
|
|
6094 |
|
|
|
6095 |
/**
|
|
|
6096 |
* Produces the result of coercing the unwrapped value to a string.
|
|
|
6097 |
*
|
|
|
6098 |
* @name toString
|
|
|
6099 |
* @memberOf _
|
|
|
6100 |
* @category Chain
|
|
|
6101 |
* @returns {string} Returns the coerced string value.
|
|
|
6102 |
* @example
|
|
|
6103 |
*
|
|
|
6104 |
* _([1, 2, 3]).toString();
|
|
|
6105 |
* // => '1,2,3'
|
|
|
6106 |
*/
|
|
|
6107 |
function wrapperToString() {
|
|
|
6108 |
return (this.value() + '');
|
|
|
6109 |
}
|
|
|
6110 |
|
|
|
6111 |
/**
|
|
|
6112 |
* Executes the chained sequence to extract the unwrapped value.
|
|
|
6113 |
*
|
|
|
6114 |
* @name value
|
|
|
6115 |
* @memberOf _
|
|
|
6116 |
* @alias run, toJSON, valueOf
|
|
|
6117 |
* @category Chain
|
|
|
6118 |
* @returns {*} Returns the resolved unwrapped value.
|
|
|
6119 |
* @example
|
|
|
6120 |
*
|
|
|
6121 |
* _([1, 2, 3]).value();
|
|
|
6122 |
* // => [1, 2, 3]
|
|
|
6123 |
*/
|
|
|
6124 |
function wrapperValue() {
|
|
|
6125 |
return baseWrapperValue(this.__wrapped__, this.__actions__);
|
|
|
6126 |
}
|
|
|
6127 |
|
|
|
6128 |
/*------------------------------------------------------------------------*/
|
|
|
6129 |
|
|
|
6130 |
/**
|
|
|
6131 |
* Creates an array of elements corresponding to the given keys, or indexes,
|
|
|
6132 |
* of `collection`. Keys may be specified as individual arguments or as arrays
|
|
|
6133 |
* of keys.
|
|
|
6134 |
*
|
|
|
6135 |
* @static
|
|
|
6136 |
* @memberOf _
|
|
|
6137 |
* @category Collection
|
|
442
|
6138 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
498
|
6139 |
* @param {...(number|number[]|string|string[])} [props] The property names
|
|
|
6140 |
* or indexes of elements to pick, specified individually or in arrays.
|
|
|
6141 |
* @returns {Array} Returns the new array of picked elements.
|
|
|
6142 |
* @example
|
|
|
6143 |
*
|
|
|
6144 |
* _.at(['a', 'b', 'c'], [0, 2]);
|
|
|
6145 |
* // => ['a', 'c']
|
|
|
6146 |
*
|
|
|
6147 |
* _.at(['barney', 'fred', 'pebbles'], 0, 2);
|
|
|
6148 |
* // => ['barney', 'pebbles']
|
|
|
6149 |
*/
|
|
|
6150 |
var at = restParam(function(collection, props) {
|
|
|
6151 |
return baseAt(collection, baseFlatten(props));
|
|
|
6152 |
});
|
|
442
|
6153 |
|
|
|
6154 |
/**
|
|
|
6155 |
* Creates an object composed of keys generated from the results of running
|
|
498
|
6156 |
* each element of `collection` through `iteratee`. The corresponding value
|
|
|
6157 |
* of each key is the number of times the key was returned by `iteratee`.
|
|
|
6158 |
* The `iteratee` is bound to `thisArg` and invoked with three arguments:
|
|
442
|
6159 |
* (value, index|key, collection).
|
|
|
6160 |
*
|
|
498
|
6161 |
* If a property name is provided for `iteratee` the created `_.property`
|
|
|
6162 |
* style callback returns the property value of the given element.
|
|
|
6163 |
*
|
|
|
6164 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
6165 |
* style callback returns `true` for elements that have a matching property
|
|
|
6166 |
* value, else `false`.
|
|
|
6167 |
*
|
|
|
6168 |
* If an object is provided for `iteratee` the created `_.matches` style
|
|
|
6169 |
* callback returns `true` for elements that have the properties of the given
|
|
|
6170 |
* object, else `false`.
|
|
|
6171 |
*
|
|
|
6172 |
* @static
|
|
|
6173 |
* @memberOf _
|
|
|
6174 |
* @category Collection
|
|
442
|
6175 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
498
|
6176 |
* @param {Function|Object|string} [iteratee=_.identity] The function invoked
|
|
|
6177 |
* per iteration.
|
|
|
6178 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
442
|
6179 |
* @returns {Object} Returns the composed aggregate object.
|
|
|
6180 |
* @example
|
|
|
6181 |
*
|
|
498
|
6182 |
* _.countBy([4.3, 6.1, 6.4], function(n) {
|
|
|
6183 |
* return Math.floor(n);
|
|
|
6184 |
* });
|
|
442
|
6185 |
* // => { '4': 1, '6': 2 }
|
|
|
6186 |
*
|
|
498
|
6187 |
* _.countBy([4.3, 6.1, 6.4], function(n) {
|
|
|
6188 |
* return this.floor(n);
|
|
|
6189 |
* }, Math);
|
|
442
|
6190 |
* // => { '4': 1, '6': 2 }
|
|
|
6191 |
*
|
|
|
6192 |
* _.countBy(['one', 'two', 'three'], 'length');
|
|
|
6193 |
* // => { '3': 2, '5': 1 }
|
|
|
6194 |
*/
|
|
|
6195 |
var countBy = createAggregator(function(result, value, key) {
|
|
498
|
6196 |
hasOwnProperty.call(result, key) ? ++result[key] : (result[key] = 1);
|
|
442
|
6197 |
});
|
|
|
6198 |
|
|
|
6199 |
/**
|
|
498
|
6200 |
* Checks if `predicate` returns truthy for **all** elements of `collection`.
|
|
|
6201 |
* The predicate is bound to `thisArg` and invoked with three arguments:
|
|
|
6202 |
* (value, index|key, collection).
|
|
|
6203 |
*
|
|
|
6204 |
* If a property name is provided for `predicate` the created `_.property`
|
|
|
6205 |
* style callback returns the property value of the given element.
|
|
|
6206 |
*
|
|
|
6207 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
6208 |
* style callback returns `true` for elements that have a matching property
|
|
|
6209 |
* value, else `false`.
|
|
|
6210 |
*
|
|
|
6211 |
* If an object is provided for `predicate` the created `_.matches` style
|
|
|
6212 |
* callback returns `true` for elements that have the properties of the given
|
|
|
6213 |
* object, else `false`.
|
|
442
|
6214 |
*
|
|
|
6215 |
* @static
|
|
|
6216 |
* @memberOf _
|
|
|
6217 |
* @alias all
|
|
498
|
6218 |
* @category Collection
|
|
442
|
6219 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
498
|
6220 |
* @param {Function|Object|string} [predicate=_.identity] The function invoked
|
|
|
6221 |
* per iteration.
|
|
|
6222 |
* @param {*} [thisArg] The `this` binding of `predicate`.
|
|
|
6223 |
* @returns {boolean} Returns `true` if all elements pass the predicate check,
|
|
442
|
6224 |
* else `false`.
|
|
|
6225 |
* @example
|
|
|
6226 |
*
|
|
498
|
6227 |
* _.every([true, 1, null, 'yes'], Boolean);
|
|
442
|
6228 |
* // => false
|
|
|
6229 |
*
|
|
498
|
6230 |
* var users = [
|
|
|
6231 |
* { 'user': 'barney', 'active': false },
|
|
|
6232 |
* { 'user': 'fred', 'active': false }
|
|
442
|
6233 |
* ];
|
|
|
6234 |
*
|
|
498
|
6235 |
* // using the `_.matches` callback shorthand
|
|
|
6236 |
* _.every(users, { 'user': 'barney', 'active': false });
|
|
|
6237 |
* // => false
|
|
|
6238 |
*
|
|
|
6239 |
* // using the `_.matchesProperty` callback shorthand
|
|
|
6240 |
* _.every(users, 'active', false);
|
|
442
|
6241 |
* // => true
|
|
|
6242 |
*
|
|
498
|
6243 |
* // using the `_.property` callback shorthand
|
|
|
6244 |
* _.every(users, 'active');
|
|
442
|
6245 |
* // => false
|
|
|
6246 |
*/
|
|
498
|
6247 |
function every(collection, predicate, thisArg) {
|
|
|
6248 |
var func = isArray(collection) ? arrayEvery : baseEvery;
|
|
|
6249 |
if (thisArg && isIterateeCall(collection, predicate, thisArg)) {
|
|
|
6250 |
predicate = undefined;
|
|
|
6251 |
}
|
|
|
6252 |
if (typeof predicate != 'function' || thisArg !== undefined) {
|
|
|
6253 |
predicate = getCallback(predicate, thisArg, 3);
|
|
|
6254 |
}
|
|
|
6255 |
return func(collection, predicate);
|
|
|
6256 |
}
|
|
|
6257 |
|
|
|
6258 |
/**
|
|
|
6259 |
* Iterates over elements of `collection`, returning an array of all elements
|
|
|
6260 |
* `predicate` returns truthy for. The predicate is bound to `thisArg` and
|
|
|
6261 |
* invoked with three arguments: (value, index|key, collection).
|
|
|
6262 |
*
|
|
|
6263 |
* If a property name is provided for `predicate` the created `_.property`
|
|
|
6264 |
* style callback returns the property value of the given element.
|
|
|
6265 |
*
|
|
|
6266 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
6267 |
* style callback returns `true` for elements that have a matching property
|
|
|
6268 |
* value, else `false`.
|
|
|
6269 |
*
|
|
|
6270 |
* If an object is provided for `predicate` the created `_.matches` style
|
|
|
6271 |
* callback returns `true` for elements that have the properties of the given
|
|
|
6272 |
* object, else `false`.
|
|
442
|
6273 |
*
|
|
|
6274 |
* @static
|
|
|
6275 |
* @memberOf _
|
|
|
6276 |
* @alias select
|
|
498
|
6277 |
* @category Collection
|
|
442
|
6278 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
498
|
6279 |
* @param {Function|Object|string} [predicate=_.identity] The function invoked
|
|
|
6280 |
* per iteration.
|
|
|
6281 |
* @param {*} [thisArg] The `this` binding of `predicate`.
|
|
|
6282 |
* @returns {Array} Returns the new filtered array.
|
|
|
6283 |
* @example
|
|
|
6284 |
*
|
|
|
6285 |
* _.filter([4, 5, 6], function(n) {
|
|
|
6286 |
* return n % 2 == 0;
|
|
442
|
6287 |
* });
|
|
498
|
6288 |
* // => [4, 6]
|
|
|
6289 |
*
|
|
|
6290 |
* var users = [
|
|
|
6291 |
* { 'user': 'barney', 'age': 36, 'active': true },
|
|
|
6292 |
* { 'user': 'fred', 'age': 40, 'active': false }
|
|
|
6293 |
* ];
|
|
|
6294 |
*
|
|
|
6295 |
* // using the `_.matches` callback shorthand
|
|
|
6296 |
* _.pluck(_.filter(users, { 'age': 36, 'active': true }), 'user');
|
|
|
6297 |
* // => ['barney']
|
|
|
6298 |
*
|
|
|
6299 |
* // using the `_.matchesProperty` callback shorthand
|
|
|
6300 |
* _.pluck(_.filter(users, 'active', false), 'user');
|
|
|
6301 |
* // => ['fred']
|
|
|
6302 |
*
|
|
|
6303 |
* // using the `_.property` callback shorthand
|
|
|
6304 |
* _.pluck(_.filter(users, 'active'), 'user');
|
|
|
6305 |
* // => ['barney']
|
|
|
6306 |
*/
|
|
|
6307 |
function filter(collection, predicate, thisArg) {
|
|
|
6308 |
var func = isArray(collection) ? arrayFilter : baseFilter;
|
|
|
6309 |
predicate = getCallback(predicate, thisArg, 3);
|
|
|
6310 |
return func(collection, predicate);
|
|
|
6311 |
}
|
|
|
6312 |
|
|
|
6313 |
/**
|
|
|
6314 |
* Iterates over elements of `collection`, returning the first element
|
|
|
6315 |
* `predicate` returns truthy for. The predicate is bound to `thisArg` and
|
|
|
6316 |
* invoked with three arguments: (value, index|key, collection).
|
|
|
6317 |
*
|
|
|
6318 |
* If a property name is provided for `predicate` the created `_.property`
|
|
|
6319 |
* style callback returns the property value of the given element.
|
|
|
6320 |
*
|
|
|
6321 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
6322 |
* style callback returns `true` for elements that have a matching property
|
|
|
6323 |
* value, else `false`.
|
|
|
6324 |
*
|
|
|
6325 |
* If an object is provided for `predicate` the created `_.matches` style
|
|
|
6326 |
* callback returns `true` for elements that have the properties of the given
|
|
|
6327 |
* object, else `false`.
|
|
|
6328 |
*
|
|
|
6329 |
* @static
|
|
|
6330 |
* @memberOf _
|
|
|
6331 |
* @alias detect
|
|
|
6332 |
* @category Collection
|
|
|
6333 |
* @param {Array|Object|string} collection The collection to search.
|
|
|
6334 |
* @param {Function|Object|string} [predicate=_.identity] The function invoked
|
|
|
6335 |
* per iteration.
|
|
|
6336 |
* @param {*} [thisArg] The `this` binding of `predicate`.
|
|
|
6337 |
* @returns {*} Returns the matched element, else `undefined`.
|
|
|
6338 |
* @example
|
|
|
6339 |
*
|
|
|
6340 |
* var users = [
|
|
|
6341 |
* { 'user': 'barney', 'age': 36, 'active': true },
|
|
|
6342 |
* { 'user': 'fred', 'age': 40, 'active': false },
|
|
|
6343 |
* { 'user': 'pebbles', 'age': 1, 'active': true }
|
|
|
6344 |
* ];
|
|
|
6345 |
*
|
|
|
6346 |
* _.result(_.find(users, function(chr) {
|
|
|
6347 |
* return chr.age < 40;
|
|
|
6348 |
* }), 'user');
|
|
|
6349 |
* // => 'barney'
|
|
|
6350 |
*
|
|
|
6351 |
* // using the `_.matches` callback shorthand
|
|
|
6352 |
* _.result(_.find(users, { 'age': 1, 'active': true }), 'user');
|
|
|
6353 |
* // => 'pebbles'
|
|
|
6354 |
*
|
|
|
6355 |
* // using the `_.matchesProperty` callback shorthand
|
|
|
6356 |
* _.result(_.find(users, 'active', false), 'user');
|
|
|
6357 |
* // => 'fred'
|
|
|
6358 |
*
|
|
|
6359 |
* // using the `_.property` callback shorthand
|
|
|
6360 |
* _.result(_.find(users, 'active'), 'user');
|
|
|
6361 |
* // => 'barney'
|
|
|
6362 |
*/
|
|
|
6363 |
var find = createFind(baseEach);
|
|
|
6364 |
|
|
|
6365 |
/**
|
|
|
6366 |
* This method is like `_.find` except that it iterates over elements of
|
|
|
6367 |
* `collection` from right to left.
|
|
|
6368 |
*
|
|
|
6369 |
* @static
|
|
|
6370 |
* @memberOf _
|
|
|
6371 |
* @category Collection
|
|
|
6372 |
* @param {Array|Object|string} collection The collection to search.
|
|
|
6373 |
* @param {Function|Object|string} [predicate=_.identity] The function invoked
|
|
|
6374 |
* per iteration.
|
|
|
6375 |
* @param {*} [thisArg] The `this` binding of `predicate`.
|
|
|
6376 |
* @returns {*} Returns the matched element, else `undefined`.
|
|
|
6377 |
* @example
|
|
|
6378 |
*
|
|
|
6379 |
* _.findLast([1, 2, 3, 4], function(n) {
|
|
|
6380 |
* return n % 2 == 1;
|
|
442
|
6381 |
* });
|
|
|
6382 |
* // => 3
|
|
|
6383 |
*/
|
|
498
|
6384 |
var findLast = createFind(baseEachRight, true);
|
|
|
6385 |
|
|
|
6386 |
/**
|
|
|
6387 |
* Performs a deep comparison between each element in `collection` and the
|
|
|
6388 |
* source object, returning the first element that has equivalent property
|
|
|
6389 |
* values.
|
|
|
6390 |
*
|
|
|
6391 |
* **Note:** This method supports comparing arrays, booleans, `Date` objects,
|
|
|
6392 |
* numbers, `Object` objects, regexes, and strings. Objects are compared by
|
|
|
6393 |
* their own, not inherited, enumerable properties. For comparing a single
|
|
|
6394 |
* own or inherited property value see `_.matchesProperty`.
|
|
|
6395 |
*
|
|
|
6396 |
* @static
|
|
|
6397 |
* @memberOf _
|
|
|
6398 |
* @category Collection
|
|
|
6399 |
* @param {Array|Object|string} collection The collection to search.
|
|
|
6400 |
* @param {Object} source The object of property values to match.
|
|
|
6401 |
* @returns {*} Returns the matched element, else `undefined`.
|
|
|
6402 |
* @example
|
|
|
6403 |
*
|
|
|
6404 |
* var users = [
|
|
|
6405 |
* { 'user': 'barney', 'age': 36, 'active': true },
|
|
|
6406 |
* { 'user': 'fred', 'age': 40, 'active': false }
|
|
|
6407 |
* ];
|
|
|
6408 |
*
|
|
|
6409 |
* _.result(_.findWhere(users, { 'age': 36, 'active': true }), 'user');
|
|
|
6410 |
* // => 'barney'
|
|
|
6411 |
*
|
|
|
6412 |
* _.result(_.findWhere(users, { 'age': 40, 'active': false }), 'user');
|
|
|
6413 |
* // => 'fred'
|
|
|
6414 |
*/
|
|
|
6415 |
function findWhere(collection, source) {
|
|
|
6416 |
return find(collection, baseMatches(source));
|
|
|
6417 |
}
|
|
|
6418 |
|
|
|
6419 |
/**
|
|
|
6420 |
* Iterates over elements of `collection` invoking `iteratee` for each element.
|
|
|
6421 |
* The `iteratee` is bound to `thisArg` and invoked with three arguments:
|
|
|
6422 |
* (value, index|key, collection). Iteratee functions may exit iteration early
|
|
|
6423 |
* by explicitly returning `false`.
|
|
|
6424 |
*
|
|
|
6425 |
* **Note:** As with other "Collections" methods, objects with a "length" property
|
|
442
|
6426 |
* are iterated like arrays. To avoid this behavior `_.forIn` or `_.forOwn`
|
|
|
6427 |
* may be used for object iteration.
|
|
|
6428 |
*
|
|
|
6429 |
* @static
|
|
|
6430 |
* @memberOf _
|
|
|
6431 |
* @alias each
|
|
498
|
6432 |
* @category Collection
|
|
442
|
6433 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
498
|
6434 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
|
6435 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
442
|
6436 |
* @returns {Array|Object|string} Returns `collection`.
|
|
|
6437 |
* @example
|
|
|
6438 |
*
|
|
498
|
6439 |
* _([1, 2]).forEach(function(n) {
|
|
|
6440 |
* console.log(n);
|
|
|
6441 |
* }).value();
|
|
|
6442 |
* // => logs each value from left to right and returns the array
|
|
|
6443 |
*
|
|
|
6444 |
* _.forEach({ 'a': 1, 'b': 2 }, function(n, key) {
|
|
|
6445 |
* console.log(n, key);
|
|
|
6446 |
* });
|
|
|
6447 |
* // => logs each value-key pair and returns the object (iteration order is not guaranteed)
|
|
|
6448 |
*/
|
|
|
6449 |
var forEach = createForEach(arrayEach, baseEach);
|
|
|
6450 |
|
|
|
6451 |
/**
|
|
|
6452 |
* This method is like `_.forEach` except that it iterates over elements of
|
|
|
6453 |
* `collection` from right to left.
|
|
442
|
6454 |
*
|
|
|
6455 |
* @static
|
|
|
6456 |
* @memberOf _
|
|
|
6457 |
* @alias eachRight
|
|
498
|
6458 |
* @category Collection
|
|
442
|
6459 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
498
|
6460 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
|
6461 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
442
|
6462 |
* @returns {Array|Object|string} Returns `collection`.
|
|
|
6463 |
* @example
|
|
|
6464 |
*
|
|
498
|
6465 |
* _([1, 2]).forEachRight(function(n) {
|
|
|
6466 |
* console.log(n);
|
|
|
6467 |
* }).value();
|
|
|
6468 |
* // => logs each value from right to left and returns the array
|
|
|
6469 |
*/
|
|
|
6470 |
var forEachRight = createForEach(arrayEachRight, baseEachRight);
|
|
|
6471 |
|
|
|
6472 |
/**
|
|
|
6473 |
* Creates an object composed of keys generated from the results of running
|
|
|
6474 |
* each element of `collection` through `iteratee`. The corresponding value
|
|
|
6475 |
* of each key is an array of the elements responsible for generating the key.
|
|
|
6476 |
* The `iteratee` is bound to `thisArg` and invoked with three arguments:
|
|
|
6477 |
* (value, index|key, collection).
|
|
|
6478 |
*
|
|
|
6479 |
* If a property name is provided for `iteratee` the created `_.property`
|
|
|
6480 |
* style callback returns the property value of the given element.
|
|
|
6481 |
*
|
|
|
6482 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
6483 |
* style callback returns `true` for elements that have a matching property
|
|
|
6484 |
* value, else `false`.
|
|
|
6485 |
*
|
|
|
6486 |
* If an object is provided for `iteratee` the created `_.matches` style
|
|
|
6487 |
* callback returns `true` for elements that have the properties of the given
|
|
|
6488 |
* object, else `false`.
|
|
|
6489 |
*
|
|
|
6490 |
* @static
|
|
|
6491 |
* @memberOf _
|
|
|
6492 |
* @category Collection
|
|
|
6493 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
|
6494 |
* @param {Function|Object|string} [iteratee=_.identity] The function invoked
|
|
|
6495 |
* per iteration.
|
|
|
6496 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
|
6497 |
* @returns {Object} Returns the composed aggregate object.
|
|
|
6498 |
* @example
|
|
|
6499 |
*
|
|
|
6500 |
* _.groupBy([4.2, 6.1, 6.4], function(n) {
|
|
|
6501 |
* return Math.floor(n);
|
|
|
6502 |
* });
|
|
|
6503 |
* // => { '4': [4.2], '6': [6.1, 6.4] }
|
|
|
6504 |
*
|
|
|
6505 |
* _.groupBy([4.2, 6.1, 6.4], function(n) {
|
|
|
6506 |
* return this.floor(n);
|
|
|
6507 |
* }, Math);
|
|
|
6508 |
* // => { '4': [4.2], '6': [6.1, 6.4] }
|
|
|
6509 |
*
|
|
|
6510 |
* // using the `_.property` callback shorthand
|
|
|
6511 |
* _.groupBy(['one', 'two', 'three'], 'length');
|
|
|
6512 |
* // => { '3': ['one', 'two'], '5': ['three'] }
|
|
|
6513 |
*/
|
|
|
6514 |
var groupBy = createAggregator(function(result, value, key) {
|
|
|
6515 |
if (hasOwnProperty.call(result, key)) {
|
|
|
6516 |
result[key].push(value);
|
|
442
|
6517 |
} else {
|
|
498
|
6518 |
result[key] = [value];
|
|
|
6519 |
}
|
|
|
6520 |
});
|
|
|
6521 |
|
|
|
6522 |
/**
|
|
|
6523 |
* Checks if `target` is in `collection` using
|
|
|
6524 |
* [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
|
|
|
6525 |
* for equality comparisons. If `fromIndex` is negative, it's used as the offset
|
|
|
6526 |
* from the end of `collection`.
|
|
|
6527 |
*
|
|
|
6528 |
* @static
|
|
|
6529 |
* @memberOf _
|
|
|
6530 |
* @alias contains, include
|
|
|
6531 |
* @category Collection
|
|
|
6532 |
* @param {Array|Object|string} collection The collection to search.
|
|
|
6533 |
* @param {*} target The value to search for.
|
|
|
6534 |
* @param {number} [fromIndex=0] The index to search from.
|
|
|
6535 |
* @param- {Object} [guard] Enables use as a callback for functions like `_.reduce`.
|
|
|
6536 |
* @returns {boolean} Returns `true` if a matching element is found, else `false`.
|
|
|
6537 |
* @example
|
|
|
6538 |
*
|
|
|
6539 |
* _.includes([1, 2, 3], 1);
|
|
|
6540 |
* // => true
|
|
|
6541 |
*
|
|
|
6542 |
* _.includes([1, 2, 3], 1, 2);
|
|
|
6543 |
* // => false
|
|
|
6544 |
*
|
|
|
6545 |
* _.includes({ 'user': 'fred', 'age': 40 }, 'fred');
|
|
|
6546 |
* // => true
|
|
|
6547 |
*
|
|
|
6548 |
* _.includes('pebbles', 'eb');
|
|
|
6549 |
* // => true
|
|
|
6550 |
*/
|
|
|
6551 |
function includes(collection, target, fromIndex, guard) {
|
|
|
6552 |
var length = collection ? getLength(collection) : 0;
|
|
|
6553 |
if (!isLength(length)) {
|
|
|
6554 |
collection = values(collection);
|
|
|
6555 |
length = collection.length;
|
|
|
6556 |
}
|
|
|
6557 |
if (typeof fromIndex != 'number' || (guard && isIterateeCall(target, fromIndex, guard))) {
|
|
|
6558 |
fromIndex = 0;
|
|
|
6559 |
} else {
|
|
|
6560 |
fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : (fromIndex || 0);
|
|
|
6561 |
}
|
|
|
6562 |
return (typeof collection == 'string' || !isArray(collection) && isString(collection))
|
|
|
6563 |
? (fromIndex <= length && collection.indexOf(target, fromIndex) > -1)
|
|
|
6564 |
: (!!length && getIndexOf(collection, target, fromIndex) > -1);
|
|
442
|
6565 |
}
|
|
|
6566 |
|
|
|
6567 |
/**
|
|
|
6568 |
* Creates an object composed of keys generated from the results of running
|
|
498
|
6569 |
* each element of `collection` through `iteratee`. The corresponding value
|
|
|
6570 |
* of each key is the last element responsible for generating the key. The
|
|
|
6571 |
* iteratee function is bound to `thisArg` and invoked with three arguments:
|
|
442
|
6572 |
* (value, index|key, collection).
|
|
|
6573 |
*
|
|
498
|
6574 |
* If a property name is provided for `iteratee` the created `_.property`
|
|
|
6575 |
* style callback returns the property value of the given element.
|
|
|
6576 |
*
|
|
|
6577 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
6578 |
* style callback returns `true` for elements that have a matching property
|
|
|
6579 |
* value, else `false`.
|
|
|
6580 |
*
|
|
|
6581 |
* If an object is provided for `iteratee` the created `_.matches` style
|
|
|
6582 |
* callback returns `true` for elements that have the properties of the given
|
|
|
6583 |
* object, else `false`.
|
|
|
6584 |
*
|
|
|
6585 |
* @static
|
|
|
6586 |
* @memberOf _
|
|
|
6587 |
* @category Collection
|
|
442
|
6588 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
498
|
6589 |
* @param {Function|Object|string} [iteratee=_.identity] The function invoked
|
|
|
6590 |
* per iteration.
|
|
|
6591 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
442
|
6592 |
* @returns {Object} Returns the composed aggregate object.
|
|
|
6593 |
* @example
|
|
|
6594 |
*
|
|
498
|
6595 |
* var keyData = [
|
|
442
|
6596 |
* { 'dir': 'left', 'code': 97 },
|
|
|
6597 |
* { 'dir': 'right', 'code': 100 }
|
|
|
6598 |
* ];
|
|
|
6599 |
*
|
|
498
|
6600 |
* _.indexBy(keyData, 'dir');
|
|
442
|
6601 |
* // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }
|
|
|
6602 |
*
|
|
498
|
6603 |
* _.indexBy(keyData, function(object) {
|
|
|
6604 |
* return String.fromCharCode(object.code);
|
|
|
6605 |
* });
|
|
442
|
6606 |
* // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
|
|
|
6607 |
*
|
|
498
|
6608 |
* _.indexBy(keyData, function(object) {
|
|
|
6609 |
* return this.fromCharCode(object.code);
|
|
|
6610 |
* }, String);
|
|
442
|
6611 |
* // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
|
|
|
6612 |
*/
|
|
|
6613 |
var indexBy = createAggregator(function(result, value, key) {
|
|
|
6614 |
result[key] = value;
|
|
|
6615 |
});
|
|
|
6616 |
|
|
|
6617 |
/**
|
|
498
|
6618 |
* Invokes the method at `path` of each element in `collection`, returning
|
|
|
6619 |
* an array of the results of each invoked method. Any additional arguments
|
|
|
6620 |
* are provided to each invoked method. If `methodName` is a function it's
|
|
|
6621 |
* invoked for, and `this` bound to, each element in `collection`.
|
|
|
6622 |
*
|
|
|
6623 |
* @static
|
|
|
6624 |
* @memberOf _
|
|
|
6625 |
* @category Collection
|
|
442
|
6626 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
498
|
6627 |
* @param {Array|Function|string} path The path of the method to invoke or
|
|
442
|
6628 |
* the function invoked per iteration.
|
|
498
|
6629 |
* @param {...*} [args] The arguments to invoke the method with.
|
|
|
6630 |
* @returns {Array} Returns the array of results.
|
|
442
|
6631 |
* @example
|
|
|
6632 |
*
|
|
|
6633 |
* _.invoke([[5, 1, 7], [3, 2, 1]], 'sort');
|
|
|
6634 |
* // => [[1, 5, 7], [1, 2, 3]]
|
|
|
6635 |
*
|
|
|
6636 |
* _.invoke([123, 456], String.prototype.split, '');
|
|
|
6637 |
* // => [['1', '2', '3'], ['4', '5', '6']]
|
|
|
6638 |
*/
|
|
498
|
6639 |
var invoke = restParam(function(collection, path, args) {
|
|
|
6640 |
var index = -1,
|
|
|
6641 |
isFunc = typeof path == 'function',
|
|
|
6642 |
isProp = isKey(path),
|
|
|
6643 |
result = isArrayLike(collection) ? Array(collection.length) : [];
|
|
|
6644 |
|
|
|
6645 |
baseEach(collection, function(value) {
|
|
|
6646 |
var func = isFunc ? path : ((isProp && value != null) ? value[path] : undefined);
|
|
|
6647 |
result[++index] = func ? func.apply(value, args) : invokePath(value, path, args);
|
|
442
|
6648 |
});
|
|
|
6649 |
return result;
|
|
498
|
6650 |
});
|
|
|
6651 |
|
|
|
6652 |
/**
|
|
|
6653 |
* Creates an array of values by running each element in `collection` through
|
|
|
6654 |
* `iteratee`. The `iteratee` is bound to `thisArg` and invoked with three
|
|
|
6655 |
* arguments: (value, index|key, collection).
|
|
|
6656 |
*
|
|
|
6657 |
* If a property name is provided for `iteratee` the created `_.property`
|
|
|
6658 |
* style callback returns the property value of the given element.
|
|
|
6659 |
*
|
|
|
6660 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
6661 |
* style callback returns `true` for elements that have a matching property
|
|
|
6662 |
* value, else `false`.
|
|
|
6663 |
*
|
|
|
6664 |
* If an object is provided for `iteratee` the created `_.matches` style
|
|
|
6665 |
* callback returns `true` for elements that have the properties of the given
|
|
|
6666 |
* object, else `false`.
|
|
|
6667 |
*
|
|
|
6668 |
* Many lodash methods are guarded to work as iteratees for methods like
|
|
|
6669 |
* `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
|
|
|
6670 |
*
|
|
|
6671 |
* The guarded methods are:
|
|
|
6672 |
* `ary`, `callback`, `chunk`, `clone`, `create`, `curry`, `curryRight`,
|
|
|
6673 |
* `drop`, `dropRight`, `every`, `fill`, `flatten`, `invert`, `max`, `min`,
|
|
|
6674 |
* `parseInt`, `slice`, `sortBy`, `take`, `takeRight`, `template`, `trim`,
|
|
|
6675 |
* `trimLeft`, `trimRight`, `trunc`, `random`, `range`, `sample`, `some`,
|
|
|
6676 |
* `sum`, `uniq`, and `words`
|
|
442
|
6677 |
*
|
|
|
6678 |
* @static
|
|
|
6679 |
* @memberOf _
|
|
|
6680 |
* @alias collect
|
|
498
|
6681 |
* @category Collection
|
|
442
|
6682 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
498
|
6683 |
* @param {Function|Object|string} [iteratee=_.identity] The function invoked
|
|
|
6684 |
* per iteration.
|
|
|
6685 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
|
6686 |
* @returns {Array} Returns the new mapped array.
|
|
|
6687 |
* @example
|
|
|
6688 |
*
|
|
|
6689 |
* function timesThree(n) {
|
|
|
6690 |
* return n * 3;
|
|
|
6691 |
* }
|
|
|
6692 |
*
|
|
|
6693 |
* _.map([1, 2], timesThree);
|
|
|
6694 |
* // => [3, 6]
|
|
|
6695 |
*
|
|
|
6696 |
* _.map({ 'a': 1, 'b': 2 }, timesThree);
|
|
|
6697 |
* // => [3, 6] (iteration order is not guaranteed)
|
|
|
6698 |
*
|
|
|
6699 |
* var users = [
|
|
|
6700 |
* { 'user': 'barney' },
|
|
|
6701 |
* { 'user': 'fred' }
|
|
442
|
6702 |
* ];
|
|
|
6703 |
*
|
|
498
|
6704 |
* // using the `_.property` callback shorthand
|
|
|
6705 |
* _.map(users, 'user');
|
|
|
6706 |
* // => ['barney', 'fred']
|
|
|
6707 |
*/
|
|
|
6708 |
function map(collection, iteratee, thisArg) {
|
|
|
6709 |
var func = isArray(collection) ? arrayMap : baseMap;
|
|
|
6710 |
iteratee = getCallback(iteratee, thisArg, 3);
|
|
|
6711 |
return func(collection, iteratee);
|
|
|
6712 |
}
|
|
|
6713 |
|
|
|
6714 |
/**
|
|
|
6715 |
* Creates an array of elements split into two groups, the first of which
|
|
|
6716 |
* contains elements `predicate` returns truthy for, while the second of which
|
|
|
6717 |
* contains elements `predicate` returns falsey for. The predicate is bound
|
|
|
6718 |
* to `thisArg` and invoked with three arguments: (value, index|key, collection).
|
|
|
6719 |
*
|
|
|
6720 |
* If a property name is provided for `predicate` the created `_.property`
|
|
|
6721 |
* style callback returns the property value of the given element.
|
|
|
6722 |
*
|
|
|
6723 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
6724 |
* style callback returns `true` for elements that have a matching property
|
|
|
6725 |
* value, else `false`.
|
|
|
6726 |
*
|
|
|
6727 |
* If an object is provided for `predicate` the created `_.matches` style
|
|
|
6728 |
* callback returns `true` for elements that have the properties of the given
|
|
|
6729 |
* object, else `false`.
|
|
|
6730 |
*
|
|
|
6731 |
* @static
|
|
|
6732 |
* @memberOf _
|
|
|
6733 |
* @category Collection
|
|
442
|
6734 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
498
|
6735 |
* @param {Function|Object|string} [predicate=_.identity] The function invoked
|
|
|
6736 |
* per iteration.
|
|
|
6737 |
* @param {*} [thisArg] The `this` binding of `predicate`.
|
|
|
6738 |
* @returns {Array} Returns the array of grouped elements.
|
|
|
6739 |
* @example
|
|
|
6740 |
*
|
|
|
6741 |
* _.partition([1, 2, 3], function(n) {
|
|
|
6742 |
* return n % 2;
|
|
|
6743 |
* });
|
|
|
6744 |
* // => [[1, 3], [2]]
|
|
|
6745 |
*
|
|
|
6746 |
* _.partition([1.2, 2.3, 3.4], function(n) {
|
|
|
6747 |
* return this.floor(n) % 2;
|
|
|
6748 |
* }, Math);
|
|
|
6749 |
* // => [[1.2, 3.4], [2.3]]
|
|
|
6750 |
*
|
|
|
6751 |
* var users = [
|
|
|
6752 |
* { 'user': 'barney', 'age': 36, 'active': false },
|
|
|
6753 |
* { 'user': 'fred', 'age': 40, 'active': true },
|
|
|
6754 |
* { 'user': 'pebbles', 'age': 1, 'active': false }
|
|
442
|
6755 |
* ];
|
|
|
6756 |
*
|
|
498
|
6757 |
* var mapper = function(array) {
|
|
|
6758 |
* return _.pluck(array, 'user');
|
|
|
6759 |
* };
|
|
|
6760 |
*
|
|
|
6761 |
* // using the `_.matches` callback shorthand
|
|
|
6762 |
* _.map(_.partition(users, { 'age': 1, 'active': false }), mapper);
|
|
|
6763 |
* // => [['pebbles'], ['barney', 'fred']]
|
|
|
6764 |
*
|
|
|
6765 |
* // using the `_.matchesProperty` callback shorthand
|
|
|
6766 |
* _.map(_.partition(users, 'active', false), mapper);
|
|
|
6767 |
* // => [['barney', 'pebbles'], ['fred']]
|
|
|
6768 |
*
|
|
|
6769 |
* // using the `_.property` callback shorthand
|
|
|
6770 |
* _.map(_.partition(users, 'active'), mapper);
|
|
|
6771 |
* // => [['fred'], ['barney', 'pebbles']]
|
|
|
6772 |
*/
|
|
|
6773 |
var partition = createAggregator(function(result, value, key) {
|
|
|
6774 |
result[key ? 0 : 1].push(value);
|
|
|
6775 |
}, function() { return [[], []]; });
|
|
|
6776 |
|
|
|
6777 |
/**
|
|
|
6778 |
* Gets the property value of `path` from all elements in `collection`.
|
|
|
6779 |
*
|
|
|
6780 |
* @static
|
|
|
6781 |
* @memberOf _
|
|
|
6782 |
* @category Collection
|
|
442
|
6783 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
498
|
6784 |
* @param {Array|string} path The path of the property to pluck.
|
|
|
6785 |
* @returns {Array} Returns the property values.
|
|
|
6786 |
* @example
|
|
|
6787 |
*
|
|
|
6788 |
* var users = [
|
|
|
6789 |
* { 'user': 'barney', 'age': 36 },
|
|
|
6790 |
* { 'user': 'fred', 'age': 40 }
|
|
442
|
6791 |
* ];
|
|
|
6792 |
*
|
|
498
|
6793 |
* _.pluck(users, 'user');
|
|
442
|
6794 |
* // => ['barney', 'fred']
|
|
498
|
6795 |
*
|
|
|
6796 |
* var userIndex = _.indexBy(users, 'user');
|
|
|
6797 |
* _.pluck(userIndex, 'age');
|
|
|
6798 |
* // => [36, 40] (iteration order is not guaranteed)
|
|
|
6799 |
*/
|
|
|
6800 |
function pluck(collection, path) {
|
|
|
6801 |
return map(collection, property(path));
|
|
|
6802 |
}
|
|
|
6803 |
|
|
|
6804 |
/**
|
|
|
6805 |
* Reduces `collection` to a value which is the accumulated result of running
|
|
|
6806 |
* each element in `collection` through `iteratee`, where each successive
|
|
|
6807 |
* invocation is supplied the return value of the previous. If `accumulator`
|
|
|
6808 |
* is not provided the first element of `collection` is used as the initial
|
|
|
6809 |
* value. The `iteratee` is bound to `thisArg` and invoked with four arguments:
|
|
|
6810 |
* (accumulator, value, index|key, collection).
|
|
|
6811 |
*
|
|
|
6812 |
* Many lodash methods are guarded to work as iteratees for methods like
|
|
|
6813 |
* `_.reduce`, `_.reduceRight`, and `_.transform`.
|
|
|
6814 |
*
|
|
|
6815 |
* The guarded methods are:
|
|
|
6816 |
* `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `sortByAll`,
|
|
|
6817 |
* and `sortByOrder`
|
|
442
|
6818 |
*
|
|
|
6819 |
* @static
|
|
|
6820 |
* @memberOf _
|
|
|
6821 |
* @alias foldl, inject
|
|
498
|
6822 |
* @category Collection
|
|
442
|
6823 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
498
|
6824 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
|
6825 |
* @param {*} [accumulator] The initial value.
|
|
|
6826 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
442
|
6827 |
* @returns {*} Returns the accumulated value.
|
|
|
6828 |
* @example
|
|
|
6829 |
*
|
|
498
|
6830 |
* _.reduce([1, 2], function(total, n) {
|
|
|
6831 |
* return total + n;
|
|
442
|
6832 |
* });
|
|
498
|
6833 |
* // => 3
|
|
|
6834 |
*
|
|
|
6835 |
* _.reduce({ 'a': 1, 'b': 2 }, function(result, n, key) {
|
|
|
6836 |
* result[key] = n * 3;
|
|
442
|
6837 |
* return result;
|
|
|
6838 |
* }, {});
|
|
498
|
6839 |
* // => { 'a': 3, 'b': 6 } (iteration order is not guaranteed)
|
|
|
6840 |
*/
|
|
|
6841 |
var reduce = createReduce(arrayReduce, baseEach);
|
|
|
6842 |
|
|
|
6843 |
/**
|
|
|
6844 |
* This method is like `_.reduce` except that it iterates over elements of
|
|
|
6845 |
* `collection` from right to left.
|
|
442
|
6846 |
*
|
|
|
6847 |
* @static
|
|
|
6848 |
* @memberOf _
|
|
|
6849 |
* @alias foldr
|
|
498
|
6850 |
* @category Collection
|
|
442
|
6851 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
498
|
6852 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
|
6853 |
* @param {*} [accumulator] The initial value.
|
|
|
6854 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
442
|
6855 |
* @returns {*} Returns the accumulated value.
|
|
|
6856 |
* @example
|
|
|
6857 |
*
|
|
498
|
6858 |
* var array = [[0, 1], [2, 3], [4, 5]];
|
|
|
6859 |
*
|
|
|
6860 |
* _.reduceRight(array, function(flattened, other) {
|
|
|
6861 |
* return flattened.concat(other);
|
|
|
6862 |
* }, []);
|
|
442
|
6863 |
* // => [4, 5, 2, 3, 0, 1]
|
|
|
6864 |
*/
|
|
498
|
6865 |
var reduceRight = createReduce(arrayReduceRight, baseEachRight);
|
|
|
6866 |
|
|
|
6867 |
/**
|
|
|
6868 |
* The opposite of `_.filter`; this method returns the elements of `collection`
|
|
|
6869 |
* that `predicate` does **not** return truthy for.
|
|
|
6870 |
*
|
|
|
6871 |
* @static
|
|
|
6872 |
* @memberOf _
|
|
|
6873 |
* @category Collection
|
|
|
6874 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
|
6875 |
* @param {Function|Object|string} [predicate=_.identity] The function invoked
|
|
|
6876 |
* per iteration.
|
|
|
6877 |
* @param {*} [thisArg] The `this` binding of `predicate`.
|
|
|
6878 |
* @returns {Array} Returns the new filtered array.
|
|
|
6879 |
* @example
|
|
|
6880 |
*
|
|
|
6881 |
* _.reject([1, 2, 3, 4], function(n) {
|
|
|
6882 |
* return n % 2 == 0;
|
|
|
6883 |
* });
|
|
|
6884 |
* // => [1, 3]
|
|
|
6885 |
*
|
|
|
6886 |
* var users = [
|
|
|
6887 |
* { 'user': 'barney', 'age': 36, 'active': false },
|
|
|
6888 |
* { 'user': 'fred', 'age': 40, 'active': true }
|
|
|
6889 |
* ];
|
|
|
6890 |
*
|
|
|
6891 |
* // using the `_.matches` callback shorthand
|
|
|
6892 |
* _.pluck(_.reject(users, { 'age': 40, 'active': true }), 'user');
|
|
|
6893 |
* // => ['barney']
|
|
|
6894 |
*
|
|
|
6895 |
* // using the `_.matchesProperty` callback shorthand
|
|
|
6896 |
* _.pluck(_.reject(users, 'active', false), 'user');
|
|
|
6897 |
* // => ['fred']
|
|
|
6898 |
*
|
|
|
6899 |
* // using the `_.property` callback shorthand
|
|
|
6900 |
* _.pluck(_.reject(users, 'active'), 'user');
|
|
|
6901 |
* // => ['barney']
|
|
|
6902 |
*/
|
|
|
6903 |
function reject(collection, predicate, thisArg) {
|
|
|
6904 |
var func = isArray(collection) ? arrayFilter : baseFilter;
|
|
|
6905 |
predicate = getCallback(predicate, thisArg, 3);
|
|
|
6906 |
return func(collection, function(value, index, collection) {
|
|
|
6907 |
return !predicate(value, index, collection);
|
|
442
|
6908 |
});
|
|
498
|
6909 |
}
|
|
|
6910 |
|
|
|
6911 |
/**
|
|
|
6912 |
* Gets a random element or `n` random elements from a collection.
|
|
|
6913 |
*
|
|
|
6914 |
* @static
|
|
|
6915 |
* @memberOf _
|
|
|
6916 |
* @category Collection
|
|
442
|
6917 |
* @param {Array|Object|string} collection The collection to sample.
|
|
|
6918 |
* @param {number} [n] The number of elements to sample.
|
|
498
|
6919 |
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
|
|
|
6920 |
* @returns {*} Returns the random sample(s).
|
|
442
|
6921 |
* @example
|
|
|
6922 |
*
|
|
|
6923 |
* _.sample([1, 2, 3, 4]);
|
|
|
6924 |
* // => 2
|
|
|
6925 |
*
|
|
|
6926 |
* _.sample([1, 2, 3, 4], 2);
|
|
|
6927 |
* // => [3, 1]
|
|
|
6928 |
*/
|
|
|
6929 |
function sample(collection, n, guard) {
|
|
498
|
6930 |
if (guard ? isIterateeCall(collection, n, guard) : n == null) {
|
|
|
6931 |
collection = toIterable(collection);
|
|
|
6932 |
var length = collection.length;
|
|
|
6933 |
return length > 0 ? collection[baseRandom(0, length - 1)] : undefined;
|
|
|
6934 |
}
|
|
|
6935 |
var index = -1,
|
|
|
6936 |
result = toArray(collection),
|
|
|
6937 |
length = result.length,
|
|
|
6938 |
lastIndex = length - 1;
|
|
|
6939 |
|
|
|
6940 |
n = nativeMin(n < 0 ? 0 : (+n || 0), length);
|
|
|
6941 |
while (++index < n) {
|
|
|
6942 |
var rand = baseRandom(index, lastIndex),
|
|
|
6943 |
value = result[rand];
|
|
|
6944 |
|
|
|
6945 |
result[rand] = result[index];
|
|
|
6946 |
result[index] = value;
|
|
|
6947 |
}
|
|
|
6948 |
result.length = n;
|
|
442
|
6949 |
return result;
|
|
|
6950 |
}
|
|
|
6951 |
|
|
|
6952 |
/**
|
|
498
|
6953 |
* Creates an array of shuffled values, using a version of the
|
|
|
6954 |
* [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).
|
|
|
6955 |
*
|
|
|
6956 |
* @static
|
|
|
6957 |
* @memberOf _
|
|
|
6958 |
* @category Collection
|
|
442
|
6959 |
* @param {Array|Object|string} collection The collection to shuffle.
|
|
498
|
6960 |
* @returns {Array} Returns the new shuffled array.
|
|
|
6961 |
* @example
|
|
|
6962 |
*
|
|
|
6963 |
* _.shuffle([1, 2, 3, 4]);
|
|
|
6964 |
* // => [4, 1, 3, 2]
|
|
442
|
6965 |
*/
|
|
|
6966 |
function shuffle(collection) {
|
|
498
|
6967 |
return sample(collection, POSITIVE_INFINITY);
|
|
|
6968 |
}
|
|
|
6969 |
|
|
|
6970 |
/**
|
|
|
6971 |
* Gets the size of `collection` by returning its length for array-like
|
|
|
6972 |
* values or the number of own enumerable properties for objects.
|
|
|
6973 |
*
|
|
|
6974 |
* @static
|
|
|
6975 |
* @memberOf _
|
|
|
6976 |
* @category Collection
|
|
442
|
6977 |
* @param {Array|Object|string} collection The collection to inspect.
|
|
498
|
6978 |
* @returns {number} Returns the size of `collection`.
|
|
|
6979 |
* @example
|
|
|
6980 |
*
|
|
|
6981 |
* _.size([1, 2, 3]);
|
|
|
6982 |
* // => 3
|
|
|
6983 |
*
|
|
|
6984 |
* _.size({ 'a': 1, 'b': 2 });
|
|
442
|
6985 |
* // => 2
|
|
|
6986 |
*
|
|
|
6987 |
* _.size('pebbles');
|
|
|
6988 |
* // => 7
|
|
|
6989 |
*/
|
|
|
6990 |
function size(collection) {
|
|
498
|
6991 |
var length = collection ? getLength(collection) : 0;
|
|
|
6992 |
return isLength(length) ? length : keys(collection).length;
|
|
|
6993 |
}
|
|
|
6994 |
|
|
|
6995 |
/**
|
|
|
6996 |
* Checks if `predicate` returns truthy for **any** element of `collection`.
|
|
|
6997 |
* The function returns as soon as it finds a passing value and does not iterate
|
|
|
6998 |
* over the entire collection. The predicate is bound to `thisArg` and invoked
|
|
|
6999 |
* with three arguments: (value, index|key, collection).
|
|
|
7000 |
*
|
|
|
7001 |
* If a property name is provided for `predicate` the created `_.property`
|
|
|
7002 |
* style callback returns the property value of the given element.
|
|
|
7003 |
*
|
|
|
7004 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
7005 |
* style callback returns `true` for elements that have a matching property
|
|
|
7006 |
* value, else `false`.
|
|
|
7007 |
*
|
|
|
7008 |
* If an object is provided for `predicate` the created `_.matches` style
|
|
|
7009 |
* callback returns `true` for elements that have the properties of the given
|
|
|
7010 |
* object, else `false`.
|
|
442
|
7011 |
*
|
|
|
7012 |
* @static
|
|
|
7013 |
* @memberOf _
|
|
|
7014 |
* @alias any
|
|
498
|
7015 |
* @category Collection
|
|
442
|
7016 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
498
|
7017 |
* @param {Function|Object|string} [predicate=_.identity] The function invoked
|
|
|
7018 |
* per iteration.
|
|
|
7019 |
* @param {*} [thisArg] The `this` binding of `predicate`.
|
|
|
7020 |
* @returns {boolean} Returns `true` if any element passes the predicate check,
|
|
442
|
7021 |
* else `false`.
|
|
|
7022 |
* @example
|
|
|
7023 |
*
|
|
|
7024 |
* _.some([null, 0, 'yes', false], Boolean);
|
|
|
7025 |
* // => true
|
|
|
7026 |
*
|
|
498
|
7027 |
* var users = [
|
|
|
7028 |
* { 'user': 'barney', 'active': true },
|
|
|
7029 |
* { 'user': 'fred', 'active': false }
|
|
442
|
7030 |
* ];
|
|
|
7031 |
*
|
|
498
|
7032 |
* // using the `_.matches` callback shorthand
|
|
|
7033 |
* _.some(users, { 'user': 'barney', 'active': false });
|
|
442
|
7034 |
* // => false
|
|
498
|
7035 |
*
|
|
|
7036 |
* // using the `_.matchesProperty` callback shorthand
|
|
|
7037 |
* _.some(users, 'active', false);
|
|
|
7038 |
* // => true
|
|
|
7039 |
*
|
|
|
7040 |
* // using the `_.property` callback shorthand
|
|
|
7041 |
* _.some(users, 'active');
|
|
|
7042 |
* // => true
|
|
|
7043 |
*/
|
|
|
7044 |
function some(collection, predicate, thisArg) {
|
|
|
7045 |
var func = isArray(collection) ? arraySome : baseSome;
|
|
|
7046 |
if (thisArg && isIterateeCall(collection, predicate, thisArg)) {
|
|
|
7047 |
predicate = undefined;
|
|
|
7048 |
}
|
|
|
7049 |
if (typeof predicate != 'function' || thisArg !== undefined) {
|
|
|
7050 |
predicate = getCallback(predicate, thisArg, 3);
|
|
|
7051 |
}
|
|
|
7052 |
return func(collection, predicate);
|
|
442
|
7053 |
}
|
|
|
7054 |
|
|
|
7055 |
/**
|
|
|
7056 |
* Creates an array of elements, sorted in ascending order by the results of
|
|
498
|
7057 |
* running each element in a collection through `iteratee`. This method performs
|
|
|
7058 |
* a stable sort, that is, it preserves the original sort order of equal elements.
|
|
|
7059 |
* The `iteratee` is bound to `thisArg` and invoked with three arguments:
|
|
|
7060 |
* (value, index|key, collection).
|
|
|
7061 |
*
|
|
|
7062 |
* If a property name is provided for `iteratee` the created `_.property`
|
|
|
7063 |
* style callback returns the property value of the given element.
|
|
|
7064 |
*
|
|
|
7065 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
7066 |
* style callback returns `true` for elements that have a matching property
|
|
|
7067 |
* value, else `false`.
|
|
|
7068 |
*
|
|
|
7069 |
* If an object is provided for `iteratee` the created `_.matches` style
|
|
|
7070 |
* callback returns `true` for elements that have the properties of the given
|
|
|
7071 |
* object, else `false`.
|
|
|
7072 |
*
|
|
|
7073 |
* @static
|
|
|
7074 |
* @memberOf _
|
|
|
7075 |
* @category Collection
|
|
442
|
7076 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
498
|
7077 |
* @param {Function|Object|string} [iteratee=_.identity] The function invoked
|
|
|
7078 |
* per iteration.
|
|
|
7079 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
|
7080 |
* @returns {Array} Returns the new sorted array.
|
|
|
7081 |
* @example
|
|
|
7082 |
*
|
|
|
7083 |
* _.sortBy([1, 2, 3], function(n) {
|
|
|
7084 |
* return Math.sin(n);
|
|
442
|
7085 |
* });
|
|
498
|
7086 |
* // => [3, 1, 2]
|
|
|
7087 |
*
|
|
|
7088 |
* _.sortBy([1, 2, 3], function(n) {
|
|
|
7089 |
* return this.sin(n);
|
|
|
7090 |
* }, Math);
|
|
|
7091 |
* // => [3, 1, 2]
|
|
|
7092 |
*
|
|
|
7093 |
* var users = [
|
|
|
7094 |
* { 'user': 'fred' },
|
|
|
7095 |
* { 'user': 'pebbles' },
|
|
|
7096 |
* { 'user': 'barney' }
|
|
442
|
7097 |
* ];
|
|
|
7098 |
*
|
|
498
|
7099 |
* // using the `_.property` callback shorthand
|
|
|
7100 |
* _.pluck(_.sortBy(users, 'user'), 'user');
|
|
|
7101 |
* // => ['barney', 'fred', 'pebbles']
|
|
|
7102 |
*/
|
|
|
7103 |
function sortBy(collection, iteratee, thisArg) {
|
|
|
7104 |
if (collection == null) {
|
|
|
7105 |
return [];
|
|
|
7106 |
}
|
|
|
7107 |
if (thisArg && isIterateeCall(collection, iteratee, thisArg)) {
|
|
|
7108 |
iteratee = undefined;
|
|
|
7109 |
}
|
|
|
7110 |
var index = -1;
|
|
|
7111 |
iteratee = getCallback(iteratee, thisArg, 3);
|
|
|
7112 |
|
|
|
7113 |
var result = baseMap(collection, function(value, key, collection) {
|
|
|
7114 |
return { 'criteria': iteratee(value, key, collection), 'index': ++index, 'value': value };
|
|
|
7115 |
});
|
|
|
7116 |
return baseSortBy(result, compareAscending);
|
|
|
7117 |
}
|
|
|
7118 |
|
|
|
7119 |
/**
|
|
|
7120 |
* This method is like `_.sortBy` except that it can sort by multiple iteratees
|
|
|
7121 |
* or property names.
|
|
|
7122 |
*
|
|
|
7123 |
* If a property name is provided for an iteratee the created `_.property`
|
|
|
7124 |
* style callback returns the property value of the given element.
|
|
|
7125 |
*
|
|
|
7126 |
* If an object is provided for an iteratee the created `_.matches` style
|
|
|
7127 |
* callback returns `true` for elements that have the properties of the given
|
|
|
7128 |
* object, else `false`.
|
|
|
7129 |
*
|
|
|
7130 |
* @static
|
|
|
7131 |
* @memberOf _
|
|
|
7132 |
* @category Collection
|
|
|
7133 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
|
7134 |
* @param {...(Function|Function[]|Object|Object[]|string|string[])} iteratees
|
|
|
7135 |
* The iteratees to sort by, specified as individual values or arrays of values.
|
|
|
7136 |
* @returns {Array} Returns the new sorted array.
|
|
|
7137 |
* @example
|
|
|
7138 |
*
|
|
|
7139 |
* var users = [
|
|
|
7140 |
* { 'user': 'fred', 'age': 48 },
|
|
|
7141 |
* { 'user': 'barney', 'age': 36 },
|
|
|
7142 |
* { 'user': 'fred', 'age': 42 },
|
|
|
7143 |
* { 'user': 'barney', 'age': 34 }
|
|
442
|
7144 |
* ];
|
|
|
7145 |
*
|
|
498
|
7146 |
* _.map(_.sortByAll(users, ['user', 'age']), _.values);
|
|
|
7147 |
* // => [['barney', 34], ['barney', 36], ['fred', 42], ['fred', 48]]
|
|
|
7148 |
*
|
|
|
7149 |
* _.map(_.sortByAll(users, 'user', function(chr) {
|
|
|
7150 |
* return Math.floor(chr.age / 10);
|
|
|
7151 |
* }), _.values);
|
|
|
7152 |
* // => [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 42]]
|
|
|
7153 |
*/
|
|
|
7154 |
var sortByAll = restParam(function(collection, iteratees) {
|
|
|
7155 |
if (collection == null) {
|
|
|
7156 |
return [];
|
|
|
7157 |
}
|
|
|
7158 |
var guard = iteratees[2];
|
|
|
7159 |
if (guard && isIterateeCall(iteratees[0], iteratees[1], guard)) {
|
|
|
7160 |
iteratees.length = 1;
|
|
|
7161 |
}
|
|
|
7162 |
return baseSortByOrder(collection, baseFlatten(iteratees), []);
|
|
|
7163 |
});
|
|
|
7164 |
|
|
|
7165 |
/**
|
|
|
7166 |
* This method is like `_.sortByAll` except that it allows specifying the
|
|
|
7167 |
* sort orders of the iteratees to sort by. If `orders` is unspecified, all
|
|
|
7168 |
* values are sorted in ascending order. Otherwise, a value is sorted in
|
|
|
7169 |
* ascending order if its corresponding order is "asc", and descending if "desc".
|
|
|
7170 |
*
|
|
|
7171 |
* If a property name is provided for an iteratee the created `_.property`
|
|
|
7172 |
* style callback returns the property value of the given element.
|
|
|
7173 |
*
|
|
|
7174 |
* If an object is provided for an iteratee the created `_.matches` style
|
|
|
7175 |
* callback returns `true` for elements that have the properties of the given
|
|
|
7176 |
* object, else `false`.
|
|
|
7177 |
*
|
|
|
7178 |
* @static
|
|
|
7179 |
* @memberOf _
|
|
|
7180 |
* @category Collection
|
|
|
7181 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
|
7182 |
* @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
|
|
|
7183 |
* @param {boolean[]} [orders] The sort orders of `iteratees`.
|
|
|
7184 |
* @param- {Object} [guard] Enables use as a callback for functions like `_.reduce`.
|
|
|
7185 |
* @returns {Array} Returns the new sorted array.
|
|
|
7186 |
* @example
|
|
|
7187 |
*
|
|
|
7188 |
* var users = [
|
|
|
7189 |
* { 'user': 'fred', 'age': 48 },
|
|
|
7190 |
* { 'user': 'barney', 'age': 34 },
|
|
|
7191 |
* { 'user': 'fred', 'age': 42 },
|
|
|
7192 |
* { 'user': 'barney', 'age': 36 }
|
|
442
|
7193 |
* ];
|
|
|
7194 |
*
|
|
498
|
7195 |
* // sort by `user` in ascending order and by `age` in descending order
|
|
|
7196 |
* _.map(_.sortByOrder(users, ['user', 'age'], ['asc', 'desc']), _.values);
|
|
|
7197 |
* // => [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 42]]
|
|
|
7198 |
*/
|
|
|
7199 |
function sortByOrder(collection, iteratees, orders, guard) {
|
|
|
7200 |
if (collection == null) {
|
|
|
7201 |
return [];
|
|
|
7202 |
}
|
|
|
7203 |
if (guard && isIterateeCall(iteratees, orders, guard)) {
|
|
|
7204 |
orders = undefined;
|
|
|
7205 |
}
|
|
|
7206 |
if (!isArray(iteratees)) {
|
|
|
7207 |
iteratees = iteratees == null ? [] : [iteratees];
|
|
|
7208 |
}
|
|
|
7209 |
if (!isArray(orders)) {
|
|
|
7210 |
orders = orders == null ? [] : [orders];
|
|
|
7211 |
}
|
|
|
7212 |
return baseSortByOrder(collection, iteratees, orders);
|
|
|
7213 |
}
|
|
|
7214 |
|
|
|
7215 |
/**
|
|
|
7216 |
* Performs a deep comparison between each element in `collection` and the
|
|
|
7217 |
* source object, returning an array of all elements that have equivalent
|
|
|
7218 |
* property values.
|
|
|
7219 |
*
|
|
|
7220 |
* **Note:** This method supports comparing arrays, booleans, `Date` objects,
|
|
|
7221 |
* numbers, `Object` objects, regexes, and strings. Objects are compared by
|
|
|
7222 |
* their own, not inherited, enumerable properties. For comparing a single
|
|
|
7223 |
* own or inherited property value see `_.matchesProperty`.
|
|
|
7224 |
*
|
|
|
7225 |
* @static
|
|
|
7226 |
* @memberOf _
|
|
|
7227 |
* @category Collection
|
|
|
7228 |
* @param {Array|Object|string} collection The collection to search.
|
|
|
7229 |
* @param {Object} source The object of property values to match.
|
|
|
7230 |
* @returns {Array} Returns the new filtered array.
|
|
|
7231 |
* @example
|
|
|
7232 |
*
|
|
|
7233 |
* var users = [
|
|
|
7234 |
* { 'user': 'barney', 'age': 36, 'active': false, 'pets': ['hoppy'] },
|
|
|
7235 |
* { 'user': 'fred', 'age': 40, 'active': true, 'pets': ['baby puss', 'dino'] }
|
|
442
|
7236 |
* ];
|
|
|
7237 |
*
|
|
498
|
7238 |
* _.pluck(_.where(users, { 'age': 36, 'active': false }), 'user');
|
|
|
7239 |
* // => ['barney']
|
|
|
7240 |
*
|
|
|
7241 |
* _.pluck(_.where(users, { 'pets': ['dino'] }), 'user');
|
|
|
7242 |
* // => ['fred']
|
|
|
7243 |
*/
|
|
|
7244 |
function where(collection, source) {
|
|
|
7245 |
return filter(collection, baseMatches(source));
|
|
|
7246 |
}
|
|
|
7247 |
|
|
|
7248 |
/*------------------------------------------------------------------------*/
|
|
|
7249 |
|
|
|
7250 |
/**
|
|
|
7251 |
* Gets the number of milliseconds that have elapsed since the Unix epoch
|
|
|
7252 |
* (1 January 1970 00:00:00 UTC).
|
|
|
7253 |
*
|
|
|
7254 |
* @static
|
|
|
7255 |
* @memberOf _
|
|
|
7256 |
* @category Date
|
|
|
7257 |
* @example
|
|
|
7258 |
*
|
|
|
7259 |
* _.defer(function(stamp) {
|
|
|
7260 |
* console.log(_.now() - stamp);
|
|
|
7261 |
* }, _.now());
|
|
|
7262 |
* // => logs the number of milliseconds it took for the deferred function to be invoked
|
|
|
7263 |
*/
|
|
|
7264 |
var now = nativeNow || function() {
|
|
|
7265 |
return new Date().getTime();
|
|
|
7266 |
};
|
|
|
7267 |
|
|
|
7268 |
/*------------------------------------------------------------------------*/
|
|
|
7269 |
|
|
|
7270 |
/**
|
|
|
7271 |
* The opposite of `_.before`; this method creates a function that invokes
|
|
|
7272 |
* `func` once it's called `n` or more times.
|
|
|
7273 |
*
|
|
|
7274 |
* @static
|
|
|
7275 |
* @memberOf _
|
|
|
7276 |
* @category Function
|
|
|
7277 |
* @param {number} n The number of calls before `func` is invoked.
|
|
442
|
7278 |
* @param {Function} func The function to restrict.
|
|
|
7279 |
* @returns {Function} Returns the new restricted function.
|
|
|
7280 |
* @example
|
|
|
7281 |
*
|
|
|
7282 |
* var saves = ['profile', 'settings'];
|
|
|
7283 |
*
|
|
|
7284 |
* var done = _.after(saves.length, function() {
|
|
498
|
7285 |
* console.log('done saving!');
|
|
442
|
7286 |
* });
|
|
|
7287 |
*
|
|
|
7288 |
* _.forEach(saves, function(type) {
|
|
|
7289 |
* asyncSave({ 'type': type, 'complete': done });
|
|
|
7290 |
* });
|
|
498
|
7291 |
* // => logs 'done saving!' after the two async saves have completed
|
|
442
|
7292 |
*/
|
|
|
7293 |
function after(n, func) {
|
|
498
|
7294 |
if (typeof func != 'function') {
|
|
|
7295 |
if (typeof n == 'function') {
|
|
|
7296 |
var temp = n;
|
|
|
7297 |
n = func;
|
|
|
7298 |
func = temp;
|
|
|
7299 |
} else {
|
|
|
7300 |
throw new TypeError(FUNC_ERROR_TEXT);
|
|
|
7301 |
}
|
|
|
7302 |
}
|
|
|
7303 |
n = nativeIsFinite(n = +n) ? n : 0;
|
|
442
|
7304 |
return function() {
|
|
|
7305 |
if (--n < 1) {
|
|
|
7306 |
return func.apply(this, arguments);
|
|
|
7307 |
}
|
|
|
7308 |
};
|
|
|
7309 |
}
|
|
|
7310 |
|
|
|
7311 |
/**
|
|
498
|
7312 |
* Creates a function that accepts up to `n` arguments ignoring any
|
|
|
7313 |
* additional arguments.
|
|
|
7314 |
*
|
|
|
7315 |
* @static
|
|
|
7316 |
* @memberOf _
|
|
|
7317 |
* @category Function
|
|
|
7318 |
* @param {Function} func The function to cap arguments for.
|
|
|
7319 |
* @param {number} [n=func.length] The arity cap.
|
|
|
7320 |
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
|
|
|
7321 |
* @returns {Function} Returns the new function.
|
|
|
7322 |
* @example
|
|
|
7323 |
*
|
|
|
7324 |
* _.map(['6', '8', '10'], _.ary(parseInt, 1));
|
|
|
7325 |
* // => [6, 8, 10]
|
|
|
7326 |
*/
|
|
|
7327 |
function ary(func, n, guard) {
|
|
|
7328 |
if (guard && isIterateeCall(func, n, guard)) {
|
|
|
7329 |
n = undefined;
|
|
|
7330 |
}
|
|
|
7331 |
n = (func && n == null) ? func.length : nativeMax(+n || 0, 0);
|
|
|
7332 |
return createWrapper(func, ARY_FLAG, undefined, undefined, undefined, undefined, n);
|
|
|
7333 |
}
|
|
|
7334 |
|
|
|
7335 |
/**
|
|
|
7336 |
* Creates a function that invokes `func`, with the `this` binding and arguments
|
|
|
7337 |
* of the created function, while it's called less than `n` times. Subsequent
|
|
|
7338 |
* calls to the created function return the result of the last `func` invocation.
|
|
|
7339 |
*
|
|
|
7340 |
* @static
|
|
|
7341 |
* @memberOf _
|
|
|
7342 |
* @category Function
|
|
|
7343 |
* @param {number} n The number of calls at which `func` is no longer invoked.
|
|
|
7344 |
* @param {Function} func The function to restrict.
|
|
|
7345 |
* @returns {Function} Returns the new restricted function.
|
|
|
7346 |
* @example
|
|
|
7347 |
*
|
|
|
7348 |
* jQuery('#add').on('click', _.before(5, addContactToList));
|
|
|
7349 |
* // => allows adding up to 4 contacts to the list
|
|
|
7350 |
*/
|
|
|
7351 |
function before(n, func) {
|
|
|
7352 |
var result;
|
|
|
7353 |
if (typeof func != 'function') {
|
|
|
7354 |
if (typeof n == 'function') {
|
|
|
7355 |
var temp = n;
|
|
|
7356 |
n = func;
|
|
|
7357 |
func = temp;
|
|
|
7358 |
} else {
|
|
|
7359 |
throw new TypeError(FUNC_ERROR_TEXT);
|
|
|
7360 |
}
|
|
|
7361 |
}
|
|
|
7362 |
return function() {
|
|
|
7363 |
if (--n > 0) {
|
|
|
7364 |
result = func.apply(this, arguments);
|
|
|
7365 |
}
|
|
|
7366 |
if (n <= 1) {
|
|
|
7367 |
func = undefined;
|
|
|
7368 |
}
|
|
|
7369 |
return result;
|
|
|
7370 |
};
|
|
|
7371 |
}
|
|
|
7372 |
|
|
|
7373 |
/**
|
|
|
7374 |
* Creates a function that invokes `func` with the `this` binding of `thisArg`
|
|
|
7375 |
* and prepends any additional `_.bind` arguments to those provided to the
|
|
|
7376 |
* bound function.
|
|
|
7377 |
*
|
|
|
7378 |
* The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,
|
|
|
7379 |
* may be used as a placeholder for partially applied arguments.
|
|
|
7380 |
*
|
|
|
7381 |
* **Note:** Unlike native `Function#bind` this method does not set the "length"
|
|
|
7382 |
* property of bound functions.
|
|
|
7383 |
*
|
|
|
7384 |
* @static
|
|
|
7385 |
* @memberOf _
|
|
|
7386 |
* @category Function
|
|
442
|
7387 |
* @param {Function} func The function to bind.
|
|
498
|
7388 |
* @param {*} thisArg The `this` binding of `func`.
|
|
|
7389 |
* @param {...*} [partials] The arguments to be partially applied.
|
|
442
|
7390 |
* @returns {Function} Returns the new bound function.
|
|
|
7391 |
* @example
|
|
|
7392 |
*
|
|
498
|
7393 |
* var greet = function(greeting, punctuation) {
|
|
|
7394 |
* return greeting + ' ' + this.user + punctuation;
|
|
442
|
7395 |
* };
|
|
|
7396 |
*
|
|
498
|
7397 |
* var object = { 'user': 'fred' };
|
|
|
7398 |
*
|
|
|
7399 |
* var bound = _.bind(greet, object, 'hi');
|
|
|
7400 |
* bound('!');
|
|
|
7401 |
* // => 'hi fred!'
|
|
|
7402 |
*
|
|
|
7403 |
* // using placeholders
|
|
|
7404 |
* var bound = _.bind(greet, object, _, '!');
|
|
|
7405 |
* bound('hi');
|
|
|
7406 |
* // => 'hi fred!'
|
|
|
7407 |
*/
|
|
|
7408 |
var bind = restParam(function(func, thisArg, partials) {
|
|
|
7409 |
var bitmask = BIND_FLAG;
|
|
|
7410 |
if (partials.length) {
|
|
|
7411 |
var holders = replaceHolders(partials, bind.placeholder);
|
|
|
7412 |
bitmask |= PARTIAL_FLAG;
|
|
|
7413 |
}
|
|
|
7414 |
return createWrapper(func, bitmask, thisArg, partials, holders);
|
|
|
7415 |
});
|
|
442
|
7416 |
|
|
|
7417 |
/**
|
|
|
7418 |
* Binds methods of an object to the object itself, overwriting the existing
|
|
|
7419 |
* method. Method names may be specified as individual arguments or as arrays
|
|
498
|
7420 |
* of method names. If no method names are provided all enumerable function
|
|
|
7421 |
* properties, own and inherited, of `object` are bound.
|
|
|
7422 |
*
|
|
|
7423 |
* **Note:** This method does not set the "length" property of bound functions.
|
|
|
7424 |
*
|
|
|
7425 |
* @static
|
|
|
7426 |
* @memberOf _
|
|
|
7427 |
* @category Function
|
|
442
|
7428 |
* @param {Object} object The object to bind and assign the bound methods to.
|
|
498
|
7429 |
* @param {...(string|string[])} [methodNames] The object method names to bind,
|
|
|
7430 |
* specified as individual method names or arrays of method names.
|
|
442
|
7431 |
* @returns {Object} Returns `object`.
|
|
|
7432 |
* @example
|
|
|
7433 |
*
|
|
|
7434 |
* var view = {
|
|
|
7435 |
* 'label': 'docs',
|
|
498
|
7436 |
* 'onClick': function() {
|
|
|
7437 |
* console.log('clicked ' + this.label);
|
|
|
7438 |
* }
|
|
442
|
7439 |
* };
|
|
|
7440 |
*
|
|
|
7441 |
* _.bindAll(view);
|
|
|
7442 |
* jQuery('#docs').on('click', view.onClick);
|
|
498
|
7443 |
* // => logs 'clicked docs' when the element is clicked
|
|
|
7444 |
*/
|
|
|
7445 |
var bindAll = restParam(function(object, methodNames) {
|
|
|
7446 |
methodNames = methodNames.length ? baseFlatten(methodNames) : functions(object);
|
|
|
7447 |
|
|
|
7448 |
var index = -1,
|
|
|
7449 |
length = methodNames.length;
|
|
442
|
7450 |
|
|
|
7451 |
while (++index < length) {
|
|
498
|
7452 |
var key = methodNames[index];
|
|
|
7453 |
object[key] = createWrapper(object[key], BIND_FLAG, object);
|
|
442
|
7454 |
}
|
|
|
7455 |
return object;
|
|
498
|
7456 |
});
|
|
|
7457 |
|
|
|
7458 |
/**
|
|
|
7459 |
* Creates a function that invokes the method at `object[key]` and prepends
|
|
|
7460 |
* any additional `_.bindKey` arguments to those provided to the bound function.
|
|
|
7461 |
*
|
|
|
7462 |
* This method differs from `_.bind` by allowing bound functions to reference
|
|
|
7463 |
* methods that may be redefined or don't yet exist.
|
|
|
7464 |
* See [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)
|
|
|
7465 |
* for more details.
|
|
|
7466 |
*
|
|
|
7467 |
* The `_.bindKey.placeholder` value, which defaults to `_` in monolithic
|
|
|
7468 |
* builds, may be used as a placeholder for partially applied arguments.
|
|
|
7469 |
*
|
|
|
7470 |
* @static
|
|
|
7471 |
* @memberOf _
|
|
|
7472 |
* @category Function
|
|
442
|
7473 |
* @param {Object} object The object the method belongs to.
|
|
|
7474 |
* @param {string} key The key of the method.
|
|
498
|
7475 |
* @param {...*} [partials] The arguments to be partially applied.
|
|
442
|
7476 |
* @returns {Function} Returns the new bound function.
|
|
|
7477 |
* @example
|
|
|
7478 |
*
|
|
|
7479 |
* var object = {
|
|
498
|
7480 |
* 'user': 'fred',
|
|
|
7481 |
* 'greet': function(greeting, punctuation) {
|
|
|
7482 |
* return greeting + ' ' + this.user + punctuation;
|
|
442
|
7483 |
* }
|
|
|
7484 |
* };
|
|
|
7485 |
*
|
|
498
|
7486 |
* var bound = _.bindKey(object, 'greet', 'hi');
|
|
|
7487 |
* bound('!');
|
|
|
7488 |
* // => 'hi fred!'
|
|
|
7489 |
*
|
|
|
7490 |
* object.greet = function(greeting, punctuation) {
|
|
|
7491 |
* return greeting + 'ya ' + this.user + punctuation;
|
|
442
|
7492 |
* };
|
|
|
7493 |
*
|
|
498
|
7494 |
* bound('!');
|
|
|
7495 |
* // => 'hiya fred!'
|
|
|
7496 |
*
|
|
|
7497 |
* // using placeholders
|
|
|
7498 |
* var bound = _.bindKey(object, 'greet', _, '!');
|
|
|
7499 |
* bound('hi');
|
|
|
7500 |
* // => 'hiya fred!'
|
|
|
7501 |
*/
|
|
|
7502 |
var bindKey = restParam(function(object, key, partials) {
|
|
|
7503 |
var bitmask = BIND_FLAG | BIND_KEY_FLAG;
|
|
|
7504 |
if (partials.length) {
|
|
|
7505 |
var holders = replaceHolders(partials, bindKey.placeholder);
|
|
|
7506 |
bitmask |= PARTIAL_FLAG;
|
|
|
7507 |
}
|
|
|
7508 |
return createWrapper(key, bitmask, object, partials, holders);
|
|
|
7509 |
});
|
|
|
7510 |
|
|
|
7511 |
/**
|
|
|
7512 |
* Creates a function that accepts one or more arguments of `func` that when
|
|
|
7513 |
* called either invokes `func` returning its result, if all `func` arguments
|
|
442
|
7514 |
* have been provided, or returns a function that accepts one or more of the
|
|
498
|
7515 |
* remaining `func` arguments, and so on. The arity of `func` may be specified
|
|
442
|
7516 |
* if `func.length` is not sufficient.
|
|
|
7517 |
*
|
|
498
|
7518 |
* The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,
|
|
|
7519 |
* may be used as a placeholder for provided arguments.
|
|
|
7520 |
*
|
|
|
7521 |
* **Note:** This method does not set the "length" property of curried functions.
|
|
|
7522 |
*
|
|
|
7523 |
* @static
|
|
|
7524 |
* @memberOf _
|
|
|
7525 |
* @category Function
|
|
442
|
7526 |
* @param {Function} func The function to curry.
|
|
|
7527 |
* @param {number} [arity=func.length] The arity of `func`.
|
|
498
|
7528 |
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
|
|
442
|
7529 |
* @returns {Function} Returns the new curried function.
|
|
|
7530 |
* @example
|
|
|
7531 |
*
|
|
498
|
7532 |
* var abc = function(a, b, c) {
|
|
|
7533 |
* return [a, b, c];
|
|
|
7534 |
* };
|
|
|
7535 |
*
|
|
|
7536 |
* var curried = _.curry(abc);
|
|
442
|
7537 |
*
|
|
|
7538 |
* curried(1)(2)(3);
|
|
498
|
7539 |
* // => [1, 2, 3]
|
|
442
|
7540 |
*
|
|
|
7541 |
* curried(1, 2)(3);
|
|
498
|
7542 |
* // => [1, 2, 3]
|
|
442
|
7543 |
*
|
|
|
7544 |
* curried(1, 2, 3);
|
|
498
|
7545 |
* // => [1, 2, 3]
|
|
|
7546 |
*
|
|
|
7547 |
* // using placeholders
|
|
|
7548 |
* curried(1)(_, 3)(2);
|
|
|
7549 |
* // => [1, 2, 3]
|
|
|
7550 |
*/
|
|
|
7551 |
var curry = createCurry(CURRY_FLAG);
|
|
|
7552 |
|
|
|
7553 |
/**
|
|
|
7554 |
* This method is like `_.curry` except that arguments are applied to `func`
|
|
|
7555 |
* in the manner of `_.partialRight` instead of `_.partial`.
|
|
|
7556 |
*
|
|
|
7557 |
* The `_.curryRight.placeholder` value, which defaults to `_` in monolithic
|
|
|
7558 |
* builds, may be used as a placeholder for provided arguments.
|
|
|
7559 |
*
|
|
|
7560 |
* **Note:** This method does not set the "length" property of curried functions.
|
|
|
7561 |
*
|
|
|
7562 |
* @static
|
|
|
7563 |
* @memberOf _
|
|
|
7564 |
* @category Function
|
|
|
7565 |
* @param {Function} func The function to curry.
|
|
|
7566 |
* @param {number} [arity=func.length] The arity of `func`.
|
|
|
7567 |
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
|
|
|
7568 |
* @returns {Function} Returns the new curried function.
|
|
|
7569 |
* @example
|
|
|
7570 |
*
|
|
|
7571 |
* var abc = function(a, b, c) {
|
|
|
7572 |
* return [a, b, c];
|
|
|
7573 |
* };
|
|
|
7574 |
*
|
|
|
7575 |
* var curried = _.curryRight(abc);
|
|
|
7576 |
*
|
|
|
7577 |
* curried(3)(2)(1);
|
|
|
7578 |
* // => [1, 2, 3]
|
|
|
7579 |
*
|
|
|
7580 |
* curried(2, 3)(1);
|
|
|
7581 |
* // => [1, 2, 3]
|
|
|
7582 |
*
|
|
|
7583 |
* curried(1, 2, 3);
|
|
|
7584 |
* // => [1, 2, 3]
|
|
|
7585 |
*
|
|
|
7586 |
* // using placeholders
|
|
|
7587 |
* curried(3)(1, _)(2);
|
|
|
7588 |
* // => [1, 2, 3]
|
|
|
7589 |
*/
|
|
|
7590 |
var curryRight = createCurry(CURRY_RIGHT_FLAG);
|
|
|
7591 |
|
|
|
7592 |
/**
|
|
|
7593 |
* Creates a debounced function that delays invoking `func` until after `wait`
|
|
|
7594 |
* milliseconds have elapsed since the last time the debounced function was
|
|
|
7595 |
* invoked. The debounced function comes with a `cancel` method to cancel
|
|
|
7596 |
* delayed invocations. Provide an options object to indicate that `func`
|
|
|
7597 |
* should be invoked on the leading and/or trailing edge of the `wait` timeout.
|
|
|
7598 |
* Subsequent calls to the debounced function return the result of the last
|
|
|
7599 |
* `func` invocation.
|
|
|
7600 |
*
|
|
|
7601 |
* **Note:** If `leading` and `trailing` options are `true`, `func` is invoked
|
|
442
|
7602 |
* on the trailing edge of the timeout only if the the debounced function is
|
|
|
7603 |
* invoked more than once during the `wait` timeout.
|
|
|
7604 |
*
|
|
498
|
7605 |
* See [David Corbacho's article](http://drupalmotion.com/article/debounce-and-throttle-visual-explanation)
|
|
|
7606 |
* for details over the differences between `_.debounce` and `_.throttle`.
|
|
|
7607 |
*
|
|
|
7608 |
* @static
|
|
|
7609 |
* @memberOf _
|
|
|
7610 |
* @category Function
|
|
442
|
7611 |
* @param {Function} func The function to debounce.
|
|
498
|
7612 |
* @param {number} [wait=0] The number of milliseconds to delay.
|
|
442
|
7613 |
* @param {Object} [options] The options object.
|
|
498
|
7614 |
* @param {boolean} [options.leading=false] Specify invoking on the leading
|
|
|
7615 |
* edge of the timeout.
|
|
|
7616 |
* @param {number} [options.maxWait] The maximum time `func` is allowed to be
|
|
|
7617 |
* delayed before it's invoked.
|
|
|
7618 |
* @param {boolean} [options.trailing=true] Specify invoking on the trailing
|
|
|
7619 |
* edge of the timeout.
|
|
442
|
7620 |
* @returns {Function} Returns the new debounced function.
|
|
|
7621 |
* @example
|
|
|
7622 |
*
|
|
|
7623 |
* // avoid costly calculations while the window size is in flux
|
|
498
|
7624 |
* jQuery(window).on('resize', _.debounce(calculateLayout, 150));
|
|
|
7625 |
*
|
|
|
7626 |
* // invoke `sendMail` when the click event is fired, debouncing subsequent calls
|
|
442
|
7627 |
* jQuery('#postbox').on('click', _.debounce(sendMail, 300, {
|
|
|
7628 |
* 'leading': true,
|
|
|
7629 |
* 'trailing': false
|
|
498
|
7630 |
* }));
|
|
|
7631 |
*
|
|
|
7632 |
* // ensure `batchLog` is invoked once after 1 second of debounced calls
|
|
442
|
7633 |
* var source = new EventSource('/stream');
|
|
498
|
7634 |
* jQuery(source).on('message', _.debounce(batchLog, 250, {
|
|
442
|
7635 |
* 'maxWait': 1000
|
|
498
|
7636 |
* }));
|
|
|
7637 |
*
|
|
|
7638 |
* // cancel a debounced call
|
|
|
7639 |
* var todoChanges = _.debounce(batchLog, 1000);
|
|
|
7640 |
* Object.observe(models.todo, todoChanges);
|
|
|
7641 |
*
|
|
|
7642 |
* Object.observe(models, function(changes) {
|
|
|
7643 |
* if (_.find(changes, { 'user': 'todo', 'type': 'delete'})) {
|
|
|
7644 |
* todoChanges.cancel();
|
|
|
7645 |
* }
|
|
|
7646 |
* }, ['delete']);
|
|
|
7647 |
*
|
|
|
7648 |
* // ...at some point `models.todo` is changed
|
|
|
7649 |
* models.todo.completed = true;
|
|
|
7650 |
*
|
|
|
7651 |
* // ...before 1 second has passed `models.todo` is deleted
|
|
|
7652 |
* // which cancels the debounced `todoChanges` call
|
|
|
7653 |
* delete models.todo;
|
|
442
|
7654 |
*/
|
|
|
7655 |
function debounce(func, wait, options) {
|
|
|
7656 |
var args,
|
|
|
7657 |
maxTimeoutId,
|
|
|
7658 |
result,
|
|
|
7659 |
stamp,
|
|
|
7660 |
thisArg,
|
|
|
7661 |
timeoutId,
|
|
|
7662 |
trailingCall,
|
|
|
7663 |
lastCalled = 0,
|
|
|
7664 |
maxWait = false,
|
|
|
7665 |
trailing = true;
|
|
|
7666 |
|
|
498
|
7667 |
if (typeof func != 'function') {
|
|
|
7668 |
throw new TypeError(FUNC_ERROR_TEXT);
|
|
|
7669 |
}
|
|
|
7670 |
wait = wait < 0 ? 0 : (+wait || 0);
|
|
442
|
7671 |
if (options === true) {
|
|
|
7672 |
var leading = true;
|
|
|
7673 |
trailing = false;
|
|
|
7674 |
} else if (isObject(options)) {
|
|
498
|
7675 |
leading = !!options.leading;
|
|
|
7676 |
maxWait = 'maxWait' in options && nativeMax(+options.maxWait || 0, wait);
|
|
|
7677 |
trailing = 'trailing' in options ? !!options.trailing : trailing;
|
|
|
7678 |
}
|
|
|
7679 |
|
|
|
7680 |
function cancel() {
|
|
442
|
7681 |
if (timeoutId) {
|
|
|
7682 |
clearTimeout(timeoutId);
|
|
|
7683 |
}
|
|
498
|
7684 |
if (maxTimeoutId) {
|
|
|
7685 |
clearTimeout(maxTimeoutId);
|
|
|
7686 |
}
|
|
|
7687 |
lastCalled = 0;
|
|
442
|
7688 |
maxTimeoutId = timeoutId = trailingCall = undefined;
|
|
498
|
7689 |
}
|
|
|
7690 |
|
|
|
7691 |
function complete(isCalled, id) {
|
|
|
7692 |
if (id) {
|
|
|
7693 |
clearTimeout(id);
|
|
|
7694 |
}
|
|
|
7695 |
maxTimeoutId = timeoutId = trailingCall = undefined;
|
|
|
7696 |
if (isCalled) {
|
|
442
|
7697 |
lastCalled = now();
|
|
|
7698 |
result = func.apply(thisArg, args);
|
|
|
7699 |
if (!timeoutId && !maxTimeoutId) {
|
|
498
|
7700 |
args = thisArg = undefined;
|
|
442
|
7701 |
}
|
|
|
7702 |
}
|
|
498
|
7703 |
}
|
|
|
7704 |
|
|
|
7705 |
function delayed() {
|
|
|
7706 |
var remaining = wait - (now() - stamp);
|
|
|
7707 |
if (remaining <= 0 || remaining > wait) {
|
|
|
7708 |
complete(trailingCall, maxTimeoutId);
|
|
|
7709 |
} else {
|
|
|
7710 |
timeoutId = setTimeout(delayed, remaining);
|
|
|
7711 |
}
|
|
|
7712 |
}
|
|
|
7713 |
|
|
|
7714 |
function maxDelayed() {
|
|
|
7715 |
complete(trailing, timeoutId);
|
|
|
7716 |
}
|
|
|
7717 |
|
|
|
7718 |
function debounced() {
|
|
442
|
7719 |
args = arguments;
|
|
|
7720 |
stamp = now();
|
|
|
7721 |
thisArg = this;
|
|
|
7722 |
trailingCall = trailing && (timeoutId || !leading);
|
|
|
7723 |
|
|
|
7724 |
if (maxWait === false) {
|
|
|
7725 |
var leadingCall = leading && !timeoutId;
|
|
|
7726 |
} else {
|
|
|
7727 |
if (!maxTimeoutId && !leading) {
|
|
|
7728 |
lastCalled = stamp;
|
|
|
7729 |
}
|
|
|
7730 |
var remaining = maxWait - (stamp - lastCalled),
|
|
498
|
7731 |
isCalled = remaining <= 0 || remaining > maxWait;
|
|
442
|
7732 |
|
|
|
7733 |
if (isCalled) {
|
|
|
7734 |
if (maxTimeoutId) {
|
|
|
7735 |
maxTimeoutId = clearTimeout(maxTimeoutId);
|
|
|
7736 |
}
|
|
|
7737 |
lastCalled = stamp;
|
|
|
7738 |
result = func.apply(thisArg, args);
|
|
|
7739 |
}
|
|
|
7740 |
else if (!maxTimeoutId) {
|
|
|
7741 |
maxTimeoutId = setTimeout(maxDelayed, remaining);
|
|
|
7742 |
}
|
|
|
7743 |
}
|
|
|
7744 |
if (isCalled && timeoutId) {
|
|
|
7745 |
timeoutId = clearTimeout(timeoutId);
|
|
|
7746 |
}
|
|
|
7747 |
else if (!timeoutId && wait !== maxWait) {
|
|
|
7748 |
timeoutId = setTimeout(delayed, wait);
|
|
|
7749 |
}
|
|
|
7750 |
if (leadingCall) {
|
|
|
7751 |
isCalled = true;
|
|
|
7752 |
result = func.apply(thisArg, args);
|
|
|
7753 |
}
|
|
|
7754 |
if (isCalled && !timeoutId && !maxTimeoutId) {
|
|
498
|
7755 |
args = thisArg = undefined;
|
|
442
|
7756 |
}
|
|
|
7757 |
return result;
|
|
498
|
7758 |
}
|
|
|
7759 |
debounced.cancel = cancel;
|
|
|
7760 |
return debounced;
|
|
|
7761 |
}
|
|
|
7762 |
|
|
|
7763 |
/**
|
|
|
7764 |
* Defers invoking the `func` until the current call stack has cleared. Any
|
|
|
7765 |
* additional arguments are provided to `func` when it's invoked.
|
|
|
7766 |
*
|
|
|
7767 |
* @static
|
|
|
7768 |
* @memberOf _
|
|
|
7769 |
* @category Function
|
|
442
|
7770 |
* @param {Function} func The function to defer.
|
|
498
|
7771 |
* @param {...*} [args] The arguments to invoke the function with.
|
|
442
|
7772 |
* @returns {number} Returns the timer id.
|
|
|
7773 |
* @example
|
|
|
7774 |
*
|
|
498
|
7775 |
* _.defer(function(text) {
|
|
|
7776 |
* console.log(text);
|
|
|
7777 |
* }, 'deferred');
|
|
442
|
7778 |
* // logs 'deferred' after one or more milliseconds
|
|
|
7779 |
*/
|
|
498
|
7780 |
var defer = restParam(function(func, args) {
|
|
|
7781 |
return baseDelay(func, 1, args);
|
|
|
7782 |
});
|
|
|
7783 |
|
|
|
7784 |
/**
|
|
|
7785 |
* Invokes `func` after `wait` milliseconds. Any additional arguments are
|
|
|
7786 |
* provided to `func` when it's invoked.
|
|
|
7787 |
*
|
|
|
7788 |
* @static
|
|
|
7789 |
* @memberOf _
|
|
|
7790 |
* @category Function
|
|
442
|
7791 |
* @param {Function} func The function to delay.
|
|
498
|
7792 |
* @param {number} wait The number of milliseconds to delay invocation.
|
|
|
7793 |
* @param {...*} [args] The arguments to invoke the function with.
|
|
442
|
7794 |
* @returns {number} Returns the timer id.
|
|
|
7795 |
* @example
|
|
|
7796 |
*
|
|
498
|
7797 |
* _.delay(function(text) {
|
|
|
7798 |
* console.log(text);
|
|
|
7799 |
* }, 1000, 'later');
|
|
442
|
7800 |
* // => logs 'later' after one second
|
|
|
7801 |
*/
|
|
498
|
7802 |
var delay = restParam(function(func, wait, args) {
|
|
|
7803 |
return baseDelay(func, wait, args);
|
|
|
7804 |
});
|
|
|
7805 |
|
|
|
7806 |
/**
|
|
|
7807 |
* Creates a function that returns the result of invoking the provided
|
|
|
7808 |
* functions with the `this` binding of the created function, where each
|
|
|
7809 |
* successive invocation is supplied the return value of the previous.
|
|
|
7810 |
*
|
|
|
7811 |
* @static
|
|
|
7812 |
* @memberOf _
|
|
|
7813 |
* @category Function
|
|
|
7814 |
* @param {...Function} [funcs] Functions to invoke.
|
|
|
7815 |
* @returns {Function} Returns the new function.
|
|
|
7816 |
* @example
|
|
|
7817 |
*
|
|
|
7818 |
* function square(n) {
|
|
|
7819 |
* return n * n;
|
|
|
7820 |
* }
|
|
|
7821 |
*
|
|
|
7822 |
* var addSquare = _.flow(_.add, square);
|
|
|
7823 |
* addSquare(1, 2);
|
|
|
7824 |
* // => 9
|
|
|
7825 |
*/
|
|
|
7826 |
var flow = createFlow();
|
|
|
7827 |
|
|
|
7828 |
/**
|
|
|
7829 |
* This method is like `_.flow` except that it creates a function that
|
|
|
7830 |
* invokes the provided functions from right to left.
|
|
|
7831 |
*
|
|
|
7832 |
* @static
|
|
|
7833 |
* @memberOf _
|
|
|
7834 |
* @alias backflow, compose
|
|
|
7835 |
* @category Function
|
|
|
7836 |
* @param {...Function} [funcs] Functions to invoke.
|
|
|
7837 |
* @returns {Function} Returns the new function.
|
|
|
7838 |
* @example
|
|
|
7839 |
*
|
|
|
7840 |
* function square(n) {
|
|
|
7841 |
* return n * n;
|
|
|
7842 |
* }
|
|
|
7843 |
*
|
|
|
7844 |
* var addSquare = _.flowRight(square, _.add);
|
|
|
7845 |
* addSquare(1, 2);
|
|
|
7846 |
* // => 9
|
|
|
7847 |
*/
|
|
|
7848 |
var flowRight = createFlow(true);
|
|
442
|
7849 |
|
|
|
7850 |
/**
|
|
|
7851 |
* Creates a function that memoizes the result of `func`. If `resolver` is
|
|
498
|
7852 |
* provided it determines the cache key for storing the result based on the
|
|
|
7853 |
* arguments provided to the memoized function. By default, the first argument
|
|
|
7854 |
* provided to the memoized function is coerced to a string and used as the
|
|
|
7855 |
* cache key. The `func` is invoked with the `this` binding of the memoized
|
|
|
7856 |
* function.
|
|
|
7857 |
*
|
|
|
7858 |
* **Note:** The cache is exposed as the `cache` property on the memoized
|
|
|
7859 |
* function. Its creation may be customized by replacing the `_.memoize.Cache`
|
|
|
7860 |
* constructor with one whose instances implement the [`Map`](http://ecma-international.org/ecma-262/6.0/#sec-properties-of-the-map-prototype-object)
|
|
|
7861 |
* method interface of `get`, `has`, and `set`.
|
|
|
7862 |
*
|
|
|
7863 |
* @static
|
|
|
7864 |
* @memberOf _
|
|
|
7865 |
* @category Function
|
|
442
|
7866 |
* @param {Function} func The function to have its output memoized.
|
|
498
|
7867 |
* @param {Function} [resolver] The function to resolve the cache key.
|
|
442
|
7868 |
* @returns {Function} Returns the new memoizing function.
|
|
|
7869 |
* @example
|
|
|
7870 |
*
|
|
498
|
7871 |
* var upperCase = _.memoize(function(string) {
|
|
|
7872 |
* return string.toUpperCase();
|
|
442
|
7873 |
* });
|
|
|
7874 |
*
|
|
498
|
7875 |
* upperCase('fred');
|
|
|
7876 |
* // => 'FRED'
|
|
442
|
7877 |
*
|
|
|
7878 |
* // modifying the result cache
|
|
498
|
7879 |
* upperCase.cache.set('fred', 'BARNEY');
|
|
|
7880 |
* upperCase('fred');
|
|
|
7881 |
* // => 'BARNEY'
|
|
|
7882 |
*
|
|
|
7883 |
* // replacing `_.memoize.Cache`
|
|
|
7884 |
* var object = { 'user': 'fred' };
|
|
|
7885 |
* var other = { 'user': 'barney' };
|
|
|
7886 |
* var identity = _.memoize(_.identity);
|
|
|
7887 |
*
|
|
|
7888 |
* identity(object);
|
|
|
7889 |
* // => { 'user': 'fred' }
|
|
|
7890 |
* identity(other);
|
|
|
7891 |
* // => { 'user': 'fred' }
|
|
|
7892 |
*
|
|
|
7893 |
* _.memoize.Cache = WeakMap;
|
|
|
7894 |
* var identity = _.memoize(_.identity);
|
|
|
7895 |
*
|
|
|
7896 |
* identity(object);
|
|
|
7897 |
* // => { 'user': 'fred' }
|
|
|
7898 |
* identity(other);
|
|
|
7899 |
* // => { 'user': 'barney' }
|
|
442
|
7900 |
*/
|
|
|
7901 |
function memoize(func, resolver) {
|
|
498
|
7902 |
if (typeof func != 'function' || (resolver && typeof resolver != 'function')) {
|
|
|
7903 |
throw new TypeError(FUNC_ERROR_TEXT);
|
|
442
|
7904 |
}
|
|
|
7905 |
var memoized = function() {
|
|
498
|
7906 |
var args = arguments,
|
|
|
7907 |
key = resolver ? resolver.apply(this, args) : args[0],
|
|
|
7908 |
cache = memoized.cache;
|
|
|
7909 |
|
|
|
7910 |
if (cache.has(key)) {
|
|
|
7911 |
return cache.get(key);
|
|
|
7912 |
}
|
|
|
7913 |
var result = func.apply(this, args);
|
|
|
7914 |
memoized.cache = cache.set(key, result);
|
|
|
7915 |
return result;
|
|
|
7916 |
};
|
|
|
7917 |
memoized.cache = new memoize.Cache;
|
|
442
|
7918 |
return memoized;
|
|
|
7919 |
}
|
|
|
7920 |
|
|
|
7921 |
/**
|
|
498
|
7922 |
* Creates a function that runs each argument through a corresponding
|
|
|
7923 |
* transform function.
|
|
|
7924 |
*
|
|
|
7925 |
* @static
|
|
|
7926 |
* @memberOf _
|
|
|
7927 |
* @category Function
|
|
|
7928 |
* @param {Function} func The function to wrap.
|
|
|
7929 |
* @param {...(Function|Function[])} [transforms] The functions to transform
|
|
|
7930 |
* arguments, specified as individual functions or arrays of functions.
|
|
|
7931 |
* @returns {Function} Returns the new function.
|
|
|
7932 |
* @example
|
|
|
7933 |
*
|
|
|
7934 |
* function doubled(n) {
|
|
|
7935 |
* return n * 2;
|
|
|
7936 |
* }
|
|
|
7937 |
*
|
|
|
7938 |
* function square(n) {
|
|
|
7939 |
* return n * n;
|
|
|
7940 |
* }
|
|
|
7941 |
*
|
|
|
7942 |
* var modded = _.modArgs(function(x, y) {
|
|
|
7943 |
* return [x, y];
|
|
|
7944 |
* }, square, doubled);
|
|
|
7945 |
*
|
|
|
7946 |
* modded(1, 2);
|
|
|
7947 |
* // => [1, 4]
|
|
|
7948 |
*
|
|
|
7949 |
* modded(5, 10);
|
|
|
7950 |
* // => [25, 20]
|
|
|
7951 |
*/
|
|
|
7952 |
var modArgs = restParam(function(func, transforms) {
|
|
|
7953 |
transforms = baseFlatten(transforms);
|
|
|
7954 |
if (typeof func != 'function' || !arrayEvery(transforms, baseIsFunction)) {
|
|
|
7955 |
throw new TypeError(FUNC_ERROR_TEXT);
|
|
|
7956 |
}
|
|
|
7957 |
var length = transforms.length;
|
|
|
7958 |
return restParam(function(args) {
|
|
|
7959 |
var index = nativeMin(args.length, length);
|
|
|
7960 |
while (index--) {
|
|
|
7961 |
args[index] = transforms[index](args[index]);
|
|
|
7962 |
}
|
|
|
7963 |
return func.apply(this, args);
|
|
|
7964 |
});
|
|
|
7965 |
});
|
|
|
7966 |
|
|
|
7967 |
/**
|
|
|
7968 |
* Creates a function that negates the result of the predicate `func`. The
|
|
|
7969 |
* `func` predicate is invoked with the `this` binding and arguments of the
|
|
|
7970 |
* created function.
|
|
|
7971 |
*
|
|
|
7972 |
* @static
|
|
|
7973 |
* @memberOf _
|
|
|
7974 |
* @category Function
|
|
|
7975 |
* @param {Function} predicate The predicate to negate.
|
|
|
7976 |
* @returns {Function} Returns the new function.
|
|
|
7977 |
* @example
|
|
|
7978 |
*
|
|
|
7979 |
* function isEven(n) {
|
|
|
7980 |
* return n % 2 == 0;
|
|
|
7981 |
* }
|
|
|
7982 |
*
|
|
|
7983 |
* _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));
|
|
|
7984 |
* // => [1, 3, 5]
|
|
|
7985 |
*/
|
|
|
7986 |
function negate(predicate) {
|
|
|
7987 |
if (typeof predicate != 'function') {
|
|
|
7988 |
throw new TypeError(FUNC_ERROR_TEXT);
|
|
|
7989 |
}
|
|
|
7990 |
return function() {
|
|
|
7991 |
return !predicate.apply(this, arguments);
|
|
|
7992 |
};
|
|
|
7993 |
}
|
|
|
7994 |
|
|
|
7995 |
/**
|
|
|
7996 |
* Creates a function that is restricted to invoking `func` once. Repeat calls
|
|
|
7997 |
* to the function return the value of the first call. The `func` is invoked
|
|
|
7998 |
* with the `this` binding and arguments of the created function.
|
|
|
7999 |
*
|
|
|
8000 |
* @static
|
|
|
8001 |
* @memberOf _
|
|
|
8002 |
* @category Function
|
|
442
|
8003 |
* @param {Function} func The function to restrict.
|
|
|
8004 |
* @returns {Function} Returns the new restricted function.
|
|
|
8005 |
* @example
|
|
|
8006 |
*
|
|
|
8007 |
* var initialize = _.once(createApplication);
|
|
|
8008 |
* initialize();
|
|
|
8009 |
* initialize();
|
|
498
|
8010 |
* // `initialize` invokes `createApplication` once
|
|
442
|
8011 |
*/
|
|
|
8012 |
function once(func) {
|
|
498
|
8013 |
return before(2, func);
|
|
|
8014 |
}
|
|
|
8015 |
|
|
|
8016 |
/**
|
|
|
8017 |
* Creates a function that invokes `func` with `partial` arguments prepended
|
|
|
8018 |
* to those provided to the new function. This method is like `_.bind` except
|
|
|
8019 |
* it does **not** alter the `this` binding.
|
|
|
8020 |
*
|
|
|
8021 |
* The `_.partial.placeholder` value, which defaults to `_` in monolithic
|
|
|
8022 |
* builds, may be used as a placeholder for partially applied arguments.
|
|
|
8023 |
*
|
|
|
8024 |
* **Note:** This method does not set the "length" property of partially
|
|
|
8025 |
* applied functions.
|
|
|
8026 |
*
|
|
|
8027 |
* @static
|
|
|
8028 |
* @memberOf _
|
|
|
8029 |
* @category Function
|
|
442
|
8030 |
* @param {Function} func The function to partially apply arguments to.
|
|
498
|
8031 |
* @param {...*} [partials] The arguments to be partially applied.
|
|
442
|
8032 |
* @returns {Function} Returns the new partially applied function.
|
|
|
8033 |
* @example
|
|
|
8034 |
*
|
|
498
|
8035 |
* var greet = function(greeting, name) {
|
|
|
8036 |
* return greeting + ' ' + name;
|
|
|
8037 |
* };
|
|
|
8038 |
*
|
|
|
8039 |
* var sayHelloTo = _.partial(greet, 'hello');
|
|
|
8040 |
* sayHelloTo('fred');
|
|
|
8041 |
* // => 'hello fred'
|
|
|
8042 |
*
|
|
|
8043 |
* // using placeholders
|
|
|
8044 |
* var greetFred = _.partial(greet, _, 'fred');
|
|
|
8045 |
* greetFred('hi');
|
|
|
8046 |
* // => 'hi fred'
|
|
|
8047 |
*/
|
|
|
8048 |
var partial = createPartial(PARTIAL_FLAG);
|
|
|
8049 |
|
|
|
8050 |
/**
|
|
|
8051 |
* This method is like `_.partial` except that partially applied arguments
|
|
|
8052 |
* are appended to those provided to the new function.
|
|
|
8053 |
*
|
|
|
8054 |
* The `_.partialRight.placeholder` value, which defaults to `_` in monolithic
|
|
|
8055 |
* builds, may be used as a placeholder for partially applied arguments.
|
|
|
8056 |
*
|
|
|
8057 |
* **Note:** This method does not set the "length" property of partially
|
|
|
8058 |
* applied functions.
|
|
|
8059 |
*
|
|
|
8060 |
* @static
|
|
|
8061 |
* @memberOf _
|
|
|
8062 |
* @category Function
|
|
|
8063 |
* @param {Function} func The function to partially apply arguments to.
|
|
|
8064 |
* @param {...*} [partials] The arguments to be partially applied.
|
|
|
8065 |
* @returns {Function} Returns the new partially applied function.
|
|
|
8066 |
* @example
|
|
|
8067 |
*
|
|
|
8068 |
* var greet = function(greeting, name) {
|
|
|
8069 |
* return greeting + ' ' + name;
|
|
|
8070 |
* };
|
|
|
8071 |
*
|
|
|
8072 |
* var greetFred = _.partialRight(greet, 'fred');
|
|
|
8073 |
* greetFred('hi');
|
|
442
|
8074 |
* // => 'hi fred'
|
|
498
|
8075 |
*
|
|
|
8076 |
* // using placeholders
|
|
|
8077 |
* var sayHelloTo = _.partialRight(greet, 'hello', _);
|
|
|
8078 |
* sayHelloTo('fred');
|
|
|
8079 |
* // => 'hello fred'
|
|
|
8080 |
*/
|
|
|
8081 |
var partialRight = createPartial(PARTIAL_RIGHT_FLAG);
|
|
|
8082 |
|
|
|
8083 |
/**
|
|
|
8084 |
* Creates a function that invokes `func` with arguments arranged according
|
|
|
8085 |
* to the specified indexes where the argument value at the first index is
|
|
|
8086 |
* provided as the first argument, the argument value at the second index is
|
|
|
8087 |
* provided as the second argument, and so on.
|
|
|
8088 |
*
|
|
|
8089 |
* @static
|
|
|
8090 |
* @memberOf _
|
|
|
8091 |
* @category Function
|
|
|
8092 |
* @param {Function} func The function to rearrange arguments for.
|
|
|
8093 |
* @param {...(number|number[])} indexes The arranged argument indexes,
|
|
|
8094 |
* specified as individual indexes or arrays of indexes.
|
|
|
8095 |
* @returns {Function} Returns the new function.
|
|
|
8096 |
* @example
|
|
|
8097 |
*
|
|
|
8098 |
* var rearged = _.rearg(function(a, b, c) {
|
|
|
8099 |
* return [a, b, c];
|
|
|
8100 |
* }, 2, 0, 1);
|
|
|
8101 |
*
|
|
|
8102 |
* rearged('b', 'c', 'a')
|
|
|
8103 |
* // => ['a', 'b', 'c']
|
|
|
8104 |
*
|
|
|
8105 |
* var map = _.rearg(_.map, [1, 0]);
|
|
|
8106 |
* map(function(n) {
|
|
|
8107 |
* return n * 3;
|
|
|
8108 |
* }, [1, 2, 3]);
|
|
|
8109 |
* // => [3, 6, 9]
|
|
|
8110 |
*/
|
|
|
8111 |
var rearg = restParam(function(func, indexes) {
|
|
|
8112 |
return createWrapper(func, REARG_FLAG, undefined, undefined, undefined, baseFlatten(indexes));
|
|
|
8113 |
});
|
|
|
8114 |
|
|
|
8115 |
/**
|
|
|
8116 |
* Creates a function that invokes `func` with the `this` binding of the
|
|
|
8117 |
* created function and arguments from `start` and beyond provided as an array.
|
|
|
8118 |
*
|
|
|
8119 |
* **Note:** This method is based on the [rest parameter](https://developer.mozilla.org/Web/JavaScript/Reference/Functions/rest_parameters).
|
|
|
8120 |
*
|
|
|
8121 |
* @static
|
|
|
8122 |
* @memberOf _
|
|
|
8123 |
* @category Function
|
|
|
8124 |
* @param {Function} func The function to apply a rest parameter to.
|
|
|
8125 |
* @param {number} [start=func.length-1] The start position of the rest parameter.
|
|
|
8126 |
* @returns {Function} Returns the new function.
|
|
|
8127 |
* @example
|
|
|
8128 |
*
|
|
|
8129 |
* var say = _.restParam(function(what, names) {
|
|
|
8130 |
* return what + ' ' + _.initial(names).join(', ') +
|
|
|
8131 |
* (_.size(names) > 1 ? ', & ' : '') + _.last(names);
|
|
|
8132 |
* });
|
|
|
8133 |
*
|
|
|
8134 |
* say('hello', 'fred', 'barney', 'pebbles');
|
|
|
8135 |
* // => 'hello fred, barney, & pebbles'
|
|
|
8136 |
*/
|
|
|
8137 |
function restParam(func, start) {
|
|
|
8138 |
if (typeof func != 'function') {
|
|
|
8139 |
throw new TypeError(FUNC_ERROR_TEXT);
|
|
|
8140 |
}
|
|
|
8141 |
start = nativeMax(start === undefined ? (func.length - 1) : (+start || 0), 0);
|
|
|
8142 |
return function() {
|
|
|
8143 |
var args = arguments,
|
|
|
8144 |
index = -1,
|
|
|
8145 |
length = nativeMax(args.length - start, 0),
|
|
|
8146 |
rest = Array(length);
|
|
|
8147 |
|
|
|
8148 |
while (++index < length) {
|
|
|
8149 |
rest[index] = args[start + index];
|
|
|
8150 |
}
|
|
|
8151 |
switch (start) {
|
|
|
8152 |
case 0: return func.call(this, rest);
|
|
|
8153 |
case 1: return func.call(this, args[0], rest);
|
|
|
8154 |
case 2: return func.call(this, args[0], args[1], rest);
|
|
|
8155 |
}
|
|
|
8156 |
var otherArgs = Array(start + 1);
|
|
|
8157 |
index = -1;
|
|
|
8158 |
while (++index < start) {
|
|
|
8159 |
otherArgs[index] = args[index];
|
|
|
8160 |
}
|
|
|
8161 |
otherArgs[start] = rest;
|
|
|
8162 |
return func.apply(this, otherArgs);
|
|
|
8163 |
};
|
|
|
8164 |
}
|
|
|
8165 |
|
|
|
8166 |
/**
|
|
|
8167 |
* Creates a function that invokes `func` with the `this` binding of the created
|
|
|
8168 |
* function and an array of arguments much like [`Function#apply`](https://es5.github.io/#x15.3.4.3).
|
|
|
8169 |
*
|
|
|
8170 |
* **Note:** This method is based on the [spread operator](https://developer.mozilla.org/Web/JavaScript/Reference/Operators/Spread_operator).
|
|
|
8171 |
*
|
|
|
8172 |
* @static
|
|
|
8173 |
* @memberOf _
|
|
|
8174 |
* @category Function
|
|
|
8175 |
* @param {Function} func The function to spread arguments over.
|
|
|
8176 |
* @returns {Function} Returns the new function.
|
|
|
8177 |
* @example
|
|
|
8178 |
*
|
|
|
8179 |
* var say = _.spread(function(who, what) {
|
|
|
8180 |
* return who + ' says ' + what;
|
|
|
8181 |
* });
|
|
|
8182 |
*
|
|
|
8183 |
* say(['fred', 'hello']);
|
|
|
8184 |
* // => 'fred says hello'
|
|
|
8185 |
*
|
|
|
8186 |
* // with a Promise
|
|
|
8187 |
* var numbers = Promise.all([
|
|
|
8188 |
* Promise.resolve(40),
|
|
|
8189 |
* Promise.resolve(36)
|
|
|
8190 |
* ]);
|
|
|
8191 |
*
|
|
|
8192 |
* numbers.then(_.spread(function(x, y) {
|
|
|
8193 |
* return x + y;
|
|
|
8194 |
* }));
|
|
|
8195 |
* // => a Promise of 76
|
|
|
8196 |
*/
|
|
|
8197 |
function spread(func) {
|
|
|
8198 |
if (typeof func != 'function') {
|
|
|
8199 |
throw new TypeError(FUNC_ERROR_TEXT);
|
|
|
8200 |
}
|
|
|
8201 |
return function(array) {
|
|
|
8202 |
return func.apply(this, array);
|
|
|
8203 |
};
|
|
|
8204 |
}
|
|
|
8205 |
|
|
|
8206 |
/**
|
|
|
8207 |
* Creates a throttled function that only invokes `func` at most once per
|
|
|
8208 |
* every `wait` milliseconds. The throttled function comes with a `cancel`
|
|
|
8209 |
* method to cancel delayed invocations. Provide an options object to indicate
|
|
|
8210 |
* that `func` should be invoked on the leading and/or trailing edge of the
|
|
|
8211 |
* `wait` timeout. Subsequent calls to the throttled function return the
|
|
|
8212 |
* result of the last `func` call.
|
|
|
8213 |
*
|
|
|
8214 |
* **Note:** If `leading` and `trailing` options are `true`, `func` is invoked
|
|
442
|
8215 |
* on the trailing edge of the timeout only if the the throttled function is
|
|
|
8216 |
* invoked more than once during the `wait` timeout.
|
|
|
8217 |
*
|
|
498
|
8218 |
* See [David Corbacho's article](http://drupalmotion.com/article/debounce-and-throttle-visual-explanation)
|
|
|
8219 |
* for details over the differences between `_.throttle` and `_.debounce`.
|
|
|
8220 |
*
|
|
|
8221 |
* @static
|
|
|
8222 |
* @memberOf _
|
|
|
8223 |
* @category Function
|
|
442
|
8224 |
* @param {Function} func The function to throttle.
|
|
498
|
8225 |
* @param {number} [wait=0] The number of milliseconds to throttle invocations to.
|
|
442
|
8226 |
* @param {Object} [options] The options object.
|
|
498
|
8227 |
* @param {boolean} [options.leading=true] Specify invoking on the leading
|
|
|
8228 |
* edge of the timeout.
|
|
|
8229 |
* @param {boolean} [options.trailing=true] Specify invoking on the trailing
|
|
|
8230 |
* edge of the timeout.
|
|
442
|
8231 |
* @returns {Function} Returns the new throttled function.
|
|
|
8232 |
* @example
|
|
|
8233 |
*
|
|
|
8234 |
* // avoid excessively updating the position while scrolling
|
|
498
|
8235 |
* jQuery(window).on('scroll', _.throttle(updatePosition, 100));
|
|
|
8236 |
*
|
|
|
8237 |
* // invoke `renewToken` when the click event is fired, but not more than once every 5 minutes
|
|
442
|
8238 |
* jQuery('.interactive').on('click', _.throttle(renewToken, 300000, {
|
|
|
8239 |
* 'trailing': false
|
|
|
8240 |
* }));
|
|
498
|
8241 |
*
|
|
|
8242 |
* // cancel a trailing throttled call
|
|
|
8243 |
* jQuery(window).on('popstate', throttled.cancel);
|
|
442
|
8244 |
*/
|
|
|
8245 |
function throttle(func, wait, options) {
|
|
|
8246 |
var leading = true,
|
|
|
8247 |
trailing = true;
|
|
|
8248 |
|
|
498
|
8249 |
if (typeof func != 'function') {
|
|
|
8250 |
throw new TypeError(FUNC_ERROR_TEXT);
|
|
442
|
8251 |
}
|
|
|
8252 |
if (options === false) {
|
|
|
8253 |
leading = false;
|
|
|
8254 |
} else if (isObject(options)) {
|
|
498
|
8255 |
leading = 'leading' in options ? !!options.leading : leading;
|
|
|
8256 |
trailing = 'trailing' in options ? !!options.trailing : trailing;
|
|
|
8257 |
}
|
|
|
8258 |
return debounce(func, wait, { 'leading': leading, 'maxWait': +wait, 'trailing': trailing });
|
|
442
|
8259 |
}
|
|
|
8260 |
|
|
|
8261 |
/**
|
|
|
8262 |
* Creates a function that provides `value` to the wrapper function as its
|
|
498
|
8263 |
* first argument. Any additional arguments provided to the function are
|
|
|
8264 |
* appended to those provided to the wrapper function. The wrapper is invoked
|
|
|
8265 |
* with the `this` binding of the created function.
|
|
|
8266 |
*
|
|
|
8267 |
* @static
|
|
|
8268 |
* @memberOf _
|
|
|
8269 |
* @category Function
|
|
442
|
8270 |
* @param {*} value The value to wrap.
|
|
|
8271 |
* @param {Function} wrapper The wrapper function.
|
|
|
8272 |
* @returns {Function} Returns the new function.
|
|
|
8273 |
* @example
|
|
|
8274 |
*
|
|
|
8275 |
* var p = _.wrap(_.escape, function(func, text) {
|
|
|
8276 |
* return '<p>' + func(text) + '</p>';
|
|
|
8277 |
* });
|
|
|
8278 |
*
|
|
498
|
8279 |
* p('fred, barney, & pebbles');
|
|
|
8280 |
* // => '<p>fred, barney, & pebbles</p>'
|
|
442
|
8281 |
*/
|
|
|
8282 |
function wrap(value, wrapper) {
|
|
498
|
8283 |
wrapper = wrapper == null ? identity : wrapper;
|
|
|
8284 |
return createWrapper(wrapper, PARTIAL_FLAG, undefined, [value], []);
|
|
|
8285 |
}
|
|
|
8286 |
|
|
|
8287 |
/*------------------------------------------------------------------------*/
|
|
|
8288 |
|
|
|
8289 |
/**
|
|
|
8290 |
* Creates a clone of `value`. If `isDeep` is `true` nested objects are cloned,
|
|
|
8291 |
* otherwise they are assigned by reference. If `customizer` is provided it's
|
|
|
8292 |
* invoked to produce the cloned values. If `customizer` returns `undefined`
|
|
|
8293 |
* cloning is handled by the method instead. The `customizer` is bound to
|
|
|
8294 |
* `thisArg` and invoked with up to three argument; (value [, index|key, object]).
|
|
|
8295 |
*
|
|
|
8296 |
* **Note:** This method is loosely based on the
|
|
|
8297 |
* [structured clone algorithm](http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm).
|
|
|
8298 |
* The enumerable properties of `arguments` objects and objects created by
|
|
|
8299 |
* constructors other than `Object` are cloned to plain `Object` objects. An
|
|
|
8300 |
* empty object is returned for uncloneable values such as functions, DOM nodes,
|
|
|
8301 |
* Maps, Sets, and WeakMaps.
|
|
|
8302 |
*
|
|
|
8303 |
* @static
|
|
|
8304 |
* @memberOf _
|
|
|
8305 |
* @category Lang
|
|
|
8306 |
* @param {*} value The value to clone.
|
|
|
8307 |
* @param {boolean} [isDeep] Specify a deep clone.
|
|
|
8308 |
* @param {Function} [customizer] The function to customize cloning values.
|
|
|
8309 |
* @param {*} [thisArg] The `this` binding of `customizer`.
|
|
|
8310 |
* @returns {*} Returns the cloned value.
|
|
|
8311 |
* @example
|
|
|
8312 |
*
|
|
|
8313 |
* var users = [
|
|
|
8314 |
* { 'user': 'barney' },
|
|
|
8315 |
* { 'user': 'fred' }
|
|
|
8316 |
* ];
|
|
|
8317 |
*
|
|
|
8318 |
* var shallow = _.clone(users);
|
|
|
8319 |
* shallow[0] === users[0];
|
|
|
8320 |
* // => true
|
|
|
8321 |
*
|
|
|
8322 |
* var deep = _.clone(users, true);
|
|
|
8323 |
* deep[0] === users[0];
|
|
|
8324 |
* // => false
|
|
|
8325 |
*
|
|
|
8326 |
* // using a customizer callback
|
|
|
8327 |
* var el = _.clone(document.body, function(value) {
|
|
|
8328 |
* if (_.isElement(value)) {
|
|
|
8329 |
* return value.cloneNode(false);
|
|
|
8330 |
* }
|
|
|
8331 |
* });
|
|
|
8332 |
*
|
|
|
8333 |
* el === document.body
|
|
|
8334 |
* // => false
|
|
|
8335 |
* el.nodeName
|
|
|
8336 |
* // => BODY
|
|
|
8337 |
* el.childNodes.length;
|
|
|
8338 |
* // => 0
|
|
|
8339 |
*/
|
|
|
8340 |
function clone(value, isDeep, customizer, thisArg) {
|
|
|
8341 |
if (isDeep && typeof isDeep != 'boolean' && isIterateeCall(value, isDeep, customizer)) {
|
|
|
8342 |
isDeep = false;
|
|
|
8343 |
}
|
|
|
8344 |
else if (typeof isDeep == 'function') {
|
|
|
8345 |
thisArg = customizer;
|
|
|
8346 |
customizer = isDeep;
|
|
|
8347 |
isDeep = false;
|
|
|
8348 |
}
|
|
|
8349 |
return typeof customizer == 'function'
|
|
|
8350 |
? baseClone(value, isDeep, bindCallback(customizer, thisArg, 3))
|
|
|
8351 |
: baseClone(value, isDeep);
|
|
|
8352 |
}
|
|
|
8353 |
|
|
|
8354 |
/**
|
|
|
8355 |
* Creates a deep clone of `value`. If `customizer` is provided it's invoked
|
|
|
8356 |
* to produce the cloned values. If `customizer` returns `undefined` cloning
|
|
|
8357 |
* is handled by the method instead. The `customizer` is bound to `thisArg`
|
|
|
8358 |
* and invoked with up to three argument; (value [, index|key, object]).
|
|
|
8359 |
*
|
|
|
8360 |
* **Note:** This method is loosely based on the
|
|
|
8361 |
* [structured clone algorithm](http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm).
|
|
|
8362 |
* The enumerable properties of `arguments` objects and objects created by
|
|
|
8363 |
* constructors other than `Object` are cloned to plain `Object` objects. An
|
|
|
8364 |
* empty object is returned for uncloneable values such as functions, DOM nodes,
|
|
|
8365 |
* Maps, Sets, and WeakMaps.
|
|
|
8366 |
*
|
|
|
8367 |
* @static
|
|
|
8368 |
* @memberOf _
|
|
|
8369 |
* @category Lang
|
|
|
8370 |
* @param {*} value The value to deep clone.
|
|
|
8371 |
* @param {Function} [customizer] The function to customize cloning values.
|
|
|
8372 |
* @param {*} [thisArg] The `this` binding of `customizer`.
|
|
|
8373 |
* @returns {*} Returns the deep cloned value.
|
|
|
8374 |
* @example
|
|
|
8375 |
*
|
|
|
8376 |
* var users = [
|
|
|
8377 |
* { 'user': 'barney' },
|
|
|
8378 |
* { 'user': 'fred' }
|
|
|
8379 |
* ];
|
|
|
8380 |
*
|
|
|
8381 |
* var deep = _.cloneDeep(users);
|
|
|
8382 |
* deep[0] === users[0];
|
|
|
8383 |
* // => false
|
|
|
8384 |
*
|
|
|
8385 |
* // using a customizer callback
|
|
|
8386 |
* var el = _.cloneDeep(document.body, function(value) {
|
|
|
8387 |
* if (_.isElement(value)) {
|
|
|
8388 |
* return value.cloneNode(true);
|
|
|
8389 |
* }
|
|
|
8390 |
* });
|
|
|
8391 |
*
|
|
|
8392 |
* el === document.body
|
|
|
8393 |
* // => false
|
|
|
8394 |
* el.nodeName
|
|
|
8395 |
* // => BODY
|
|
|
8396 |
* el.childNodes.length;
|
|
|
8397 |
* // => 20
|
|
|
8398 |
*/
|
|
|
8399 |
function cloneDeep(value, customizer, thisArg) {
|
|
|
8400 |
return typeof customizer == 'function'
|
|
|
8401 |
? baseClone(value, true, bindCallback(customizer, thisArg, 3))
|
|
|
8402 |
: baseClone(value, true);
|
|
|
8403 |
}
|
|
|
8404 |
|
|
|
8405 |
/**
|
|
|
8406 |
* Checks if `value` is greater than `other`.
|
|
|
8407 |
*
|
|
|
8408 |
* @static
|
|
|
8409 |
* @memberOf _
|
|
|
8410 |
* @category Lang
|
|
|
8411 |
* @param {*} value The value to compare.
|
|
|
8412 |
* @param {*} other The other value to compare.
|
|
|
8413 |
* @returns {boolean} Returns `true` if `value` is greater than `other`, else `false`.
|
|
|
8414 |
* @example
|
|
|
8415 |
*
|
|
|
8416 |
* _.gt(3, 1);
|
|
|
8417 |
* // => true
|
|
|
8418 |
*
|
|
|
8419 |
* _.gt(3, 3);
|
|
|
8420 |
* // => false
|
|
|
8421 |
*
|
|
|
8422 |
* _.gt(1, 3);
|
|
|
8423 |
* // => false
|
|
|
8424 |
*/
|
|
|
8425 |
function gt(value, other) {
|
|
|
8426 |
return value > other;
|
|
|
8427 |
}
|
|
|
8428 |
|
|
|
8429 |
/**
|
|
|
8430 |
* Checks if `value` is greater than or equal to `other`.
|
|
|
8431 |
*
|
|
|
8432 |
* @static
|
|
|
8433 |
* @memberOf _
|
|
|
8434 |
* @category Lang
|
|
|
8435 |
* @param {*} value The value to compare.
|
|
|
8436 |
* @param {*} other The other value to compare.
|
|
|
8437 |
* @returns {boolean} Returns `true` if `value` is greater than or equal to `other`, else `false`.
|
|
|
8438 |
* @example
|
|
|
8439 |
*
|
|
|
8440 |
* _.gte(3, 1);
|
|
|
8441 |
* // => true
|
|
|
8442 |
*
|
|
|
8443 |
* _.gte(3, 3);
|
|
442
|
8444 |
* // => true
|
|
498
|
8445 |
*
|
|
|
8446 |
* _.gte(1, 3);
|
|
|
8447 |
* // => false
|
|
|
8448 |
*/
|
|
|
8449 |
function gte(value, other) {
|
|
|
8450 |
return value >= other;
|
|
|
8451 |
}
|
|
|
8452 |
|
|
|
8453 |
/**
|
|
|
8454 |
* Checks if `value` is classified as an `arguments` object.
|
|
|
8455 |
*
|
|
|
8456 |
* @static
|
|
|
8457 |
* @memberOf _
|
|
|
8458 |
* @category Lang
|
|
|
8459 |
* @param {*} value The value to check.
|
|
|
8460 |
* @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
|
|
|
8461 |
* @example
|
|
|
8462 |
*
|
|
|
8463 |
* _.isArguments(function() { return arguments; }());
|
|
|
8464 |
* // => true
|
|
|
8465 |
*
|
|
|
8466 |
* _.isArguments([1, 2, 3]);
|
|
|
8467 |
* // => false
|
|
|
8468 |
*/
|
|
|
8469 |
function isArguments(value) {
|
|
|
8470 |
return isObjectLike(value) && isArrayLike(value) &&
|
|
|
8471 |
hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee');
|
|
|
8472 |
}
|
|
|
8473 |
|
|
|
8474 |
/**
|
|
|
8475 |
* Checks if `value` is classified as an `Array` object.
|
|
|
8476 |
*
|
|
|
8477 |
* @static
|
|
|
8478 |
* @memberOf _
|
|
|
8479 |
* @category Lang
|
|
|
8480 |
* @param {*} value The value to check.
|
|
|
8481 |
* @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
|
|
|
8482 |
* @example
|
|
|
8483 |
*
|
|
|
8484 |
* _.isArray([1, 2, 3]);
|
|
|
8485 |
* // => true
|
|
|
8486 |
*
|
|
|
8487 |
* _.isArray(function() { return arguments; }());
|
|
|
8488 |
* // => false
|
|
|
8489 |
*/
|
|
|
8490 |
var isArray = nativeIsArray || function(value) {
|
|
|
8491 |
return isObjectLike(value) && isLength(value.length) && objToString.call(value) == arrayTag;
|
|
|
8492 |
};
|
|
|
8493 |
|
|
|
8494 |
/**
|
|
|
8495 |
* Checks if `value` is classified as a boolean primitive or object.
|
|
|
8496 |
*
|
|
|
8497 |
* @static
|
|
|
8498 |
* @memberOf _
|
|
|
8499 |
* @category Lang
|
|
|
8500 |
* @param {*} value The value to check.
|
|
|
8501 |
* @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
|
|
|
8502 |
* @example
|
|
|
8503 |
*
|
|
|
8504 |
* _.isBoolean(false);
|
|
|
8505 |
* // => true
|
|
|
8506 |
*
|
|
|
8507 |
* _.isBoolean(null);
|
|
|
8508 |
* // => false
|
|
|
8509 |
*/
|
|
|
8510 |
function isBoolean(value) {
|
|
|
8511 |
return value === true || value === false || (isObjectLike(value) && objToString.call(value) == boolTag);
|
|
|
8512 |
}
|
|
|
8513 |
|
|
|
8514 |
/**
|
|
|
8515 |
* Checks if `value` is classified as a `Date` object.
|
|
|
8516 |
*
|
|
|
8517 |
* @static
|
|
|
8518 |
* @memberOf _
|
|
|
8519 |
* @category Lang
|
|
|
8520 |
* @param {*} value The value to check.
|
|
|
8521 |
* @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
|
|
|
8522 |
* @example
|
|
|
8523 |
*
|
|
|
8524 |
* _.isDate(new Date);
|
|
|
8525 |
* // => true
|
|
|
8526 |
*
|
|
|
8527 |
* _.isDate('Mon April 23 2012');
|
|
|
8528 |
* // => false
|
|
|
8529 |
*/
|
|
|
8530 |
function isDate(value) {
|
|
|
8531 |
return isObjectLike(value) && objToString.call(value) == dateTag;
|
|
|
8532 |
}
|
|
|
8533 |
|
|
|
8534 |
/**
|
|
|
8535 |
* Checks if `value` is a DOM element.
|
|
|
8536 |
*
|
|
|
8537 |
* @static
|
|
|
8538 |
* @memberOf _
|
|
|
8539 |
* @category Lang
|
|
|
8540 |
* @param {*} value The value to check.
|
|
|
8541 |
* @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.
|
|
|
8542 |
* @example
|
|
|
8543 |
*
|
|
|
8544 |
* _.isElement(document.body);
|
|
|
8545 |
* // => true
|
|
|
8546 |
*
|
|
|
8547 |
* _.isElement('<body>');
|
|
|
8548 |
* // => false
|
|
|
8549 |
*/
|
|
|
8550 |
function isElement(value) {
|
|
|
8551 |
return !!value && value.nodeType === 1 && isObjectLike(value) && !isPlainObject(value);
|
|
|
8552 |
}
|
|
|
8553 |
|
|
|
8554 |
/**
|
|
|
8555 |
* Checks if `value` is empty. A value is considered empty unless it's an
|
|
|
8556 |
* `arguments` object, array, string, or jQuery-like collection with a length
|
|
|
8557 |
* greater than `0` or an object with own enumerable properties.
|
|
|
8558 |
*
|
|
|
8559 |
* @static
|
|
|
8560 |
* @memberOf _
|
|
|
8561 |
* @category Lang
|
|
|
8562 |
* @param {Array|Object|string} value The value to inspect.
|
|
|
8563 |
* @returns {boolean} Returns `true` if `value` is empty, else `false`.
|
|
|
8564 |
* @example
|
|
|
8565 |
*
|
|
|
8566 |
* _.isEmpty(null);
|
|
|
8567 |
* // => true
|
|
|
8568 |
*
|
|
|
8569 |
* _.isEmpty(true);
|
|
|
8570 |
* // => true
|
|
|
8571 |
*
|
|
|
8572 |
* _.isEmpty(1);
|
|
|
8573 |
* // => true
|
|
|
8574 |
*
|
|
|
8575 |
* _.isEmpty([1, 2, 3]);
|
|
|
8576 |
* // => false
|
|
|
8577 |
*
|
|
|
8578 |
* _.isEmpty({ 'a': 1 });
|
|
|
8579 |
* // => false
|
|
|
8580 |
*/
|
|
|
8581 |
function isEmpty(value) {
|
|
|
8582 |
if (value == null) {
|
|
|
8583 |
return true;
|
|
|
8584 |
}
|
|
|
8585 |
if (isArrayLike(value) && (isArray(value) || isString(value) || isArguments(value) ||
|
|
|
8586 |
(isObjectLike(value) && isFunction(value.splice)))) {
|
|
|
8587 |
return !value.length;
|
|
|
8588 |
}
|
|
|
8589 |
return !keys(value).length;
|
|
|
8590 |
}
|
|
|
8591 |
|
|
|
8592 |
/**
|
|
|
8593 |
* Performs a deep comparison between two values to determine if they are
|
|
|
8594 |
* equivalent. If `customizer` is provided it's invoked to compare values.
|
|
|
8595 |
* If `customizer` returns `undefined` comparisons are handled by the method
|
|
|
8596 |
* instead. The `customizer` is bound to `thisArg` and invoked with up to
|
|
|
8597 |
* three arguments: (value, other [, index|key]).
|
|
|
8598 |
*
|
|
|
8599 |
* **Note:** This method supports comparing arrays, booleans, `Date` objects,
|
|
|
8600 |
* numbers, `Object` objects, regexes, and strings. Objects are compared by
|
|
|
8601 |
* their own, not inherited, enumerable properties. Functions and DOM nodes
|
|
|
8602 |
* are **not** supported. Provide a customizer function to extend support
|
|
|
8603 |
* for comparing other values.
|
|
|
8604 |
*
|
|
|
8605 |
* @static
|
|
|
8606 |
* @memberOf _
|
|
|
8607 |
* @alias eq
|
|
|
8608 |
* @category Lang
|
|
|
8609 |
* @param {*} value The value to compare.
|
|
|
8610 |
* @param {*} other The other value to compare.
|
|
|
8611 |
* @param {Function} [customizer] The function to customize value comparisons.
|
|
|
8612 |
* @param {*} [thisArg] The `this` binding of `customizer`.
|
|
|
8613 |
* @returns {boolean} Returns `true` if the values are equivalent, else `false`.
|
|
|
8614 |
* @example
|
|
|
8615 |
*
|
|
|
8616 |
* var object = { 'user': 'fred' };
|
|
|
8617 |
* var other = { 'user': 'fred' };
|
|
|
8618 |
*
|
|
|
8619 |
* object == other;
|
|
|
8620 |
* // => false
|
|
|
8621 |
*
|
|
|
8622 |
* _.isEqual(object, other);
|
|
|
8623 |
* // => true
|
|
|
8624 |
*
|
|
|
8625 |
* // using a customizer callback
|
|
|
8626 |
* var array = ['hello', 'goodbye'];
|
|
|
8627 |
* var other = ['hi', 'goodbye'];
|
|
|
8628 |
*
|
|
|
8629 |
* _.isEqual(array, other, function(value, other) {
|
|
|
8630 |
* if (_.every([value, other], RegExp.prototype.test, /^h(?:i|ello)$/)) {
|
|
|
8631 |
* return true;
|
|
|
8632 |
* }
|
|
442
|
8633 |
* });
|
|
498
|
8634 |
* // => true
|
|
|
8635 |
*/
|
|
|
8636 |
function isEqual(value, other, customizer, thisArg) {
|
|
|
8637 |
customizer = typeof customizer == 'function' ? bindCallback(customizer, thisArg, 3) : undefined;
|
|
|
8638 |
var result = customizer ? customizer(value, other) : undefined;
|
|
|
8639 |
return result === undefined ? baseIsEqual(value, other, customizer) : !!result;
|
|
|
8640 |
}
|
|
|
8641 |
|
|
|
8642 |
/**
|
|
|
8643 |
* Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,
|
|
|
8644 |
* `SyntaxError`, `TypeError`, or `URIError` object.
|
|
|
8645 |
*
|
|
|
8646 |
* @static
|
|
|
8647 |
* @memberOf _
|
|
|
8648 |
* @category Lang
|
|
|
8649 |
* @param {*} value The value to check.
|
|
|
8650 |
* @returns {boolean} Returns `true` if `value` is an error object, else `false`.
|
|
|
8651 |
* @example
|
|
|
8652 |
*
|
|
|
8653 |
* _.isError(new Error);
|
|
|
8654 |
* // => true
|
|
|
8655 |
*
|
|
|
8656 |
* _.isError(Error);
|
|
|
8657 |
* // => false
|
|
|
8658 |
*/
|
|
|
8659 |
function isError(value) {
|
|
|
8660 |
return isObjectLike(value) && typeof value.message == 'string' && objToString.call(value) == errorTag;
|
|
|
8661 |
}
|
|
|
8662 |
|
|
|
8663 |
/**
|
|
|
8664 |
* Checks if `value` is a finite primitive number.
|
|
|
8665 |
*
|
|
|
8666 |
* **Note:** This method is based on [`Number.isFinite`](http://ecma-international.org/ecma-262/6.0/#sec-number.isfinite).
|
|
|
8667 |
*
|
|
|
8668 |
* @static
|
|
|
8669 |
* @memberOf _
|
|
|
8670 |
* @category Lang
|
|
|
8671 |
* @param {*} value The value to check.
|
|
|
8672 |
* @returns {boolean} Returns `true` if `value` is a finite number, else `false`.
|
|
|
8673 |
* @example
|
|
|
8674 |
*
|
|
|
8675 |
* _.isFinite(10);
|
|
|
8676 |
* // => true
|
|
|
8677 |
*
|
|
|
8678 |
* _.isFinite('10');
|
|
|
8679 |
* // => false
|
|
|
8680 |
*
|
|
|
8681 |
* _.isFinite(true);
|
|
|
8682 |
* // => false
|
|
|
8683 |
*
|
|
|
8684 |
* _.isFinite(Object(10));
|
|
|
8685 |
* // => false
|
|
|
8686 |
*
|
|
|
8687 |
* _.isFinite(Infinity);
|
|
|
8688 |
* // => false
|
|
|
8689 |
*/
|
|
|
8690 |
function isFinite(value) {
|
|
|
8691 |
return typeof value == 'number' && nativeIsFinite(value);
|
|
|
8692 |
}
|
|
|
8693 |
|
|
|
8694 |
/**
|
|
|
8695 |
* Checks if `value` is classified as a `Function` object.
|
|
|
8696 |
*
|
|
|
8697 |
* @static
|
|
|
8698 |
* @memberOf _
|
|
|
8699 |
* @category Lang
|
|
|
8700 |
* @param {*} value The value to check.
|
|
|
8701 |
* @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
|
|
|
8702 |
* @example
|
|
|
8703 |
*
|
|
|
8704 |
* _.isFunction(_);
|
|
|
8705 |
* // => true
|
|
|
8706 |
*
|
|
|
8707 |
* _.isFunction(/abc/);
|
|
|
8708 |
* // => false
|
|
|
8709 |
*/
|
|
|
8710 |
function isFunction(value) {
|
|
|
8711 |
// The use of `Object#toString` avoids issues with the `typeof` operator
|
|
|
8712 |
// in older versions of Chrome and Safari which return 'function' for regexes
|
|
|
8713 |
// and Safari 8 which returns 'object' for typed array constructors.
|
|
|
8714 |
return isObject(value) && objToString.call(value) == funcTag;
|
|
|
8715 |
}
|
|
|
8716 |
|
|
|
8717 |
/**
|
|
|
8718 |
* Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
|
|
|
8719 |
* (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
|
|
|
8720 |
*
|
|
|
8721 |
* @static
|
|
|
8722 |
* @memberOf _
|
|
|
8723 |
* @category Lang
|
|
|
8724 |
* @param {*} value The value to check.
|
|
|
8725 |
* @returns {boolean} Returns `true` if `value` is an object, else `false`.
|
|
|
8726 |
* @example
|
|
|
8727 |
*
|
|
|
8728 |
* _.isObject({});
|
|
|
8729 |
* // => true
|
|
|
8730 |
*
|
|
|
8731 |
* _.isObject([1, 2, 3]);
|
|
|
8732 |
* // => true
|
|
|
8733 |
*
|
|
|
8734 |
* _.isObject(1);
|
|
|
8735 |
* // => false
|
|
|
8736 |
*/
|
|
|
8737 |
function isObject(value) {
|
|
|
8738 |
// Avoid a V8 JIT bug in Chrome 19-20.
|
|
|
8739 |
// See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
|
|
|
8740 |
var type = typeof value;
|
|
|
8741 |
return !!value && (type == 'object' || type == 'function');
|
|
|
8742 |
}
|
|
|
8743 |
|
|
|
8744 |
/**
|
|
|
8745 |
* Performs a deep comparison between `object` and `source` to determine if
|
|
|
8746 |
* `object` contains equivalent property values. If `customizer` is provided
|
|
|
8747 |
* it's invoked to compare values. If `customizer` returns `undefined`
|
|
|
8748 |
* comparisons are handled by the method instead. The `customizer` is bound
|
|
|
8749 |
* to `thisArg` and invoked with three arguments: (value, other, index|key).
|
|
|
8750 |
*
|
|
|
8751 |
* **Note:** This method supports comparing properties of arrays, booleans,
|
|
|
8752 |
* `Date` objects, numbers, `Object` objects, regexes, and strings. Functions
|
|
|
8753 |
* and DOM nodes are **not** supported. Provide a customizer function to extend
|
|
|
8754 |
* support for comparing other values.
|
|
|
8755 |
*
|
|
|
8756 |
* @static
|
|
|
8757 |
* @memberOf _
|
|
|
8758 |
* @category Lang
|
|
|
8759 |
* @param {Object} object The object to inspect.
|
|
|
8760 |
* @param {Object} source The object of property values to match.
|
|
|
8761 |
* @param {Function} [customizer] The function to customize value comparisons.
|
|
|
8762 |
* @param {*} [thisArg] The `this` binding of `customizer`.
|
|
|
8763 |
* @returns {boolean} Returns `true` if `object` is a match, else `false`.
|
|
|
8764 |
* @example
|
|
|
8765 |
*
|
|
|
8766 |
* var object = { 'user': 'fred', 'age': 40 };
|
|
|
8767 |
*
|
|
|
8768 |
* _.isMatch(object, { 'age': 40 });
|
|
|
8769 |
* // => true
|
|
|
8770 |
*
|
|
|
8771 |
* _.isMatch(object, { 'age': 36 });
|
|
|
8772 |
* // => false
|
|
|
8773 |
*
|
|
|
8774 |
* // using a customizer callback
|
|
|
8775 |
* var object = { 'greeting': 'hello' };
|
|
|
8776 |
* var source = { 'greeting': 'hi' };
|
|
|
8777 |
*
|
|
|
8778 |
* _.isMatch(object, source, function(value, other) {
|
|
|
8779 |
* return _.every([value, other], RegExp.prototype.test, /^h(?:i|ello)$/) || undefined;
|
|
|
8780 |
* });
|
|
|
8781 |
* // => true
|
|
|
8782 |
*/
|
|
|
8783 |
function isMatch(object, source, customizer, thisArg) {
|
|
|
8784 |
customizer = typeof customizer == 'function' ? bindCallback(customizer, thisArg, 3) : undefined;
|
|
|
8785 |
return baseIsMatch(object, getMatchData(source), customizer);
|
|
|
8786 |
}
|
|
|
8787 |
|
|
|
8788 |
/**
|
|
|
8789 |
* Checks if `value` is `NaN`.
|
|
|
8790 |
*
|
|
|
8791 |
* **Note:** This method is not the same as [`isNaN`](https://es5.github.io/#x15.1.2.4)
|
|
|
8792 |
* which returns `true` for `undefined` and other non-numeric values.
|
|
|
8793 |
*
|
|
|
8794 |
* @static
|
|
|
8795 |
* @memberOf _
|
|
|
8796 |
* @category Lang
|
|
|
8797 |
* @param {*} value The value to check.
|
|
|
8798 |
* @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
|
|
|
8799 |
* @example
|
|
|
8800 |
*
|
|
|
8801 |
* _.isNaN(NaN);
|
|
|
8802 |
* // => true
|
|
|
8803 |
*
|
|
|
8804 |
* _.isNaN(new Number(NaN));
|
|
|
8805 |
* // => true
|
|
|
8806 |
*
|
|
|
8807 |
* isNaN(undefined);
|
|
|
8808 |
* // => true
|
|
|
8809 |
*
|
|
|
8810 |
* _.isNaN(undefined);
|
|
|
8811 |
* // => false
|
|
|
8812 |
*/
|
|
|
8813 |
function isNaN(value) {
|
|
|
8814 |
// An `NaN` primitive is the only value that is not equal to itself.
|
|
|
8815 |
// Perform the `toStringTag` check first to avoid errors with some host objects in IE.
|
|
|
8816 |
return isNumber(value) && value != +value;
|
|
|
8817 |
}
|
|
|
8818 |
|
|
|
8819 |
/**
|
|
|
8820 |
* Checks if `value` is a native function.
|
|
|
8821 |
*
|
|
|
8822 |
* @static
|
|
|
8823 |
* @memberOf _
|
|
|
8824 |
* @category Lang
|
|
|
8825 |
* @param {*} value The value to check.
|
|
|
8826 |
* @returns {boolean} Returns `true` if `value` is a native function, else `false`.
|
|
|
8827 |
* @example
|
|
|
8828 |
*
|
|
|
8829 |
* _.isNative(Array.prototype.push);
|
|
|
8830 |
* // => true
|
|
|
8831 |
*
|
|
|
8832 |
* _.isNative(_);
|
|
|
8833 |
* // => false
|
|
|
8834 |
*/
|
|
|
8835 |
function isNative(value) {
|
|
|
8836 |
if (value == null) {
|
|
|
8837 |
return false;
|
|
|
8838 |
}
|
|
|
8839 |
if (isFunction(value)) {
|
|
|
8840 |
return reIsNative.test(fnToString.call(value));
|
|
|
8841 |
}
|
|
|
8842 |
return isObjectLike(value) && reIsHostCtor.test(value);
|
|
|
8843 |
}
|
|
|
8844 |
|
|
|
8845 |
/**
|
|
|
8846 |
* Checks if `value` is `null`.
|
|
|
8847 |
*
|
|
|
8848 |
* @static
|
|
|
8849 |
* @memberOf _
|
|
|
8850 |
* @category Lang
|
|
|
8851 |
* @param {*} value The value to check.
|
|
|
8852 |
* @returns {boolean} Returns `true` if `value` is `null`, else `false`.
|
|
|
8853 |
* @example
|
|
|
8854 |
*
|
|
|
8855 |
* _.isNull(null);
|
|
442
|
8856 |
* // => true
|
|
498
|
8857 |
*
|
|
|
8858 |
* _.isNull(void 0);
|
|
|
8859 |
* // => false
|
|
|
8860 |
*/
|
|
|
8861 |
function isNull(value) {
|
|
|
8862 |
return value === null;
|
|
|
8863 |
}
|
|
|
8864 |
|
|
|
8865 |
/**
|
|
|
8866 |
* Checks if `value` is classified as a `Number` primitive or object.
|
|
|
8867 |
*
|
|
|
8868 |
* **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are classified
|
|
|
8869 |
* as numbers, use the `_.isFinite` method.
|
|
|
8870 |
*
|
|
|
8871 |
* @static
|
|
|
8872 |
* @memberOf _
|
|
|
8873 |
* @category Lang
|
|
|
8874 |
* @param {*} value The value to check.
|
|
|
8875 |
* @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
|
|
|
8876 |
* @example
|
|
|
8877 |
*
|
|
|
8878 |
* _.isNumber(8.4);
|
|
|
8879 |
* // => true
|
|
|
8880 |
*
|
|
|
8881 |
* _.isNumber(NaN);
|
|
|
8882 |
* // => true
|
|
|
8883 |
*
|
|
|
8884 |
* _.isNumber('8.4');
|
|
|
8885 |
* // => false
|
|
|
8886 |
*/
|
|
|
8887 |
function isNumber(value) {
|
|
|
8888 |
return typeof value == 'number' || (isObjectLike(value) && objToString.call(value) == numberTag);
|
|
|
8889 |
}
|
|
|
8890 |
|
|
|
8891 |
/**
|
|
|
8892 |
* Checks if `value` is a plain object, that is, an object created by the
|
|
|
8893 |
* `Object` constructor or one with a `[[Prototype]]` of `null`.
|
|
|
8894 |
*
|
|
|
8895 |
* **Note:** This method assumes objects created by the `Object` constructor
|
|
|
8896 |
* have no inherited enumerable properties.
|
|
|
8897 |
*
|
|
|
8898 |
* @static
|
|
|
8899 |
* @memberOf _
|
|
|
8900 |
* @category Lang
|
|
|
8901 |
* @param {*} value The value to check.
|
|
|
8902 |
* @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
|
|
|
8903 |
* @example
|
|
|
8904 |
*
|
|
|
8905 |
* function Foo() {
|
|
|
8906 |
* this.a = 1;
|
|
|
8907 |
* }
|
|
|
8908 |
*
|
|
|
8909 |
* _.isPlainObject(new Foo);
|
|
|
8910 |
* // => false
|
|
|
8911 |
*
|
|
|
8912 |
* _.isPlainObject([1, 2, 3]);
|
|
|
8913 |
* // => false
|
|
|
8914 |
*
|
|
|
8915 |
* _.isPlainObject({ 'x': 0, 'y': 0 });
|
|
|
8916 |
* // => true
|
|
|
8917 |
*
|
|
|
8918 |
* _.isPlainObject(Object.create(null));
|
|
|
8919 |
* // => true
|
|
|
8920 |
*/
|
|
|
8921 |
function isPlainObject(value) {
|
|
|
8922 |
var Ctor;
|
|
|
8923 |
|
|
|
8924 |
// Exit early for non `Object` objects.
|
|
|
8925 |
if (!(isObjectLike(value) && objToString.call(value) == objectTag && !isArguments(value)) ||
|
|
|
8926 |
(!hasOwnProperty.call(value, 'constructor') && (Ctor = value.constructor, typeof Ctor == 'function' && !(Ctor instanceof Ctor)))) {
|
|
|
8927 |
return false;
|
|
|
8928 |
}
|
|
|
8929 |
// IE < 9 iterates inherited properties before own properties. If the first
|
|
|
8930 |
// iterated property is an object's own property then there are no inherited
|
|
|
8931 |
// enumerable properties.
|
|
|
8932 |
var result;
|
|
|
8933 |
// In most environments an object's own properties are iterated before
|
|
|
8934 |
// its inherited properties. If the last iterated property is an object's
|
|
|
8935 |
// own property then there are no inherited enumerable properties.
|
|
|
8936 |
baseForIn(value, function(subValue, key) {
|
|
|
8937 |
result = key;
|
|
|
8938 |
});
|
|
|
8939 |
return result === undefined || hasOwnProperty.call(value, result);
|
|
|
8940 |
}
|
|
|
8941 |
|
|
|
8942 |
/**
|
|
|
8943 |
* Checks if `value` is classified as a `RegExp` object.
|
|
|
8944 |
*
|
|
|
8945 |
* @static
|
|
|
8946 |
* @memberOf _
|
|
|
8947 |
* @category Lang
|
|
|
8948 |
* @param {*} value The value to check.
|
|
|
8949 |
* @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
|
|
|
8950 |
* @example
|
|
|
8951 |
*
|
|
|
8952 |
* _.isRegExp(/abc/);
|
|
|
8953 |
* // => true
|
|
|
8954 |
*
|
|
|
8955 |
* _.isRegExp('/abc/');
|
|
|
8956 |
* // => false
|
|
|
8957 |
*/
|
|
|
8958 |
function isRegExp(value) {
|
|
|
8959 |
return isObject(value) && objToString.call(value) == regexpTag;
|
|
|
8960 |
}
|
|
|
8961 |
|
|
|
8962 |
/**
|
|
|
8963 |
* Checks if `value` is classified as a `String` primitive or object.
|
|
|
8964 |
*
|
|
|
8965 |
* @static
|
|
|
8966 |
* @memberOf _
|
|
|
8967 |
* @category Lang
|
|
|
8968 |
* @param {*} value The value to check.
|
|
|
8969 |
* @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
|
|
|
8970 |
* @example
|
|
|
8971 |
*
|
|
|
8972 |
* _.isString('abc');
|
|
|
8973 |
* // => true
|
|
|
8974 |
*
|
|
|
8975 |
* _.isString(1);
|
|
|
8976 |
* // => false
|
|
|
8977 |
*/
|
|
|
8978 |
function isString(value) {
|
|
|
8979 |
return typeof value == 'string' || (isObjectLike(value) && objToString.call(value) == stringTag);
|
|
|
8980 |
}
|
|
|
8981 |
|
|
|
8982 |
/**
|
|
|
8983 |
* Checks if `value` is classified as a typed array.
|
|
|
8984 |
*
|
|
|
8985 |
* @static
|
|
|
8986 |
* @memberOf _
|
|
|
8987 |
* @category Lang
|
|
|
8988 |
* @param {*} value The value to check.
|
|
|
8989 |
* @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
|
|
|
8990 |
* @example
|
|
|
8991 |
*
|
|
|
8992 |
* _.isTypedArray(new Uint8Array);
|
|
|
8993 |
* // => true
|
|
|
8994 |
*
|
|
|
8995 |
* _.isTypedArray([]);
|
|
|
8996 |
* // => false
|
|
|
8997 |
*/
|
|
|
8998 |
function isTypedArray(value) {
|
|
|
8999 |
return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[objToString.call(value)];
|
|
|
9000 |
}
|
|
|
9001 |
|
|
|
9002 |
/**
|
|
|
9003 |
* Checks if `value` is `undefined`.
|
|
|
9004 |
*
|
|
|
9005 |
* @static
|
|
|
9006 |
* @memberOf _
|
|
|
9007 |
* @category Lang
|
|
|
9008 |
* @param {*} value The value to check.
|
|
|
9009 |
* @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.
|
|
|
9010 |
* @example
|
|
|
9011 |
*
|
|
|
9012 |
* _.isUndefined(void 0);
|
|
|
9013 |
* // => true
|
|
|
9014 |
*
|
|
|
9015 |
* _.isUndefined(null);
|
|
|
9016 |
* // => false
|
|
|
9017 |
*/
|
|
|
9018 |
function isUndefined(value) {
|
|
|
9019 |
return value === undefined;
|
|
|
9020 |
}
|
|
|
9021 |
|
|
|
9022 |
/**
|
|
|
9023 |
* Checks if `value` is less than `other`.
|
|
|
9024 |
*
|
|
|
9025 |
* @static
|
|
|
9026 |
* @memberOf _
|
|
|
9027 |
* @category Lang
|
|
|
9028 |
* @param {*} value The value to compare.
|
|
|
9029 |
* @param {*} other The other value to compare.
|
|
|
9030 |
* @returns {boolean} Returns `true` if `value` is less than `other`, else `false`.
|
|
|
9031 |
* @example
|
|
|
9032 |
*
|
|
|
9033 |
* _.lt(1, 3);
|
|
|
9034 |
* // => true
|
|
|
9035 |
*
|
|
|
9036 |
* _.lt(3, 3);
|
|
|
9037 |
* // => false
|
|
|
9038 |
*
|
|
|
9039 |
* _.lt(3, 1);
|
|
|
9040 |
* // => false
|
|
|
9041 |
*/
|
|
|
9042 |
function lt(value, other) {
|
|
|
9043 |
return value < other;
|
|
|
9044 |
}
|
|
|
9045 |
|
|
|
9046 |
/**
|
|
|
9047 |
* Checks if `value` is less than or equal to `other`.
|
|
|
9048 |
*
|
|
|
9049 |
* @static
|
|
|
9050 |
* @memberOf _
|
|
|
9051 |
* @category Lang
|
|
|
9052 |
* @param {*} value The value to compare.
|
|
|
9053 |
* @param {*} other The other value to compare.
|
|
|
9054 |
* @returns {boolean} Returns `true` if `value` is less than or equal to `other`, else `false`.
|
|
|
9055 |
* @example
|
|
|
9056 |
*
|
|
|
9057 |
* _.lte(1, 3);
|
|
|
9058 |
* // => true
|
|
|
9059 |
*
|
|
|
9060 |
* _.lte(3, 3);
|
|
|
9061 |
* // => true
|
|
|
9062 |
*
|
|
|
9063 |
* _.lte(3, 1);
|
|
|
9064 |
* // => false
|
|
|
9065 |
*/
|
|
|
9066 |
function lte(value, other) {
|
|
|
9067 |
return value <= other;
|
|
|
9068 |
}
|
|
|
9069 |
|
|
|
9070 |
/**
|
|
|
9071 |
* Converts `value` to an array.
|
|
|
9072 |
*
|
|
|
9073 |
* @static
|
|
|
9074 |
* @memberOf _
|
|
|
9075 |
* @category Lang
|
|
|
9076 |
* @param {*} value The value to convert.
|
|
|
9077 |
* @returns {Array} Returns the converted array.
|
|
|
9078 |
* @example
|
|
|
9079 |
*
|
|
|
9080 |
* (function() {
|
|
|
9081 |
* return _.toArray(arguments).slice(1);
|
|
|
9082 |
* }(1, 2, 3));
|
|
|
9083 |
* // => [2, 3]
|
|
|
9084 |
*/
|
|
|
9085 |
function toArray(value) {
|
|
|
9086 |
var length = value ? getLength(value) : 0;
|
|
|
9087 |
if (!isLength(length)) {
|
|
|
9088 |
return values(value);
|
|
|
9089 |
}
|
|
|
9090 |
if (!length) {
|
|
|
9091 |
return [];
|
|
|
9092 |
}
|
|
|
9093 |
return arrayCopy(value);
|
|
|
9094 |
}
|
|
|
9095 |
|
|
|
9096 |
/**
|
|
|
9097 |
* Converts `value` to a plain object flattening inherited enumerable
|
|
|
9098 |
* properties of `value` to own properties of the plain object.
|
|
|
9099 |
*
|
|
|
9100 |
* @static
|
|
|
9101 |
* @memberOf _
|
|
|
9102 |
* @category Lang
|
|
|
9103 |
* @param {*} value The value to convert.
|
|
|
9104 |
* @returns {Object} Returns the converted plain object.
|
|
|
9105 |
* @example
|
|
|
9106 |
*
|
|
|
9107 |
* function Foo() {
|
|
|
9108 |
* this.b = 2;
|
|
442
|
9109 |
* }
|
|
|
9110 |
*
|
|
498
|
9111 |
* Foo.prototype.c = 3;
|
|
|
9112 |
*
|
|
|
9113 |
* _.assign({ 'a': 1 }, new Foo);
|
|
|
9114 |
* // => { 'a': 1, 'b': 2 }
|
|
|
9115 |
*
|
|
|
9116 |
* _.assign({ 'a': 1 }, _.toPlainObject(new Foo));
|
|
|
9117 |
* // => { 'a': 1, 'b': 2, 'c': 3 }
|
|
|
9118 |
*/
|
|
|
9119 |
function toPlainObject(value) {
|
|
|
9120 |
return baseCopy(value, keysIn(value));
|
|
|
9121 |
}
|
|
|
9122 |
|
|
|
9123 |
/*------------------------------------------------------------------------*/
|
|
|
9124 |
|
|
|
9125 |
/**
|
|
|
9126 |
* Recursively merges own enumerable properties of the source object(s), that
|
|
|
9127 |
* don't resolve to `undefined` into the destination object. Subsequent sources
|
|
|
9128 |
* overwrite property assignments of previous sources. If `customizer` is
|
|
|
9129 |
* provided it's invoked to produce the merged values of the destination and
|
|
|
9130 |
* source properties. If `customizer` returns `undefined` merging is handled
|
|
|
9131 |
* by the method instead. The `customizer` is bound to `thisArg` and invoked
|
|
|
9132 |
* with five arguments: (objectValue, sourceValue, key, object, source).
|
|
|
9133 |
*
|
|
|
9134 |
* @static
|
|
|
9135 |
* @memberOf _
|
|
|
9136 |
* @category Object
|
|
|
9137 |
* @param {Object} object The destination object.
|
|
|
9138 |
* @param {...Object} [sources] The source objects.
|
|
|
9139 |
* @param {Function} [customizer] The function to customize assigned values.
|
|
|
9140 |
* @param {*} [thisArg] The `this` binding of `customizer`.
|
|
|
9141 |
* @returns {Object} Returns `object`.
|
|
|
9142 |
* @example
|
|
|
9143 |
*
|
|
|
9144 |
* var users = {
|
|
|
9145 |
* 'data': [{ 'user': 'barney' }, { 'user': 'fred' }]
|
|
|
9146 |
* };
|
|
|
9147 |
*
|
|
|
9148 |
* var ages = {
|
|
|
9149 |
* 'data': [{ 'age': 36 }, { 'age': 40 }]
|
|
|
9150 |
* };
|
|
|
9151 |
*
|
|
|
9152 |
* _.merge(users, ages);
|
|
|
9153 |
* // => { 'data': [{ 'user': 'barney', 'age': 36 }, { 'user': 'fred', 'age': 40 }] }
|
|
|
9154 |
*
|
|
|
9155 |
* // using a customizer callback
|
|
|
9156 |
* var object = {
|
|
|
9157 |
* 'fruits': ['apple'],
|
|
|
9158 |
* 'vegetables': ['beet']
|
|
|
9159 |
* };
|
|
|
9160 |
*
|
|
|
9161 |
* var other = {
|
|
|
9162 |
* 'fruits': ['banana'],
|
|
|
9163 |
* 'vegetables': ['carrot']
|
|
|
9164 |
* };
|
|
|
9165 |
*
|
|
|
9166 |
* _.merge(object, other, function(a, b) {
|
|
|
9167 |
* if (_.isArray(a)) {
|
|
|
9168 |
* return a.concat(b);
|
|
|
9169 |
* }
|
|
|
9170 |
* });
|
|
|
9171 |
* // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot'] }
|
|
|
9172 |
*/
|
|
|
9173 |
var merge = createAssigner(baseMerge);
|
|
|
9174 |
|
|
|
9175 |
/**
|
|
|
9176 |
* Assigns own enumerable properties of source object(s) to the destination
|
|
|
9177 |
* object. Subsequent sources overwrite property assignments of previous sources.
|
|
|
9178 |
* If `customizer` is provided it's invoked to produce the assigned values.
|
|
|
9179 |
* The `customizer` is bound to `thisArg` and invoked with five arguments:
|
|
|
9180 |
* (objectValue, sourceValue, key, object, source).
|
|
|
9181 |
*
|
|
|
9182 |
* **Note:** This method mutates `object` and is based on
|
|
|
9183 |
* [`Object.assign`](http://ecma-international.org/ecma-262/6.0/#sec-object.assign).
|
|
|
9184 |
*
|
|
|
9185 |
* @static
|
|
|
9186 |
* @memberOf _
|
|
|
9187 |
* @alias extend
|
|
|
9188 |
* @category Object
|
|
|
9189 |
* @param {Object} object The destination object.
|
|
|
9190 |
* @param {...Object} [sources] The source objects.
|
|
|
9191 |
* @param {Function} [customizer] The function to customize assigned values.
|
|
|
9192 |
* @param {*} [thisArg] The `this` binding of `customizer`.
|
|
|
9193 |
* @returns {Object} Returns `object`.
|
|
|
9194 |
* @example
|
|
|
9195 |
*
|
|
|
9196 |
* _.assign({ 'user': 'barney' }, { 'age': 40 }, { 'user': 'fred' });
|
|
|
9197 |
* // => { 'user': 'fred', 'age': 40 }
|
|
|
9198 |
*
|
|
|
9199 |
* // using a customizer callback
|
|
|
9200 |
* var defaults = _.partialRight(_.assign, function(value, other) {
|
|
|
9201 |
* return _.isUndefined(value) ? other : value;
|
|
|
9202 |
* });
|
|
|
9203 |
*
|
|
|
9204 |
* defaults({ 'user': 'barney' }, { 'age': 36 }, { 'user': 'fred' });
|
|
|
9205 |
* // => { 'user': 'barney', 'age': 36 }
|
|
|
9206 |
*/
|
|
|
9207 |
var assign = createAssigner(function(object, source, customizer) {
|
|
|
9208 |
return customizer
|
|
|
9209 |
? assignWith(object, source, customizer)
|
|
|
9210 |
: baseAssign(object, source);
|
|
|
9211 |
});
|
|
|
9212 |
|
|
|
9213 |
/**
|
|
|
9214 |
* Creates an object that inherits from the given `prototype` object. If a
|
|
|
9215 |
* `properties` object is provided its own enumerable properties are assigned
|
|
|
9216 |
* to the created object.
|
|
|
9217 |
*
|
|
|
9218 |
* @static
|
|
|
9219 |
* @memberOf _
|
|
|
9220 |
* @category Object
|
|
|
9221 |
* @param {Object} prototype The object to inherit from.
|
|
|
9222 |
* @param {Object} [properties] The properties to assign to the object.
|
|
|
9223 |
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
|
|
|
9224 |
* @returns {Object} Returns the new object.
|
|
|
9225 |
* @example
|
|
|
9226 |
*
|
|
|
9227 |
* function Shape() {
|
|
|
9228 |
* this.x = 0;
|
|
|
9229 |
* this.y = 0;
|
|
|
9230 |
* }
|
|
|
9231 |
*
|
|
|
9232 |
* function Circle() {
|
|
|
9233 |
* Shape.call(this);
|
|
|
9234 |
* }
|
|
|
9235 |
*
|
|
|
9236 |
* Circle.prototype = _.create(Shape.prototype, {
|
|
|
9237 |
* 'constructor': Circle
|
|
|
9238 |
* });
|
|
|
9239 |
*
|
|
|
9240 |
* var circle = new Circle;
|
|
|
9241 |
* circle instanceof Circle;
|
|
|
9242 |
* // => true
|
|
|
9243 |
*
|
|
|
9244 |
* circle instanceof Shape;
|
|
|
9245 |
* // => true
|
|
|
9246 |
*/
|
|
|
9247 |
function create(prototype, properties, guard) {
|
|
|
9248 |
var result = baseCreate(prototype);
|
|
|
9249 |
if (guard && isIterateeCall(prototype, properties, guard)) {
|
|
|
9250 |
properties = undefined;
|
|
|
9251 |
}
|
|
|
9252 |
return properties ? baseAssign(result, properties) : result;
|
|
|
9253 |
}
|
|
|
9254 |
|
|
|
9255 |
/**
|
|
|
9256 |
* Assigns own enumerable properties of source object(s) to the destination
|
|
|
9257 |
* object for all destination properties that resolve to `undefined`. Once a
|
|
|
9258 |
* property is set, additional values of the same property are ignored.
|
|
|
9259 |
*
|
|
|
9260 |
* **Note:** This method mutates `object`.
|
|
|
9261 |
*
|
|
|
9262 |
* @static
|
|
|
9263 |
* @memberOf _
|
|
|
9264 |
* @category Object
|
|
|
9265 |
* @param {Object} object The destination object.
|
|
|
9266 |
* @param {...Object} [sources] The source objects.
|
|
|
9267 |
* @returns {Object} Returns `object`.
|
|
|
9268 |
* @example
|
|
|
9269 |
*
|
|
|
9270 |
* _.defaults({ 'user': 'barney' }, { 'age': 36 }, { 'user': 'fred' });
|
|
|
9271 |
* // => { 'user': 'barney', 'age': 36 }
|
|
|
9272 |
*/
|
|
|
9273 |
var defaults = createDefaults(assign, assignDefaults);
|
|
|
9274 |
|
|
|
9275 |
/**
|
|
|
9276 |
* This method is like `_.defaults` except that it recursively assigns
|
|
|
9277 |
* default properties.
|
|
|
9278 |
*
|
|
|
9279 |
* **Note:** This method mutates `object`.
|
|
|
9280 |
*
|
|
|
9281 |
* @static
|
|
|
9282 |
* @memberOf _
|
|
|
9283 |
* @category Object
|
|
|
9284 |
* @param {Object} object The destination object.
|
|
|
9285 |
* @param {...Object} [sources] The source objects.
|
|
|
9286 |
* @returns {Object} Returns `object`.
|
|
|
9287 |
* @example
|
|
|
9288 |
*
|
|
|
9289 |
* _.defaultsDeep({ 'user': { 'name': 'barney' } }, { 'user': { 'name': 'fred', 'age': 36 } });
|
|
|
9290 |
* // => { 'user': { 'name': 'barney', 'age': 36 } }
|
|
|
9291 |
*
|
|
|
9292 |
*/
|
|
|
9293 |
var defaultsDeep = createDefaults(merge, mergeDefaults);
|
|
|
9294 |
|
|
|
9295 |
/**
|
|
|
9296 |
* This method is like `_.find` except that it returns the key of the first
|
|
|
9297 |
* element `predicate` returns truthy for instead of the element itself.
|
|
|
9298 |
*
|
|
|
9299 |
* If a property name is provided for `predicate` the created `_.property`
|
|
|
9300 |
* style callback returns the property value of the given element.
|
|
|
9301 |
*
|
|
|
9302 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
9303 |
* style callback returns `true` for elements that have a matching property
|
|
|
9304 |
* value, else `false`.
|
|
|
9305 |
*
|
|
|
9306 |
* If an object is provided for `predicate` the created `_.matches` style
|
|
|
9307 |
* callback returns `true` for elements that have the properties of the given
|
|
|
9308 |
* object, else `false`.
|
|
|
9309 |
*
|
|
|
9310 |
* @static
|
|
|
9311 |
* @memberOf _
|
|
|
9312 |
* @category Object
|
|
|
9313 |
* @param {Object} object The object to search.
|
|
|
9314 |
* @param {Function|Object|string} [predicate=_.identity] The function invoked
|
|
|
9315 |
* per iteration.
|
|
|
9316 |
* @param {*} [thisArg] The `this` binding of `predicate`.
|
|
|
9317 |
* @returns {string|undefined} Returns the key of the matched element, else `undefined`.
|
|
|
9318 |
* @example
|
|
|
9319 |
*
|
|
|
9320 |
* var users = {
|
|
|
9321 |
* 'barney': { 'age': 36, 'active': true },
|
|
|
9322 |
* 'fred': { 'age': 40, 'active': false },
|
|
|
9323 |
* 'pebbles': { 'age': 1, 'active': true }
|
|
|
9324 |
* };
|
|
|
9325 |
*
|
|
|
9326 |
* _.findKey(users, function(chr) {
|
|
|
9327 |
* return chr.age < 40;
|
|
|
9328 |
* });
|
|
|
9329 |
* // => 'barney' (iteration order is not guaranteed)
|
|
|
9330 |
*
|
|
|
9331 |
* // using the `_.matches` callback shorthand
|
|
|
9332 |
* _.findKey(users, { 'age': 1, 'active': true });
|
|
|
9333 |
* // => 'pebbles'
|
|
|
9334 |
*
|
|
|
9335 |
* // using the `_.matchesProperty` callback shorthand
|
|
|
9336 |
* _.findKey(users, 'active', false);
|
|
|
9337 |
* // => 'fred'
|
|
|
9338 |
*
|
|
|
9339 |
* // using the `_.property` callback shorthand
|
|
|
9340 |
* _.findKey(users, 'active');
|
|
|
9341 |
* // => 'barney'
|
|
|
9342 |
*/
|
|
|
9343 |
var findKey = createFindKey(baseForOwn);
|
|
|
9344 |
|
|
|
9345 |
/**
|
|
|
9346 |
* This method is like `_.findKey` except that it iterates over elements of
|
|
|
9347 |
* a collection in the opposite order.
|
|
|
9348 |
*
|
|
|
9349 |
* If a property name is provided for `predicate` the created `_.property`
|
|
|
9350 |
* style callback returns the property value of the given element.
|
|
|
9351 |
*
|
|
|
9352 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
9353 |
* style callback returns `true` for elements that have a matching property
|
|
|
9354 |
* value, else `false`.
|
|
|
9355 |
*
|
|
|
9356 |
* If an object is provided for `predicate` the created `_.matches` style
|
|
|
9357 |
* callback returns `true` for elements that have the properties of the given
|
|
|
9358 |
* object, else `false`.
|
|
|
9359 |
*
|
|
|
9360 |
* @static
|
|
|
9361 |
* @memberOf _
|
|
|
9362 |
* @category Object
|
|
|
9363 |
* @param {Object} object The object to search.
|
|
|
9364 |
* @param {Function|Object|string} [predicate=_.identity] The function invoked
|
|
|
9365 |
* per iteration.
|
|
|
9366 |
* @param {*} [thisArg] The `this` binding of `predicate`.
|
|
|
9367 |
* @returns {string|undefined} Returns the key of the matched element, else `undefined`.
|
|
|
9368 |
* @example
|
|
|
9369 |
*
|
|
|
9370 |
* var users = {
|
|
|
9371 |
* 'barney': { 'age': 36, 'active': true },
|
|
|
9372 |
* 'fred': { 'age': 40, 'active': false },
|
|
|
9373 |
* 'pebbles': { 'age': 1, 'active': true }
|
|
|
9374 |
* };
|
|
|
9375 |
*
|
|
|
9376 |
* _.findLastKey(users, function(chr) {
|
|
|
9377 |
* return chr.age < 40;
|
|
|
9378 |
* });
|
|
|
9379 |
* // => returns `pebbles` assuming `_.findKey` returns `barney`
|
|
|
9380 |
*
|
|
|
9381 |
* // using the `_.matches` callback shorthand
|
|
|
9382 |
* _.findLastKey(users, { 'age': 36, 'active': true });
|
|
|
9383 |
* // => 'barney'
|
|
|
9384 |
*
|
|
|
9385 |
* // using the `_.matchesProperty` callback shorthand
|
|
|
9386 |
* _.findLastKey(users, 'active', false);
|
|
|
9387 |
* // => 'fred'
|
|
|
9388 |
*
|
|
|
9389 |
* // using the `_.property` callback shorthand
|
|
|
9390 |
* _.findLastKey(users, 'active');
|
|
|
9391 |
* // => 'pebbles'
|
|
|
9392 |
*/
|
|
|
9393 |
var findLastKey = createFindKey(baseForOwnRight);
|
|
|
9394 |
|
|
|
9395 |
/**
|
|
|
9396 |
* Iterates over own and inherited enumerable properties of an object invoking
|
|
|
9397 |
* `iteratee` for each property. The `iteratee` is bound to `thisArg` and invoked
|
|
|
9398 |
* with three arguments: (value, key, object). Iteratee functions may exit
|
|
|
9399 |
* iteration early by explicitly returning `false`.
|
|
|
9400 |
*
|
|
|
9401 |
* @static
|
|
|
9402 |
* @memberOf _
|
|
|
9403 |
* @category Object
|
|
|
9404 |
* @param {Object} object The object to iterate over.
|
|
|
9405 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
|
9406 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
|
9407 |
* @returns {Object} Returns `object`.
|
|
|
9408 |
* @example
|
|
|
9409 |
*
|
|
|
9410 |
* function Foo() {
|
|
|
9411 |
* this.a = 1;
|
|
|
9412 |
* this.b = 2;
|
|
|
9413 |
* }
|
|
|
9414 |
*
|
|
|
9415 |
* Foo.prototype.c = 3;
|
|
|
9416 |
*
|
|
|
9417 |
* _.forIn(new Foo, function(value, key) {
|
|
|
9418 |
* console.log(key);
|
|
|
9419 |
* });
|
|
|
9420 |
* // => logs 'a', 'b', and 'c' (iteration order is not guaranteed)
|
|
|
9421 |
*/
|
|
|
9422 |
var forIn = createForIn(baseFor);
|
|
|
9423 |
|
|
|
9424 |
/**
|
|
|
9425 |
* This method is like `_.forIn` except that it iterates over properties of
|
|
|
9426 |
* `object` in the opposite order.
|
|
|
9427 |
*
|
|
|
9428 |
* @static
|
|
|
9429 |
* @memberOf _
|
|
|
9430 |
* @category Object
|
|
|
9431 |
* @param {Object} object The object to iterate over.
|
|
|
9432 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
|
9433 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
|
9434 |
* @returns {Object} Returns `object`.
|
|
|
9435 |
* @example
|
|
|
9436 |
*
|
|
|
9437 |
* function Foo() {
|
|
|
9438 |
* this.a = 1;
|
|
|
9439 |
* this.b = 2;
|
|
|
9440 |
* }
|
|
|
9441 |
*
|
|
|
9442 |
* Foo.prototype.c = 3;
|
|
|
9443 |
*
|
|
|
9444 |
* _.forInRight(new Foo, function(value, key) {
|
|
|
9445 |
* console.log(key);
|
|
|
9446 |
* });
|
|
|
9447 |
* // => logs 'c', 'b', and 'a' assuming `_.forIn ` logs 'a', 'b', and 'c'
|
|
|
9448 |
*/
|
|
|
9449 |
var forInRight = createForIn(baseForRight);
|
|
|
9450 |
|
|
|
9451 |
/**
|
|
|
9452 |
* Iterates over own enumerable properties of an object invoking `iteratee`
|
|
|
9453 |
* for each property. The `iteratee` is bound to `thisArg` and invoked with
|
|
|
9454 |
* three arguments: (value, key, object). Iteratee functions may exit iteration
|
|
|
9455 |
* early by explicitly returning `false`.
|
|
|
9456 |
*
|
|
|
9457 |
* @static
|
|
|
9458 |
* @memberOf _
|
|
|
9459 |
* @category Object
|
|
|
9460 |
* @param {Object} object The object to iterate over.
|
|
|
9461 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
|
9462 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
|
9463 |
* @returns {Object} Returns `object`.
|
|
|
9464 |
* @example
|
|
|
9465 |
*
|
|
|
9466 |
* function Foo() {
|
|
|
9467 |
* this.a = 1;
|
|
|
9468 |
* this.b = 2;
|
|
|
9469 |
* }
|
|
|
9470 |
*
|
|
|
9471 |
* Foo.prototype.c = 3;
|
|
|
9472 |
*
|
|
|
9473 |
* _.forOwn(new Foo, function(value, key) {
|
|
|
9474 |
* console.log(key);
|
|
|
9475 |
* });
|
|
|
9476 |
* // => logs 'a' and 'b' (iteration order is not guaranteed)
|
|
|
9477 |
*/
|
|
|
9478 |
var forOwn = createForOwn(baseForOwn);
|
|
|
9479 |
|
|
|
9480 |
/**
|
|
|
9481 |
* This method is like `_.forOwn` except that it iterates over properties of
|
|
|
9482 |
* `object` in the opposite order.
|
|
|
9483 |
*
|
|
|
9484 |
* @static
|
|
|
9485 |
* @memberOf _
|
|
|
9486 |
* @category Object
|
|
|
9487 |
* @param {Object} object The object to iterate over.
|
|
|
9488 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
|
9489 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
|
9490 |
* @returns {Object} Returns `object`.
|
|
|
9491 |
* @example
|
|
|
9492 |
*
|
|
|
9493 |
* function Foo() {
|
|
|
9494 |
* this.a = 1;
|
|
|
9495 |
* this.b = 2;
|
|
|
9496 |
* }
|
|
|
9497 |
*
|
|
|
9498 |
* Foo.prototype.c = 3;
|
|
|
9499 |
*
|
|
|
9500 |
* _.forOwnRight(new Foo, function(value, key) {
|
|
|
9501 |
* console.log(key);
|
|
|
9502 |
* });
|
|
|
9503 |
* // => logs 'b' and 'a' assuming `_.forOwn` logs 'a' and 'b'
|
|
|
9504 |
*/
|
|
|
9505 |
var forOwnRight = createForOwn(baseForOwnRight);
|
|
|
9506 |
|
|
|
9507 |
/**
|
|
|
9508 |
* Creates an array of function property names from all enumerable properties,
|
|
|
9509 |
* own and inherited, of `object`.
|
|
|
9510 |
*
|
|
|
9511 |
* @static
|
|
|
9512 |
* @memberOf _
|
|
|
9513 |
* @alias methods
|
|
|
9514 |
* @category Object
|
|
|
9515 |
* @param {Object} object The object to inspect.
|
|
|
9516 |
* @returns {Array} Returns the new array of property names.
|
|
|
9517 |
* @example
|
|
|
9518 |
*
|
|
|
9519 |
* _.functions(_);
|
|
|
9520 |
* // => ['after', 'ary', 'assign', ...]
|
|
|
9521 |
*/
|
|
|
9522 |
function functions(object) {
|
|
|
9523 |
return baseFunctions(object, keysIn(object));
|
|
|
9524 |
}
|
|
|
9525 |
|
|
|
9526 |
/**
|
|
|
9527 |
* Gets the property value at `path` of `object`. If the resolved value is
|
|
|
9528 |
* `undefined` the `defaultValue` is used in its place.
|
|
|
9529 |
*
|
|
|
9530 |
* @static
|
|
|
9531 |
* @memberOf _
|
|
|
9532 |
* @category Object
|
|
|
9533 |
* @param {Object} object The object to query.
|
|
|
9534 |
* @param {Array|string} path The path of the property to get.
|
|
|
9535 |
* @param {*} [defaultValue] The value returned if the resolved value is `undefined`.
|
|
|
9536 |
* @returns {*} Returns the resolved value.
|
|
|
9537 |
* @example
|
|
|
9538 |
*
|
|
|
9539 |
* var object = { 'a': [{ 'b': { 'c': 3 } }] };
|
|
|
9540 |
*
|
|
|
9541 |
* _.get(object, 'a[0].b.c');
|
|
|
9542 |
* // => 3
|
|
|
9543 |
*
|
|
|
9544 |
* _.get(object, ['a', '0', 'b', 'c']);
|
|
|
9545 |
* // => 3
|
|
|
9546 |
*
|
|
|
9547 |
* _.get(object, 'a.b.c', 'default');
|
|
|
9548 |
* // => 'default'
|
|
|
9549 |
*/
|
|
|
9550 |
function get(object, path, defaultValue) {
|
|
|
9551 |
var result = object == null ? undefined : baseGet(object, toPath(path), (path + ''));
|
|
|
9552 |
return result === undefined ? defaultValue : result;
|
|
|
9553 |
}
|
|
|
9554 |
|
|
|
9555 |
/**
|
|
|
9556 |
* Checks if `path` is a direct property.
|
|
|
9557 |
*
|
|
|
9558 |
* @static
|
|
|
9559 |
* @memberOf _
|
|
|
9560 |
* @category Object
|
|
|
9561 |
* @param {Object} object The object to query.
|
|
|
9562 |
* @param {Array|string} path The path to check.
|
|
|
9563 |
* @returns {boolean} Returns `true` if `path` is a direct property, else `false`.
|
|
|
9564 |
* @example
|
|
|
9565 |
*
|
|
|
9566 |
* var object = { 'a': { 'b': { 'c': 3 } } };
|
|
|
9567 |
*
|
|
|
9568 |
* _.has(object, 'a');
|
|
|
9569 |
* // => true
|
|
|
9570 |
*
|
|
|
9571 |
* _.has(object, 'a.b.c');
|
|
|
9572 |
* // => true
|
|
|
9573 |
*
|
|
|
9574 |
* _.has(object, ['a', 'b', 'c']);
|
|
|
9575 |
* // => true
|
|
|
9576 |
*/
|
|
|
9577 |
function has(object, path) {
|
|
|
9578 |
if (object == null) {
|
|
|
9579 |
return false;
|
|
|
9580 |
}
|
|
|
9581 |
var result = hasOwnProperty.call(object, path);
|
|
|
9582 |
if (!result && !isKey(path)) {
|
|
|
9583 |
path = toPath(path);
|
|
|
9584 |
object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1));
|
|
|
9585 |
if (object == null) {
|
|
|
9586 |
return false;
|
|
|
9587 |
}
|
|
|
9588 |
path = last(path);
|
|
|
9589 |
result = hasOwnProperty.call(object, path);
|
|
|
9590 |
}
|
|
|
9591 |
return result || (isLength(object.length) && isIndex(path, object.length) &&
|
|
|
9592 |
(isArray(object) || isArguments(object)));
|
|
|
9593 |
}
|
|
|
9594 |
|
|
|
9595 |
/**
|
|
|
9596 |
* Creates an object composed of the inverted keys and values of `object`.
|
|
|
9597 |
* If `object` contains duplicate values, subsequent values overwrite property
|
|
|
9598 |
* assignments of previous values unless `multiValue` is `true`.
|
|
|
9599 |
*
|
|
|
9600 |
* @static
|
|
|
9601 |
* @memberOf _
|
|
|
9602 |
* @category Object
|
|
|
9603 |
* @param {Object} object The object to invert.
|
|
|
9604 |
* @param {boolean} [multiValue] Allow multiple values per key.
|
|
|
9605 |
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
|
|
|
9606 |
* @returns {Object} Returns the new inverted object.
|
|
|
9607 |
* @example
|
|
|
9608 |
*
|
|
|
9609 |
* var object = { 'a': 1, 'b': 2, 'c': 1 };
|
|
|
9610 |
*
|
|
|
9611 |
* _.invert(object);
|
|
|
9612 |
* // => { '1': 'c', '2': 'b' }
|
|
|
9613 |
*
|
|
|
9614 |
* // with `multiValue`
|
|
|
9615 |
* _.invert(object, true);
|
|
|
9616 |
* // => { '1': ['a', 'c'], '2': ['b'] }
|
|
|
9617 |
*/
|
|
|
9618 |
function invert(object, multiValue, guard) {
|
|
|
9619 |
if (guard && isIterateeCall(object, multiValue, guard)) {
|
|
|
9620 |
multiValue = undefined;
|
|
|
9621 |
}
|
|
|
9622 |
var index = -1,
|
|
|
9623 |
props = keys(object),
|
|
|
9624 |
length = props.length,
|
|
|
9625 |
result = {};
|
|
|
9626 |
|
|
|
9627 |
while (++index < length) {
|
|
|
9628 |
var key = props[index],
|
|
|
9629 |
value = object[key];
|
|
|
9630 |
|
|
|
9631 |
if (multiValue) {
|
|
|
9632 |
if (hasOwnProperty.call(result, value)) {
|
|
|
9633 |
result[value].push(key);
|
|
|
9634 |
} else {
|
|
|
9635 |
result[value] = [key];
|
|
|
9636 |
}
|
|
|
9637 |
}
|
|
|
9638 |
else {
|
|
|
9639 |
result[value] = key;
|
|
|
9640 |
}
|
|
|
9641 |
}
|
|
|
9642 |
return result;
|
|
|
9643 |
}
|
|
|
9644 |
|
|
|
9645 |
/**
|
|
|
9646 |
* Creates an array of the own enumerable property names of `object`.
|
|
|
9647 |
*
|
|
|
9648 |
* **Note:** Non-object values are coerced to objects. See the
|
|
|
9649 |
* [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys)
|
|
|
9650 |
* for more details.
|
|
|
9651 |
*
|
|
|
9652 |
* @static
|
|
|
9653 |
* @memberOf _
|
|
|
9654 |
* @category Object
|
|
|
9655 |
* @param {Object} object The object to query.
|
|
|
9656 |
* @returns {Array} Returns the array of property names.
|
|
|
9657 |
* @example
|
|
|
9658 |
*
|
|
|
9659 |
* function Foo() {
|
|
|
9660 |
* this.a = 1;
|
|
|
9661 |
* this.b = 2;
|
|
|
9662 |
* }
|
|
|
9663 |
*
|
|
|
9664 |
* Foo.prototype.c = 3;
|
|
|
9665 |
*
|
|
|
9666 |
* _.keys(new Foo);
|
|
|
9667 |
* // => ['a', 'b'] (iteration order is not guaranteed)
|
|
|
9668 |
*
|
|
|
9669 |
* _.keys('hi');
|
|
|
9670 |
* // => ['0', '1']
|
|
|
9671 |
*/
|
|
|
9672 |
var keys = !nativeKeys ? shimKeys : function(object) {
|
|
|
9673 |
var Ctor = object == null ? undefined : object.constructor;
|
|
|
9674 |
if ((typeof Ctor == 'function' && Ctor.prototype === object) ||
|
|
|
9675 |
(typeof object != 'function' && isArrayLike(object))) {
|
|
|
9676 |
return shimKeys(object);
|
|
|
9677 |
}
|
|
|
9678 |
return isObject(object) ? nativeKeys(object) : [];
|
|
|
9679 |
};
|
|
|
9680 |
|
|
|
9681 |
/**
|
|
|
9682 |
* Creates an array of the own and inherited enumerable property names of `object`.
|
|
|
9683 |
*
|
|
|
9684 |
* **Note:** Non-object values are coerced to objects.
|
|
|
9685 |
*
|
|
|
9686 |
* @static
|
|
|
9687 |
* @memberOf _
|
|
|
9688 |
* @category Object
|
|
|
9689 |
* @param {Object} object The object to query.
|
|
|
9690 |
* @returns {Array} Returns the array of property names.
|
|
|
9691 |
* @example
|
|
|
9692 |
*
|
|
|
9693 |
* function Foo() {
|
|
|
9694 |
* this.a = 1;
|
|
|
9695 |
* this.b = 2;
|
|
|
9696 |
* }
|
|
|
9697 |
*
|
|
|
9698 |
* Foo.prototype.c = 3;
|
|
|
9699 |
*
|
|
|
9700 |
* _.keysIn(new Foo);
|
|
|
9701 |
* // => ['a', 'b', 'c'] (iteration order is not guaranteed)
|
|
|
9702 |
*/
|
|
|
9703 |
function keysIn(object) {
|
|
|
9704 |
if (object == null) {
|
|
|
9705 |
return [];
|
|
|
9706 |
}
|
|
|
9707 |
if (!isObject(object)) {
|
|
|
9708 |
object = Object(object);
|
|
|
9709 |
}
|
|
|
9710 |
var length = object.length;
|
|
|
9711 |
length = (length && isLength(length) &&
|
|
|
9712 |
(isArray(object) || isArguments(object)) && length) || 0;
|
|
|
9713 |
|
|
|
9714 |
var Ctor = object.constructor,
|
|
|
9715 |
index = -1,
|
|
|
9716 |
isProto = typeof Ctor == 'function' && Ctor.prototype === object,
|
|
|
9717 |
result = Array(length),
|
|
|
9718 |
skipIndexes = length > 0;
|
|
|
9719 |
|
|
|
9720 |
while (++index < length) {
|
|
|
9721 |
result[index] = (index + '');
|
|
|
9722 |
}
|
|
|
9723 |
for (var key in object) {
|
|
|
9724 |
if (!(skipIndexes && isIndex(key, length)) &&
|
|
|
9725 |
!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
|
|
|
9726 |
result.push(key);
|
|
|
9727 |
}
|
|
|
9728 |
}
|
|
|
9729 |
return result;
|
|
|
9730 |
}
|
|
|
9731 |
|
|
|
9732 |
/**
|
|
|
9733 |
* The opposite of `_.mapValues`; this method creates an object with the
|
|
|
9734 |
* same values as `object` and keys generated by running each own enumerable
|
|
|
9735 |
* property of `object` through `iteratee`.
|
|
|
9736 |
*
|
|
|
9737 |
* @static
|
|
|
9738 |
* @memberOf _
|
|
|
9739 |
* @category Object
|
|
|
9740 |
* @param {Object} object The object to iterate over.
|
|
|
9741 |
* @param {Function|Object|string} [iteratee=_.identity] The function invoked
|
|
|
9742 |
* per iteration.
|
|
|
9743 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
|
9744 |
* @returns {Object} Returns the new mapped object.
|
|
|
9745 |
* @example
|
|
|
9746 |
*
|
|
|
9747 |
* _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {
|
|
|
9748 |
* return key + value;
|
|
|
9749 |
* });
|
|
|
9750 |
* // => { 'a1': 1, 'b2': 2 }
|
|
|
9751 |
*/
|
|
|
9752 |
var mapKeys = createObjectMapper(true);
|
|
|
9753 |
|
|
|
9754 |
/**
|
|
|
9755 |
* Creates an object with the same keys as `object` and values generated by
|
|
|
9756 |
* running each own enumerable property of `object` through `iteratee`. The
|
|
|
9757 |
* iteratee function is bound to `thisArg` and invoked with three arguments:
|
|
|
9758 |
* (value, key, object).
|
|
|
9759 |
*
|
|
|
9760 |
* If a property name is provided for `iteratee` the created `_.property`
|
|
|
9761 |
* style callback returns the property value of the given element.
|
|
|
9762 |
*
|
|
|
9763 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
9764 |
* style callback returns `true` for elements that have a matching property
|
|
|
9765 |
* value, else `false`.
|
|
|
9766 |
*
|
|
|
9767 |
* If an object is provided for `iteratee` the created `_.matches` style
|
|
|
9768 |
* callback returns `true` for elements that have the properties of the given
|
|
|
9769 |
* object, else `false`.
|
|
|
9770 |
*
|
|
|
9771 |
* @static
|
|
|
9772 |
* @memberOf _
|
|
|
9773 |
* @category Object
|
|
|
9774 |
* @param {Object} object The object to iterate over.
|
|
|
9775 |
* @param {Function|Object|string} [iteratee=_.identity] The function invoked
|
|
|
9776 |
* per iteration.
|
|
|
9777 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
|
9778 |
* @returns {Object} Returns the new mapped object.
|
|
|
9779 |
* @example
|
|
|
9780 |
*
|
|
|
9781 |
* _.mapValues({ 'a': 1, 'b': 2 }, function(n) {
|
|
|
9782 |
* return n * 3;
|
|
|
9783 |
* });
|
|
|
9784 |
* // => { 'a': 3, 'b': 6 }
|
|
|
9785 |
*
|
|
|
9786 |
* var users = {
|
|
|
9787 |
* 'fred': { 'user': 'fred', 'age': 40 },
|
|
|
9788 |
* 'pebbles': { 'user': 'pebbles', 'age': 1 }
|
|
|
9789 |
* };
|
|
|
9790 |
*
|
|
|
9791 |
* // using the `_.property` callback shorthand
|
|
|
9792 |
* _.mapValues(users, 'age');
|
|
|
9793 |
* // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
|
|
|
9794 |
*/
|
|
|
9795 |
var mapValues = createObjectMapper();
|
|
|
9796 |
|
|
|
9797 |
/**
|
|
|
9798 |
* The opposite of `_.pick`; this method creates an object composed of the
|
|
|
9799 |
* own and inherited enumerable properties of `object` that are not omitted.
|
|
|
9800 |
*
|
|
|
9801 |
* @static
|
|
|
9802 |
* @memberOf _
|
|
|
9803 |
* @category Object
|
|
|
9804 |
* @param {Object} object The source object.
|
|
|
9805 |
* @param {Function|...(string|string[])} [predicate] The function invoked per
|
|
|
9806 |
* iteration or property names to omit, specified as individual property
|
|
|
9807 |
* names or arrays of property names.
|
|
|
9808 |
* @param {*} [thisArg] The `this` binding of `predicate`.
|
|
|
9809 |
* @returns {Object} Returns the new object.
|
|
|
9810 |
* @example
|
|
|
9811 |
*
|
|
|
9812 |
* var object = { 'user': 'fred', 'age': 40 };
|
|
|
9813 |
*
|
|
|
9814 |
* _.omit(object, 'age');
|
|
|
9815 |
* // => { 'user': 'fred' }
|
|
|
9816 |
*
|
|
|
9817 |
* _.omit(object, _.isNumber);
|
|
|
9818 |
* // => { 'user': 'fred' }
|
|
|
9819 |
*/
|
|
|
9820 |
var omit = restParam(function(object, props) {
|
|
|
9821 |
if (object == null) {
|
|
|
9822 |
return {};
|
|
|
9823 |
}
|
|
|
9824 |
if (typeof props[0] != 'function') {
|
|
|
9825 |
var props = arrayMap(baseFlatten(props), String);
|
|
|
9826 |
return pickByArray(object, baseDifference(keysIn(object), props));
|
|
|
9827 |
}
|
|
|
9828 |
var predicate = bindCallback(props[0], props[1], 3);
|
|
|
9829 |
return pickByCallback(object, function(value, key, object) {
|
|
|
9830 |
return !predicate(value, key, object);
|
|
442
|
9831 |
});
|
|
498
|
9832 |
});
|
|
|
9833 |
|
|
|
9834 |
/**
|
|
|
9835 |
* Creates a two dimensional array of the key-value pairs for `object`,
|
|
|
9836 |
* e.g. `[[key1, value1], [key2, value2]]`.
|
|
|
9837 |
*
|
|
|
9838 |
* @static
|
|
|
9839 |
* @memberOf _
|
|
|
9840 |
* @category Object
|
|
|
9841 |
* @param {Object} object The object to query.
|
|
|
9842 |
* @returns {Array} Returns the new array of key-value pairs.
|
|
|
9843 |
* @example
|
|
|
9844 |
*
|
|
|
9845 |
* _.pairs({ 'barney': 36, 'fred': 40 });
|
|
|
9846 |
* // => [['barney', 36], ['fred', 40]] (iteration order is not guaranteed)
|
|
|
9847 |
*/
|
|
|
9848 |
function pairs(object) {
|
|
|
9849 |
object = toObject(object);
|
|
|
9850 |
|
|
|
9851 |
var index = -1,
|
|
|
9852 |
props = keys(object),
|
|
|
9853 |
length = props.length,
|
|
|
9854 |
result = Array(length);
|
|
|
9855 |
|
|
|
9856 |
while (++index < length) {
|
|
|
9857 |
var key = props[index];
|
|
|
9858 |
result[index] = [key, object[key]];
|
|
|
9859 |
}
|
|
|
9860 |
return result;
|
|
|
9861 |
}
|
|
|
9862 |
|
|
|
9863 |
/**
|
|
|
9864 |
* Creates an object composed of the picked `object` properties. Property
|
|
|
9865 |
* names may be specified as individual arguments or as arrays of property
|
|
|
9866 |
* names. If `predicate` is provided it's invoked for each property of `object`
|
|
|
9867 |
* picking the properties `predicate` returns truthy for. The predicate is
|
|
|
9868 |
* bound to `thisArg` and invoked with three arguments: (value, key, object).
|
|
|
9869 |
*
|
|
|
9870 |
* @static
|
|
|
9871 |
* @memberOf _
|
|
|
9872 |
* @category Object
|
|
|
9873 |
* @param {Object} object The source object.
|
|
|
9874 |
* @param {Function|...(string|string[])} [predicate] The function invoked per
|
|
|
9875 |
* iteration or property names to pick, specified as individual property
|
|
|
9876 |
* names or arrays of property names.
|
|
|
9877 |
* @param {*} [thisArg] The `this` binding of `predicate`.
|
|
|
9878 |
* @returns {Object} Returns the new object.
|
|
|
9879 |
* @example
|
|
|
9880 |
*
|
|
|
9881 |
* var object = { 'user': 'fred', 'age': 40 };
|
|
|
9882 |
*
|
|
|
9883 |
* _.pick(object, 'user');
|
|
|
9884 |
* // => { 'user': 'fred' }
|
|
|
9885 |
*
|
|
|
9886 |
* _.pick(object, _.isString);
|
|
|
9887 |
* // => { 'user': 'fred' }
|
|
|
9888 |
*/
|
|
|
9889 |
var pick = restParam(function(object, props) {
|
|
|
9890 |
if (object == null) {
|
|
|
9891 |
return {};
|
|
|
9892 |
}
|
|
|
9893 |
return typeof props[0] == 'function'
|
|
|
9894 |
? pickByCallback(object, bindCallback(props[0], props[1], 3))
|
|
|
9895 |
: pickByArray(object, baseFlatten(props));
|
|
|
9896 |
});
|
|
|
9897 |
|
|
|
9898 |
/**
|
|
|
9899 |
* This method is like `_.get` except that if the resolved value is a function
|
|
|
9900 |
* it's invoked with the `this` binding of its parent object and its result
|
|
|
9901 |
* is returned.
|
|
|
9902 |
*
|
|
|
9903 |
* @static
|
|
|
9904 |
* @memberOf _
|
|
|
9905 |
* @category Object
|
|
|
9906 |
* @param {Object} object The object to query.
|
|
|
9907 |
* @param {Array|string} path The path of the property to resolve.
|
|
|
9908 |
* @param {*} [defaultValue] The value returned if the resolved value is `undefined`.
|
|
|
9909 |
* @returns {*} Returns the resolved value.
|
|
|
9910 |
* @example
|
|
|
9911 |
*
|
|
|
9912 |
* var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };
|
|
|
9913 |
*
|
|
|
9914 |
* _.result(object, 'a[0].b.c1');
|
|
|
9915 |
* // => 3
|
|
|
9916 |
*
|
|
|
9917 |
* _.result(object, 'a[0].b.c2');
|
|
|
9918 |
* // => 4
|
|
|
9919 |
*
|
|
|
9920 |
* _.result(object, 'a.b.c', 'default');
|
|
|
9921 |
* // => 'default'
|
|
|
9922 |
*
|
|
|
9923 |
* _.result(object, 'a.b.c', _.constant('default'));
|
|
|
9924 |
* // => 'default'
|
|
|
9925 |
*/
|
|
|
9926 |
function result(object, path, defaultValue) {
|
|
|
9927 |
var result = object == null ? undefined : object[path];
|
|
|
9928 |
if (result === undefined) {
|
|
|
9929 |
if (object != null && !isKey(path, object)) {
|
|
|
9930 |
path = toPath(path);
|
|
|
9931 |
object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1));
|
|
|
9932 |
result = object == null ? undefined : object[last(path)];
|
|
|
9933 |
}
|
|
|
9934 |
result = result === undefined ? defaultValue : result;
|
|
|
9935 |
}
|
|
|
9936 |
return isFunction(result) ? result.call(object) : result;
|
|
|
9937 |
}
|
|
|
9938 |
|
|
|
9939 |
/**
|
|
|
9940 |
* Sets the property value of `path` on `object`. If a portion of `path`
|
|
|
9941 |
* does not exist it's created.
|
|
|
9942 |
*
|
|
|
9943 |
* @static
|
|
|
9944 |
* @memberOf _
|
|
|
9945 |
* @category Object
|
|
|
9946 |
* @param {Object} object The object to augment.
|
|
|
9947 |
* @param {Array|string} path The path of the property to set.
|
|
|
9948 |
* @param {*} value The value to set.
|
|
|
9949 |
* @returns {Object} Returns `object`.
|
|
|
9950 |
* @example
|
|
|
9951 |
*
|
|
|
9952 |
* var object = { 'a': [{ 'b': { 'c': 3 } }] };
|
|
|
9953 |
*
|
|
|
9954 |
* _.set(object, 'a[0].b.c', 4);
|
|
|
9955 |
* console.log(object.a[0].b.c);
|
|
|
9956 |
* // => 4
|
|
|
9957 |
*
|
|
|
9958 |
* _.set(object, 'x[0].y.z', 5);
|
|
|
9959 |
* console.log(object.x[0].y.z);
|
|
|
9960 |
* // => 5
|
|
|
9961 |
*/
|
|
|
9962 |
function set(object, path, value) {
|
|
|
9963 |
if (object == null) {
|
|
|
9964 |
return object;
|
|
|
9965 |
}
|
|
|
9966 |
var pathKey = (path + '');
|
|
|
9967 |
path = (object[pathKey] != null || isKey(path, object)) ? [pathKey] : toPath(path);
|
|
|
9968 |
|
|
|
9969 |
var index = -1,
|
|
|
9970 |
length = path.length,
|
|
|
9971 |
lastIndex = length - 1,
|
|
|
9972 |
nested = object;
|
|
|
9973 |
|
|
|
9974 |
while (nested != null && ++index < length) {
|
|
|
9975 |
var key = path[index];
|
|
|
9976 |
if (isObject(nested)) {
|
|
|
9977 |
if (index == lastIndex) {
|
|
|
9978 |
nested[key] = value;
|
|
|
9979 |
} else if (nested[key] == null) {
|
|
|
9980 |
nested[key] = isIndex(path[index + 1]) ? [] : {};
|
|
|
9981 |
}
|
|
|
9982 |
}
|
|
|
9983 |
nested = nested[key];
|
|
|
9984 |
}
|
|
|
9985 |
return object;
|
|
|
9986 |
}
|
|
|
9987 |
|
|
|
9988 |
/**
|
|
|
9989 |
* An alternative to `_.reduce`; this method transforms `object` to a new
|
|
|
9990 |
* `accumulator` object which is the result of running each of its own enumerable
|
|
|
9991 |
* properties through `iteratee`, with each invocation potentially mutating
|
|
|
9992 |
* the `accumulator` object. The `iteratee` is bound to `thisArg` and invoked
|
|
|
9993 |
* with four arguments: (accumulator, value, key, object). Iteratee functions
|
|
|
9994 |
* may exit iteration early by explicitly returning `false`.
|
|
|
9995 |
*
|
|
|
9996 |
* @static
|
|
|
9997 |
* @memberOf _
|
|
|
9998 |
* @category Object
|
|
|
9999 |
* @param {Array|Object} object The object to iterate over.
|
|
|
10000 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
|
10001 |
* @param {*} [accumulator] The custom accumulator value.
|
|
|
10002 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
|
10003 |
* @returns {*} Returns the accumulated value.
|
|
|
10004 |
* @example
|
|
|
10005 |
*
|
|
|
10006 |
* _.transform([2, 3, 4], function(result, n) {
|
|
|
10007 |
* result.push(n *= n);
|
|
|
10008 |
* return n % 2 == 0;
|
|
|
10009 |
* });
|
|
|
10010 |
* // => [4, 9]
|
|
|
10011 |
*
|
|
|
10012 |
* _.transform({ 'a': 1, 'b': 2 }, function(result, n, key) {
|
|
|
10013 |
* result[key] = n * 3;
|
|
|
10014 |
* });
|
|
|
10015 |
* // => { 'a': 3, 'b': 6 }
|
|
|
10016 |
*/
|
|
|
10017 |
function transform(object, iteratee, accumulator, thisArg) {
|
|
|
10018 |
var isArr = isArray(object) || isTypedArray(object);
|
|
|
10019 |
iteratee = getCallback(iteratee, thisArg, 4);
|
|
|
10020 |
|
|
|
10021 |
if (accumulator == null) {
|
|
|
10022 |
if (isArr || isObject(object)) {
|
|
|
10023 |
var Ctor = object.constructor;
|
|
|
10024 |
if (isArr) {
|
|
|
10025 |
accumulator = isArray(object) ? new Ctor : [];
|
|
|
10026 |
} else {
|
|
|
10027 |
accumulator = baseCreate(isFunction(Ctor) ? Ctor.prototype : undefined);
|
|
|
10028 |
}
|
|
|
10029 |
} else {
|
|
|
10030 |
accumulator = {};
|
|
|
10031 |
}
|
|
|
10032 |
}
|
|
|
10033 |
(isArr ? arrayEach : baseForOwn)(object, function(value, index, object) {
|
|
|
10034 |
return iteratee(accumulator, value, index, object);
|
|
|
10035 |
});
|
|
|
10036 |
return accumulator;
|
|
|
10037 |
}
|
|
|
10038 |
|
|
|
10039 |
/**
|
|
|
10040 |
* Creates an array of the own enumerable property values of `object`.
|
|
|
10041 |
*
|
|
|
10042 |
* **Note:** Non-object values are coerced to objects.
|
|
|
10043 |
*
|
|
|
10044 |
* @static
|
|
|
10045 |
* @memberOf _
|
|
|
10046 |
* @category Object
|
|
|
10047 |
* @param {Object} object The object to query.
|
|
|
10048 |
* @returns {Array} Returns the array of property values.
|
|
|
10049 |
* @example
|
|
|
10050 |
*
|
|
|
10051 |
* function Foo() {
|
|
|
10052 |
* this.a = 1;
|
|
|
10053 |
* this.b = 2;
|
|
|
10054 |
* }
|
|
|
10055 |
*
|
|
|
10056 |
* Foo.prototype.c = 3;
|
|
|
10057 |
*
|
|
|
10058 |
* _.values(new Foo);
|
|
|
10059 |
* // => [1, 2] (iteration order is not guaranteed)
|
|
|
10060 |
*
|
|
|
10061 |
* _.values('hi');
|
|
|
10062 |
* // => ['h', 'i']
|
|
|
10063 |
*/
|
|
|
10064 |
function values(object) {
|
|
|
10065 |
return baseValues(object, keys(object));
|
|
|
10066 |
}
|
|
|
10067 |
|
|
|
10068 |
/**
|
|
|
10069 |
* Creates an array of the own and inherited enumerable property values
|
|
|
10070 |
* of `object`.
|
|
|
10071 |
*
|
|
|
10072 |
* **Note:** Non-object values are coerced to objects.
|
|
|
10073 |
*
|
|
|
10074 |
* @static
|
|
|
10075 |
* @memberOf _
|
|
|
10076 |
* @category Object
|
|
|
10077 |
* @param {Object} object The object to query.
|
|
|
10078 |
* @returns {Array} Returns the array of property values.
|
|
|
10079 |
* @example
|
|
|
10080 |
*
|
|
|
10081 |
* function Foo() {
|
|
|
10082 |
* this.a = 1;
|
|
|
10083 |
* this.b = 2;
|
|
|
10084 |
* }
|
|
|
10085 |
*
|
|
|
10086 |
* Foo.prototype.c = 3;
|
|
|
10087 |
*
|
|
|
10088 |
* _.valuesIn(new Foo);
|
|
|
10089 |
* // => [1, 2, 3] (iteration order is not guaranteed)
|
|
|
10090 |
*/
|
|
|
10091 |
function valuesIn(object) {
|
|
|
10092 |
return baseValues(object, keysIn(object));
|
|
|
10093 |
}
|
|
|
10094 |
|
|
|
10095 |
/*------------------------------------------------------------------------*/
|
|
|
10096 |
|
|
|
10097 |
/**
|
|
|
10098 |
* Checks if `n` is between `start` and up to but not including, `end`. If
|
|
|
10099 |
* `end` is not specified it's set to `start` with `start` then set to `0`.
|
|
|
10100 |
*
|
|
|
10101 |
* @static
|
|
|
10102 |
* @memberOf _
|
|
|
10103 |
* @category Number
|
|
|
10104 |
* @param {number} n The number to check.
|
|
|
10105 |
* @param {number} [start=0] The start of the range.
|
|
|
10106 |
* @param {number} end The end of the range.
|
|
|
10107 |
* @returns {boolean} Returns `true` if `n` is in the range, else `false`.
|
|
|
10108 |
* @example
|
|
|
10109 |
*
|
|
|
10110 |
* _.inRange(3, 2, 4);
|
|
442
|
10111 |
* // => true
|
|
498
|
10112 |
*
|
|
|
10113 |
* _.inRange(4, 8);
|
|
|
10114 |
* // => true
|
|
|
10115 |
*
|
|
|
10116 |
* _.inRange(4, 2);
|
|
|
10117 |
* // => false
|
|
|
10118 |
*
|
|
|
10119 |
* _.inRange(2, 2);
|
|
|
10120 |
* // => false
|
|
|
10121 |
*
|
|
|
10122 |
* _.inRange(1.2, 2);
|
|
|
10123 |
* // => true
|
|
|
10124 |
*
|
|
|
10125 |
* _.inRange(5.2, 4);
|
|
|
10126 |
* // => false
|
|
|
10127 |
*/
|
|
|
10128 |
function inRange(value, start, end) {
|
|
|
10129 |
start = +start || 0;
|
|
|
10130 |
if (end === undefined) {
|
|
|
10131 |
end = start;
|
|
|
10132 |
start = 0;
|
|
|
10133 |
} else {
|
|
|
10134 |
end = +end || 0;
|
|
|
10135 |
}
|
|
|
10136 |
return value >= nativeMin(start, end) && value < nativeMax(start, end);
|
|
442
|
10137 |
}
|
|
|
10138 |
|
|
|
10139 |
/**
|
|
|
10140 |
* Produces a random number between `min` and `max` (inclusive). If only one
|
|
498
|
10141 |
* argument is provided a number between `0` and the given number is returned.
|
|
|
10142 |
* If `floating` is `true`, or either `min` or `max` are floats, a floating-point
|
|
|
10143 |
* number is returned instead of an integer.
|
|
|
10144 |
*
|
|
|
10145 |
* @static
|
|
|
10146 |
* @memberOf _
|
|
|
10147 |
* @category Number
|
|
442
|
10148 |
* @param {number} [min=0] The minimum possible value.
|
|
|
10149 |
* @param {number} [max=1] The maximum possible value.
|
|
498
|
10150 |
* @param {boolean} [floating] Specify returning a floating-point number.
|
|
|
10151 |
* @returns {number} Returns the random number.
|
|
442
|
10152 |
* @example
|
|
|
10153 |
*
|
|
|
10154 |
* _.random(0, 5);
|
|
|
10155 |
* // => an integer between 0 and 5
|
|
|
10156 |
*
|
|
|
10157 |
* _.random(5);
|
|
|
10158 |
* // => also an integer between 0 and 5
|
|
|
10159 |
*
|
|
|
10160 |
* _.random(5, true);
|
|
|
10161 |
* // => a floating-point number between 0 and 5
|
|
|
10162 |
*
|
|
|
10163 |
* _.random(1.2, 5.2);
|
|
|
10164 |
* // => a floating-point number between 1.2 and 5.2
|
|
|
10165 |
*/
|
|
|
10166 |
function random(min, max, floating) {
|
|
498
|
10167 |
if (floating && isIterateeCall(min, max, floating)) {
|
|
|
10168 |
max = floating = undefined;
|
|
|
10169 |
}
|
|
442
|
10170 |
var noMin = min == null,
|
|
|
10171 |
noMax = max == null;
|
|
|
10172 |
|
|
|
10173 |
if (floating == null) {
|
|
498
|
10174 |
if (noMax && typeof min == 'boolean') {
|
|
442
|
10175 |
floating = min;
|
|
|
10176 |
min = 1;
|
|
|
10177 |
}
|
|
498
|
10178 |
else if (typeof max == 'boolean') {
|
|
442
|
10179 |
floating = max;
|
|
|
10180 |
noMax = true;
|
|
|
10181 |
}
|
|
|
10182 |
}
|
|
|
10183 |
if (noMin && noMax) {
|
|
|
10184 |
max = 1;
|
|
498
|
10185 |
noMax = false;
|
|
442
|
10186 |
}
|
|
|
10187 |
min = +min || 0;
|
|
|
10188 |
if (noMax) {
|
|
|
10189 |
max = min;
|
|
|
10190 |
min = 0;
|
|
|
10191 |
} else {
|
|
|
10192 |
max = +max || 0;
|
|
|
10193 |
}
|
|
|
10194 |
if (floating || min % 1 || max % 1) {
|
|
|
10195 |
var rand = nativeRandom();
|
|
498
|
10196 |
return nativeMin(min + (rand * (max - min + parseFloat('1e-' + ((rand + '').length - 1)))), max);
|
|
442
|
10197 |
}
|
|
|
10198 |
return baseRandom(min, max);
|
|
|
10199 |
}
|
|
|
10200 |
|
|
498
|
10201 |
/*------------------------------------------------------------------------*/
|
|
|
10202 |
|
|
|
10203 |
/**
|
|
|
10204 |
* Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).
|
|
|
10205 |
*
|
|
|
10206 |
* @static
|
|
|
10207 |
* @memberOf _
|
|
|
10208 |
* @category String
|
|
|
10209 |
* @param {string} [string=''] The string to convert.
|
|
|
10210 |
* @returns {string} Returns the camel cased string.
|
|
|
10211 |
* @example
|
|
|
10212 |
*
|
|
|
10213 |
* _.camelCase('Foo Bar');
|
|
|
10214 |
* // => 'fooBar'
|
|
|
10215 |
*
|
|
|
10216 |
* _.camelCase('--foo-bar');
|
|
|
10217 |
* // => 'fooBar'
|
|
|
10218 |
*
|
|
|
10219 |
* _.camelCase('__foo_bar__');
|
|
|
10220 |
* // => 'fooBar'
|
|
|
10221 |
*/
|
|
|
10222 |
var camelCase = createCompounder(function(result, word, index) {
|
|
|
10223 |
word = word.toLowerCase();
|
|
|
10224 |
return result + (index ? (word.charAt(0).toUpperCase() + word.slice(1)) : word);
|
|
|
10225 |
});
|
|
|
10226 |
|
|
|
10227 |
/**
|
|
|
10228 |
* Capitalizes the first character of `string`.
|
|
|
10229 |
*
|
|
|
10230 |
* @static
|
|
|
10231 |
* @memberOf _
|
|
|
10232 |
* @category String
|
|
|
10233 |
* @param {string} [string=''] The string to capitalize.
|
|
|
10234 |
* @returns {string} Returns the capitalized string.
|
|
|
10235 |
* @example
|
|
|
10236 |
*
|
|
|
10237 |
* _.capitalize('fred');
|
|
|
10238 |
* // => 'Fred'
|
|
|
10239 |
*/
|
|
|
10240 |
function capitalize(string) {
|
|
|
10241 |
string = baseToString(string);
|
|
|
10242 |
return string && (string.charAt(0).toUpperCase() + string.slice(1));
|
|
|
10243 |
}
|
|
|
10244 |
|
|
|
10245 |
/**
|
|
|
10246 |
* Deburrs `string` by converting [latin-1 supplementary letters](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)
|
|
|
10247 |
* to basic latin letters and removing [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).
|
|
|
10248 |
*
|
|
|
10249 |
* @static
|
|
|
10250 |
* @memberOf _
|
|
|
10251 |
* @category String
|
|
|
10252 |
* @param {string} [string=''] The string to deburr.
|
|
|
10253 |
* @returns {string} Returns the deburred string.
|
|
|
10254 |
* @example
|
|
|
10255 |
*
|
|
|
10256 |
* _.deburr('déjà vu');
|
|
|
10257 |
* // => 'deja vu'
|
|
|
10258 |
*/
|
|
|
10259 |
function deburr(string) {
|
|
|
10260 |
string = baseToString(string);
|
|
|
10261 |
return string && string.replace(reLatin1, deburrLetter).replace(reComboMark, '');
|
|
|
10262 |
}
|
|
|
10263 |
|
|
|
10264 |
/**
|
|
|
10265 |
* Checks if `string` ends with the given target string.
|
|
|
10266 |
*
|
|
|
10267 |
* @static
|
|
|
10268 |
* @memberOf _
|
|
|
10269 |
* @category String
|
|
|
10270 |
* @param {string} [string=''] The string to search.
|
|
|
10271 |
* @param {string} [target] The string to search for.
|
|
|
10272 |
* @param {number} [position=string.length] The position to search from.
|
|
|
10273 |
* @returns {boolean} Returns `true` if `string` ends with `target`, else `false`.
|
|
|
10274 |
* @example
|
|
|
10275 |
*
|
|
|
10276 |
* _.endsWith('abc', 'c');
|
|
|
10277 |
* // => true
|
|
|
10278 |
*
|
|
|
10279 |
* _.endsWith('abc', 'b');
|
|
|
10280 |
* // => false
|
|
|
10281 |
*
|
|
|
10282 |
* _.endsWith('abc', 'b', 2);
|
|
|
10283 |
* // => true
|
|
|
10284 |
*/
|
|
|
10285 |
function endsWith(string, target, position) {
|
|
|
10286 |
string = baseToString(string);
|
|
|
10287 |
target = (target + '');
|
|
|
10288 |
|
|
|
10289 |
var length = string.length;
|
|
|
10290 |
position = position === undefined
|
|
|
10291 |
? length
|
|
|
10292 |
: nativeMin(position < 0 ? 0 : (+position || 0), length);
|
|
|
10293 |
|
|
|
10294 |
position -= target.length;
|
|
|
10295 |
return position >= 0 && string.indexOf(target, position) == position;
|
|
|
10296 |
}
|
|
|
10297 |
|
|
|
10298 |
/**
|
|
|
10299 |
* Converts the characters "&", "<", ">", '"', "'", and "\`", in `string` to
|
|
|
10300 |
* their corresponding HTML entities.
|
|
|
10301 |
*
|
|
|
10302 |
* **Note:** No other characters are escaped. To escape additional characters
|
|
|
10303 |
* use a third-party library like [_he_](https://mths.be/he).
|
|
|
10304 |
*
|
|
|
10305 |
* Though the ">" character is escaped for symmetry, characters like
|
|
|
10306 |
* ">" and "/" don't need escaping in HTML and have no special meaning
|
|
|
10307 |
* unless they're part of a tag or unquoted attribute value.
|
|
|
10308 |
* See [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)
|
|
|
10309 |
* (under "semi-related fun fact") for more details.
|
|
|
10310 |
*
|
|
|
10311 |
* Backticks are escaped because in Internet Explorer < 9, they can break out
|
|
|
10312 |
* of attribute values or HTML comments. See [#59](https://html5sec.org/#59),
|
|
|
10313 |
* [#102](https://html5sec.org/#102), [#108](https://html5sec.org/#108), and
|
|
|
10314 |
* [#133](https://html5sec.org/#133) of the [HTML5 Security Cheatsheet](https://html5sec.org/)
|
|
|
10315 |
* for more details.
|
|
|
10316 |
*
|
|
|
10317 |
* When working with HTML you should always [quote attribute values](http://wonko.com/post/html-escaping)
|
|
|
10318 |
* to reduce XSS vectors.
|
|
|
10319 |
*
|
|
|
10320 |
* @static
|
|
|
10321 |
* @memberOf _
|
|
|
10322 |
* @category String
|
|
|
10323 |
* @param {string} [string=''] The string to escape.
|
|
|
10324 |
* @returns {string} Returns the escaped string.
|
|
|
10325 |
* @example
|
|
|
10326 |
*
|
|
|
10327 |
* _.escape('fred, barney, & pebbles');
|
|
|
10328 |
* // => 'fred, barney, & pebbles'
|
|
|
10329 |
*/
|
|
|
10330 |
function escape(string) {
|
|
|
10331 |
// Reset `lastIndex` because in IE < 9 `String#replace` does not.
|
|
|
10332 |
string = baseToString(string);
|
|
|
10333 |
return (string && reHasUnescapedHtml.test(string))
|
|
|
10334 |
? string.replace(reUnescapedHtml, escapeHtmlChar)
|
|
|
10335 |
: string;
|
|
|
10336 |
}
|
|
|
10337 |
|
|
|
10338 |
/**
|
|
|
10339 |
* Escapes the `RegExp` special characters "\", "/", "^", "$", ".", "|", "?",
|
|
|
10340 |
* "*", "+", "(", ")", "[", "]", "{" and "}" in `string`.
|
|
|
10341 |
*
|
|
|
10342 |
* @static
|
|
|
10343 |
* @memberOf _
|
|
|
10344 |
* @category String
|
|
|
10345 |
* @param {string} [string=''] The string to escape.
|
|
|
10346 |
* @returns {string} Returns the escaped string.
|
|
|
10347 |
* @example
|
|
|
10348 |
*
|
|
|
10349 |
* _.escapeRegExp('[lodash](https://lodash.com/)');
|
|
|
10350 |
* // => '\[lodash\]\(https:\/\/lodash\.com\/\)'
|
|
|
10351 |
*/
|
|
|
10352 |
function escapeRegExp(string) {
|
|
|
10353 |
string = baseToString(string);
|
|
|
10354 |
return (string && reHasRegExpChars.test(string))
|
|
|
10355 |
? string.replace(reRegExpChars, escapeRegExpChar)
|
|
|
10356 |
: (string || '(?:)');
|
|
|
10357 |
}
|
|
|
10358 |
|
|
|
10359 |
/**
|
|
|
10360 |
* Converts `string` to [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).
|
|
|
10361 |
*
|
|
|
10362 |
* @static
|
|
|
10363 |
* @memberOf _
|
|
|
10364 |
* @category String
|
|
|
10365 |
* @param {string} [string=''] The string to convert.
|
|
|
10366 |
* @returns {string} Returns the kebab cased string.
|
|
|
10367 |
* @example
|
|
|
10368 |
*
|
|
|
10369 |
* _.kebabCase('Foo Bar');
|
|
|
10370 |
* // => 'foo-bar'
|
|
|
10371 |
*
|
|
|
10372 |
* _.kebabCase('fooBar');
|
|
|
10373 |
* // => 'foo-bar'
|
|
|
10374 |
*
|
|
|
10375 |
* _.kebabCase('__foo_bar__');
|
|
|
10376 |
* // => 'foo-bar'
|
|
|
10377 |
*/
|
|
|
10378 |
var kebabCase = createCompounder(function(result, word, index) {
|
|
|
10379 |
return result + (index ? '-' : '') + word.toLowerCase();
|
|
|
10380 |
});
|
|
|
10381 |
|
|
|
10382 |
/**
|
|
|
10383 |
* Pads `string` on the left and right sides if it's shorter than `length`.
|
|
|
10384 |
* Padding characters are truncated if they can't be evenly divided by `length`.
|
|
|
10385 |
*
|
|
|
10386 |
* @static
|
|
|
10387 |
* @memberOf _
|
|
|
10388 |
* @category String
|
|
|
10389 |
* @param {string} [string=''] The string to pad.
|
|
|
10390 |
* @param {number} [length=0] The padding length.
|
|
|
10391 |
* @param {string} [chars=' '] The string used as padding.
|
|
|
10392 |
* @returns {string} Returns the padded string.
|
|
|
10393 |
* @example
|
|
|
10394 |
*
|
|
|
10395 |
* _.pad('abc', 8);
|
|
|
10396 |
* // => ' abc '
|
|
|
10397 |
*
|
|
|
10398 |
* _.pad('abc', 8, '_-');
|
|
|
10399 |
* // => '_-abc_-_'
|
|
|
10400 |
*
|
|
|
10401 |
* _.pad('abc', 3);
|
|
|
10402 |
* // => 'abc'
|
|
|
10403 |
*/
|
|
|
10404 |
function pad(string, length, chars) {
|
|
|
10405 |
string = baseToString(string);
|
|
|
10406 |
length = +length;
|
|
|
10407 |
|
|
|
10408 |
var strLength = string.length;
|
|
|
10409 |
if (strLength >= length || !nativeIsFinite(length)) {
|
|
|
10410 |
return string;
|
|
|
10411 |
}
|
|
|
10412 |
var mid = (length - strLength) / 2,
|
|
|
10413 |
leftLength = nativeFloor(mid),
|
|
|
10414 |
rightLength = nativeCeil(mid);
|
|
|
10415 |
|
|
|
10416 |
chars = createPadding('', rightLength, chars);
|
|
|
10417 |
return chars.slice(0, leftLength) + string + chars;
|
|
|
10418 |
}
|
|
|
10419 |
|
|
|
10420 |
/**
|
|
|
10421 |
* Pads `string` on the left side if it's shorter than `length`. Padding
|
|
|
10422 |
* characters are truncated if they exceed `length`.
|
|
|
10423 |
*
|
|
|
10424 |
* @static
|
|
|
10425 |
* @memberOf _
|
|
|
10426 |
* @category String
|
|
|
10427 |
* @param {string} [string=''] The string to pad.
|
|
|
10428 |
* @param {number} [length=0] The padding length.
|
|
|
10429 |
* @param {string} [chars=' '] The string used as padding.
|
|
|
10430 |
* @returns {string} Returns the padded string.
|
|
|
10431 |
* @example
|
|
|
10432 |
*
|
|
|
10433 |
* _.padLeft('abc', 6);
|
|
|
10434 |
* // => ' abc'
|
|
|
10435 |
*
|
|
|
10436 |
* _.padLeft('abc', 6, '_-');
|
|
|
10437 |
* // => '_-_abc'
|
|
|
10438 |
*
|
|
|
10439 |
* _.padLeft('abc', 3);
|
|
|
10440 |
* // => 'abc'
|
|
|
10441 |
*/
|
|
|
10442 |
var padLeft = createPadDir();
|
|
|
10443 |
|
|
|
10444 |
/**
|
|
|
10445 |
* Pads `string` on the right side if it's shorter than `length`. Padding
|
|
|
10446 |
* characters are truncated if they exceed `length`.
|
|
|
10447 |
*
|
|
|
10448 |
* @static
|
|
|
10449 |
* @memberOf _
|
|
|
10450 |
* @category String
|
|
|
10451 |
* @param {string} [string=''] The string to pad.
|
|
|
10452 |
* @param {number} [length=0] The padding length.
|
|
|
10453 |
* @param {string} [chars=' '] The string used as padding.
|
|
|
10454 |
* @returns {string} Returns the padded string.
|
|
|
10455 |
* @example
|
|
|
10456 |
*
|
|
|
10457 |
* _.padRight('abc', 6);
|
|
|
10458 |
* // => 'abc '
|
|
|
10459 |
*
|
|
|
10460 |
* _.padRight('abc', 6, '_-');
|
|
|
10461 |
* // => 'abc_-_'
|
|
|
10462 |
*
|
|
|
10463 |
* _.padRight('abc', 3);
|
|
|
10464 |
* // => 'abc'
|
|
|
10465 |
*/
|
|
|
10466 |
var padRight = createPadDir(true);
|
|
|
10467 |
|
|
|
10468 |
/**
|
|
|
10469 |
* Converts `string` to an integer of the specified radix. If `radix` is
|
|
|
10470 |
* `undefined` or `0`, a `radix` of `10` is used unless `value` is a hexadecimal,
|
|
|
10471 |
* in which case a `radix` of `16` is used.
|
|
|
10472 |
*
|
|
|
10473 |
* **Note:** This method aligns with the [ES5 implementation](https://es5.github.io/#E)
|
|
|
10474 |
* of `parseInt`.
|
|
|
10475 |
*
|
|
|
10476 |
* @static
|
|
|
10477 |
* @memberOf _
|
|
|
10478 |
* @category String
|
|
|
10479 |
* @param {string} string The string to convert.
|
|
|
10480 |
* @param {number} [radix] The radix to interpret `value` by.
|
|
|
10481 |
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
|
|
|
10482 |
* @returns {number} Returns the converted integer.
|
|
|
10483 |
* @example
|
|
|
10484 |
*
|
|
|
10485 |
* _.parseInt('08');
|
|
|
10486 |
* // => 8
|
|
|
10487 |
*
|
|
|
10488 |
* _.map(['6', '08', '10'], _.parseInt);
|
|
|
10489 |
* // => [6, 8, 10]
|
|
|
10490 |
*/
|
|
|
10491 |
function parseInt(string, radix, guard) {
|
|
|
10492 |
// Firefox < 21 and Opera < 15 follow ES3 for `parseInt`.
|
|
|
10493 |
// Chrome fails to trim leading <BOM> whitespace characters.
|
|
|
10494 |
// See https://code.google.com/p/v8/issues/detail?id=3109 for more details.
|
|
|
10495 |
if (guard ? isIterateeCall(string, radix, guard) : radix == null) {
|
|
|
10496 |
radix = 0;
|
|
|
10497 |
} else if (radix) {
|
|
|
10498 |
radix = +radix;
|
|
|
10499 |
}
|
|
|
10500 |
string = trim(string);
|
|
|
10501 |
return nativeParseInt(string, radix || (reHasHexPrefix.test(string) ? 16 : 10));
|
|
|
10502 |
}
|
|
|
10503 |
|
|
|
10504 |
/**
|
|
|
10505 |
* Repeats the given string `n` times.
|
|
|
10506 |
*
|
|
|
10507 |
* @static
|
|
|
10508 |
* @memberOf _
|
|
|
10509 |
* @category String
|
|
|
10510 |
* @param {string} [string=''] The string to repeat.
|
|
|
10511 |
* @param {number} [n=0] The number of times to repeat the string.
|
|
|
10512 |
* @returns {string} Returns the repeated string.
|
|
|
10513 |
* @example
|
|
|
10514 |
*
|
|
|
10515 |
* _.repeat('*', 3);
|
|
|
10516 |
* // => '***'
|
|
|
10517 |
*
|
|
|
10518 |
* _.repeat('abc', 2);
|
|
|
10519 |
* // => 'abcabc'
|
|
|
10520 |
*
|
|
|
10521 |
* _.repeat('abc', 0);
|
|
|
10522 |
* // => ''
|
|
|
10523 |
*/
|
|
|
10524 |
function repeat(string, n) {
|
|
|
10525 |
var result = '';
|
|
|
10526 |
string = baseToString(string);
|
|
|
10527 |
n = +n;
|
|
|
10528 |
if (n < 1 || !string || !nativeIsFinite(n)) {
|
|
|
10529 |
return result;
|
|
|
10530 |
}
|
|
|
10531 |
// Leverage the exponentiation by squaring algorithm for a faster repeat.
|
|
|
10532 |
// See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.
|
|
|
10533 |
do {
|
|
|
10534 |
if (n % 2) {
|
|
|
10535 |
result += string;
|
|
|
10536 |
}
|
|
|
10537 |
n = nativeFloor(n / 2);
|
|
|
10538 |
string += string;
|
|
|
10539 |
} while (n);
|
|
|
10540 |
|
|
|
10541 |
return result;
|
|
|
10542 |
}
|
|
|
10543 |
|
|
|
10544 |
/**
|
|
|
10545 |
* Converts `string` to [snake case](https://en.wikipedia.org/wiki/Snake_case).
|
|
|
10546 |
*
|
|
|
10547 |
* @static
|
|
|
10548 |
* @memberOf _
|
|
|
10549 |
* @category String
|
|
|
10550 |
* @param {string} [string=''] The string to convert.
|
|
|
10551 |
* @returns {string} Returns the snake cased string.
|
|
|
10552 |
* @example
|
|
|
10553 |
*
|
|
|
10554 |
* _.snakeCase('Foo Bar');
|
|
|
10555 |
* // => 'foo_bar'
|
|
|
10556 |
*
|
|
|
10557 |
* _.snakeCase('fooBar');
|
|
|
10558 |
* // => 'foo_bar'
|
|
|
10559 |
*
|
|
|
10560 |
* _.snakeCase('--foo-bar');
|
|
|
10561 |
* // => 'foo_bar'
|
|
|
10562 |
*/
|
|
|
10563 |
var snakeCase = createCompounder(function(result, word, index) {
|
|
|
10564 |
return result + (index ? '_' : '') + word.toLowerCase();
|
|
|
10565 |
});
|
|
|
10566 |
|
|
|
10567 |
/**
|
|
|
10568 |
* Converts `string` to [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).
|
|
|
10569 |
*
|
|
|
10570 |
* @static
|
|
|
10571 |
* @memberOf _
|
|
|
10572 |
* @category String
|
|
|
10573 |
* @param {string} [string=''] The string to convert.
|
|
|
10574 |
* @returns {string} Returns the start cased string.
|
|
|
10575 |
* @example
|
|
|
10576 |
*
|
|
|
10577 |
* _.startCase('--foo-bar');
|
|
|
10578 |
* // => 'Foo Bar'
|
|
|
10579 |
*
|
|
|
10580 |
* _.startCase('fooBar');
|
|
|
10581 |
* // => 'Foo Bar'
|
|
|
10582 |
*
|
|
|
10583 |
* _.startCase('__foo_bar__');
|
|
|
10584 |
* // => 'Foo Bar'
|
|
|
10585 |
*/
|
|
|
10586 |
var startCase = createCompounder(function(result, word, index) {
|
|
|
10587 |
return result + (index ? ' ' : '') + (word.charAt(0).toUpperCase() + word.slice(1));
|
|
|
10588 |
});
|
|
|
10589 |
|
|
|
10590 |
/**
|
|
|
10591 |
* Checks if `string` starts with the given target string.
|
|
|
10592 |
*
|
|
|
10593 |
* @static
|
|
|
10594 |
* @memberOf _
|
|
|
10595 |
* @category String
|
|
|
10596 |
* @param {string} [string=''] The string to search.
|
|
|
10597 |
* @param {string} [target] The string to search for.
|
|
|
10598 |
* @param {number} [position=0] The position to search from.
|
|
|
10599 |
* @returns {boolean} Returns `true` if `string` starts with `target`, else `false`.
|
|
|
10600 |
* @example
|
|
|
10601 |
*
|
|
|
10602 |
* _.startsWith('abc', 'a');
|
|
|
10603 |
* // => true
|
|
|
10604 |
*
|
|
|
10605 |
* _.startsWith('abc', 'b');
|
|
|
10606 |
* // => false
|
|
|
10607 |
*
|
|
|
10608 |
* _.startsWith('abc', 'b', 1);
|
|
|
10609 |
* // => true
|
|
|
10610 |
*/
|
|
|
10611 |
function startsWith(string, target, position) {
|
|
|
10612 |
string = baseToString(string);
|
|
|
10613 |
position = position == null
|
|
|
10614 |
? 0
|
|
|
10615 |
: nativeMin(position < 0 ? 0 : (+position || 0), string.length);
|
|
|
10616 |
|
|
|
10617 |
return string.lastIndexOf(target, position) == position;
|
|
|
10618 |
}
|
|
|
10619 |
|
|
|
10620 |
/**
|
|
|
10621 |
* Creates a compiled template function that can interpolate data properties
|
|
|
10622 |
* in "interpolate" delimiters, HTML-escape interpolated data properties in
|
|
|
10623 |
* "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data
|
|
|
10624 |
* properties may be accessed as free variables in the template. If a setting
|
|
|
10625 |
* object is provided it takes precedence over `_.templateSettings` values.
|
|
|
10626 |
*
|
|
|
10627 |
* **Note:** In the development build `_.template` utilizes
|
|
|
10628 |
* [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)
|
|
|
10629 |
* for easier debugging.
|
|
|
10630 |
*
|
|
|
10631 |
* For more information on precompiling templates see
|
|
|
10632 |
* [lodash's custom builds documentation](https://lodash.com/custom-builds).
|
|
|
10633 |
*
|
|
|
10634 |
* For more information on Chrome extension sandboxes see
|
|
|
10635 |
* [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).
|
|
|
10636 |
*
|
|
|
10637 |
* @static
|
|
|
10638 |
* @memberOf _
|
|
|
10639 |
* @category String
|
|
|
10640 |
* @param {string} [string=''] The template string.
|
|
442
|
10641 |
* @param {Object} [options] The options object.
|
|
498
|
10642 |
* @param {RegExp} [options.escape] The HTML "escape" delimiter.
|
|
442
|
10643 |
* @param {RegExp} [options.evaluate] The "evaluate" delimiter.
|
|
498
|
10644 |
* @param {Object} [options.imports] An object to import into the template as free variables.
|
|
442
|
10645 |
* @param {RegExp} [options.interpolate] The "interpolate" delimiter.
|
|
498
|
10646 |
* @param {string} [options.sourceURL] The sourceURL of the template's compiled source.
|
|
|
10647 |
* @param {string} [options.variable] The data object variable name.
|
|
|
10648 |
* @param- {Object} [otherOptions] Enables the legacy `options` param signature.
|
|
|
10649 |
* @returns {Function} Returns the compiled template function.
|
|
442
|
10650 |
* @example
|
|
|
10651 |
*
|
|
|
10652 |
* // using the "interpolate" delimiter to create a compiled template
|
|
498
|
10653 |
* var compiled = _.template('hello <%= user %>!');
|
|
|
10654 |
* compiled({ 'user': 'fred' });
|
|
|
10655 |
* // => 'hello fred!'
|
|
|
10656 |
*
|
|
|
10657 |
* // using the HTML "escape" delimiter to escape data property values
|
|
|
10658 |
* var compiled = _.template('<b><%- value %></b>');
|
|
|
10659 |
* compiled({ 'value': '<script>' });
|
|
442
|
10660 |
* // => '<b><script></b>'
|
|
|
10661 |
*
|
|
498
|
10662 |
* // using the "evaluate" delimiter to execute JavaScript and generate HTML
|
|
|
10663 |
* var compiled = _.template('<% _.forEach(users, function(user) { %><li><%- user %></li><% }); %>');
|
|
|
10664 |
* compiled({ 'users': ['fred', 'barney'] });
|
|
442
|
10665 |
* // => '<li>fred</li><li>barney</li>'
|
|
|
10666 |
*
|
|
|
10667 |
* // using the internal `print` function in "evaluate" delimiters
|
|
498
|
10668 |
* var compiled = _.template('<% print("hello " + user); %>!');
|
|
|
10669 |
* compiled({ 'user': 'barney' });
|
|
442
|
10670 |
* // => 'hello barney!'
|
|
|
10671 |
*
|
|
498
|
10672 |
* // using the ES delimiter as an alternative to the default "interpolate" delimiter
|
|
|
10673 |
* var compiled = _.template('hello ${ user }!');
|
|
|
10674 |
* compiled({ 'user': 'pebbles' });
|
|
|
10675 |
* // => 'hello pebbles!'
|
|
|
10676 |
*
|
|
|
10677 |
* // using custom template delimiters
|
|
|
10678 |
* _.templateSettings.interpolate = /{{([\s\S]+?)}}/g;
|
|
|
10679 |
* var compiled = _.template('hello {{ user }}!');
|
|
|
10680 |
* compiled({ 'user': 'mustache' });
|
|
442
|
10681 |
* // => 'hello mustache!'
|
|
|
10682 |
*
|
|
498
|
10683 |
* // using backslashes to treat delimiters as plain text
|
|
|
10684 |
* var compiled = _.template('<%= "\\<%- value %\\>" %>');
|
|
|
10685 |
* compiled({ 'value': 'ignored' });
|
|
|
10686 |
* // => '<%- value %>'
|
|
|
10687 |
*
|
|
|
10688 |
* // using the `imports` option to import `jQuery` as `jq`
|
|
|
10689 |
* var text = '<% jq.each(users, function(user) { %><li><%- user %></li><% }); %>';
|
|
|
10690 |
* var compiled = _.template(text, { 'imports': { 'jq': jQuery } });
|
|
|
10691 |
* compiled({ 'users': ['fred', 'barney'] });
|
|
442
|
10692 |
* // => '<li>fred</li><li>barney</li>'
|
|
|
10693 |
*
|
|
|
10694 |
* // using the `sourceURL` option to specify a custom sourceURL for the template
|
|
498
|
10695 |
* var compiled = _.template('hello <%= user %>!', { 'sourceURL': '/basic/greeting.jst' });
|
|
442
|
10696 |
* compiled(data);
|
|
|
10697 |
* // => find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector
|
|
|
10698 |
*
|
|
|
10699 |
* // using the `variable` option to ensure a with-statement isn't used in the compiled template
|
|
498
|
10700 |
* var compiled = _.template('hi <%= data.user %>!', { 'variable': 'data' });
|
|
442
|
10701 |
* compiled.source;
|
|
|
10702 |
* // => function(data) {
|
|
498
|
10703 |
* // var __t, __p = '';
|
|
|
10704 |
* // __p += 'hi ' + ((__t = ( data.user )) == null ? '' : __t) + '!';
|
|
|
10705 |
* // return __p;
|
|
|
10706 |
* // }
|
|
442
|
10707 |
*
|
|
|
10708 |
* // using the `source` property to inline compiled templates for meaningful
|
|
|
10709 |
* // line numbers in error messages and a stack trace
|
|
|
10710 |
* fs.writeFileSync(path.join(cwd, 'jst.js'), '\
|
|
|
10711 |
* var JST = {\
|
|
|
10712 |
* "main": ' + _.template(mainText).source + '\
|
|
|
10713 |
* };\
|
|
|
10714 |
* ');
|
|
|
10715 |
*/
|
|
498
|
10716 |
function template(string, options, otherOptions) {
|
|
|
10717 |
// Based on John Resig's `tmpl` implementation (http://ejohn.org/blog/javascript-micro-templating/)
|
|
|
10718 |
// and Laura Doktorova's doT.js (https://github.com/olado/doT).
|
|
442
|
10719 |
var settings = lodash.templateSettings;
|
|
498
|
10720 |
|
|
|
10721 |
if (otherOptions && isIterateeCall(string, options, otherOptions)) {
|
|
|
10722 |
options = otherOptions = undefined;
|
|
|
10723 |
}
|
|
|
10724 |
string = baseToString(string);
|
|
|
10725 |
options = assignWith(baseAssign({}, otherOptions || options), settings, assignOwnDefaults);
|
|
|
10726 |
|
|
|
10727 |
var imports = assignWith(baseAssign({}, options.imports), settings.imports, assignOwnDefaults),
|
|
442
|
10728 |
importsKeys = keys(imports),
|
|
498
|
10729 |
importsValues = baseValues(imports, importsKeys);
|
|
|
10730 |
|
|
|
10731 |
var isEscaping,
|
|
|
10732 |
isEvaluating,
|
|
442
|
10733 |
index = 0,
|
|
|
10734 |
interpolate = options.interpolate || reNoMatch,
|
|
|
10735 |
source = "__p += '";
|
|
|
10736 |
|
|
498
|
10737 |
// Compile the regexp to match each delimiter.
|
|
442
|
10738 |
var reDelimiters = RegExp(
|
|
|
10739 |
(options.escape || reNoMatch).source + '|' +
|
|
|
10740 |
interpolate.source + '|' +
|
|
|
10741 |
(interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' +
|
|
|
10742 |
(options.evaluate || reNoMatch).source + '|$'
|
|
|
10743 |
, 'g');
|
|
|
10744 |
|
|
498
|
10745 |
// Use a sourceURL for easier debugging.
|
|
|
10746 |
var sourceURL = '//# sourceURL=' +
|
|
|
10747 |
('sourceURL' in options
|
|
|
10748 |
? options.sourceURL
|
|
|
10749 |
: ('lodash.templateSources[' + (++templateCounter) + ']')
|
|
|
10750 |
) + '\n';
|
|
|
10751 |
|
|
|
10752 |
string.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {
|
|
442
|
10753 |
interpolateValue || (interpolateValue = esTemplateValue);
|
|
|
10754 |
|
|
498
|
10755 |
// Escape characters that can't be included in string literals.
|
|
|
10756 |
source += string.slice(index, offset).replace(reUnescapedString, escapeStringChar);
|
|
|
10757 |
|
|
|
10758 |
// Replace delimiters with snippets.
|
|
442
|
10759 |
if (escapeValue) {
|
|
498
|
10760 |
isEscaping = true;
|
|
442
|
10761 |
source += "' +\n__e(" + escapeValue + ") +\n'";
|
|
|
10762 |
}
|
|
|
10763 |
if (evaluateValue) {
|
|
|
10764 |
isEvaluating = true;
|
|
|
10765 |
source += "';\n" + evaluateValue + ";\n__p += '";
|
|
|
10766 |
}
|
|
|
10767 |
if (interpolateValue) {
|
|
|
10768 |
source += "' +\n((__t = (" + interpolateValue + ")) == null ? '' : __t) +\n'";
|
|
|
10769 |
}
|
|
|
10770 |
index = offset + match.length;
|
|
|
10771 |
|
|
498
|
10772 |
// The JS engine embedded in Adobe products requires returning the `match`
|
|
|
10773 |
// string in order to produce the correct `offset` value.
|
|
442
|
10774 |
return match;
|
|
|
10775 |
});
|
|
|
10776 |
|
|
|
10777 |
source += "';\n";
|
|
|
10778 |
|
|
498
|
10779 |
// If `variable` is not specified wrap a with-statement around the generated
|
|
|
10780 |
// code to add the data object to the top of the scope chain.
|
|
|
10781 |
var variable = options.variable;
|
|
|
10782 |
if (!variable) {
|
|
|
10783 |
source = 'with (obj) {\n' + source + '\n}\n';
|
|
|
10784 |
}
|
|
|
10785 |
// Cleanup code by stripping empty strings.
|
|
442
|
10786 |
source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source)
|
|
|
10787 |
.replace(reEmptyStringMiddle, '$1')
|
|
|
10788 |
.replace(reEmptyStringTrailing, '$1;');
|
|
|
10789 |
|
|
498
|
10790 |
// Frame code as the function body.
|
|
|
10791 |
source = 'function(' + (variable || 'obj') + ') {\n' +
|
|
|
10792 |
(variable
|
|
|
10793 |
? ''
|
|
|
10794 |
: 'obj || (obj = {});\n'
|
|
|
10795 |
) +
|
|
|
10796 |
"var __t, __p = ''" +
|
|
|
10797 |
(isEscaping
|
|
|
10798 |
? ', __e = _.escape'
|
|
|
10799 |
: ''
|
|
|
10800 |
) +
|
|
442
|
10801 |
(isEvaluating
|
|
|
10802 |
? ', __j = Array.prototype.join;\n' +
|
|
|
10803 |
"function print() { __p += __j.call(arguments, '') }\n"
|
|
|
10804 |
: ';\n'
|
|
|
10805 |
) +
|
|
|
10806 |
source +
|
|
|
10807 |
'return __p\n}';
|
|
|
10808 |
|
|
498
|
10809 |
var result = attempt(function() {
|
|
|
10810 |
return Function(importsKeys, sourceURL + 'return ' + source).apply(undefined, importsValues);
|
|
|
10811 |
});
|
|
|
10812 |
|
|
|
10813 |
// Provide the compiled function's source by its `toString` method or
|
|
|
10814 |
// the `source` property as a convenience for inlining compiled templates.
|
|
442
|
10815 |
result.source = source;
|
|
498
|
10816 |
if (isError(result)) {
|
|
|
10817 |
throw result;
|
|
442
|
10818 |
}
|
|
|
10819 |
return result;
|
|
|
10820 |
}
|
|
|
10821 |
|
|
|
10822 |
/**
|
|
498
|
10823 |
* Removes leading and trailing whitespace or specified characters from `string`.
|
|
|
10824 |
*
|
|
|
10825 |
* @static
|
|
|
10826 |
* @memberOf _
|
|
|
10827 |
* @category String
|
|
|
10828 |
* @param {string} [string=''] The string to trim.
|
|
|
10829 |
* @param {string} [chars=whitespace] The characters to trim.
|
|
|
10830 |
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
|
|
|
10831 |
* @returns {string} Returns the trimmed string.
|
|
|
10832 |
* @example
|
|
|
10833 |
*
|
|
|
10834 |
* _.trim(' abc ');
|
|
|
10835 |
* // => 'abc'
|
|
|
10836 |
*
|
|
|
10837 |
* _.trim('-_-abc-_-', '_-');
|
|
|
10838 |
* // => 'abc'
|
|
|
10839 |
*
|
|
|
10840 |
* _.map([' foo ', ' bar '], _.trim);
|
|
|
10841 |
* // => ['foo', 'bar']
|
|
|
10842 |
*/
|
|
|
10843 |
function trim(string, chars, guard) {
|
|
|
10844 |
var value = string;
|
|
|
10845 |
string = baseToString(string);
|
|
|
10846 |
if (!string) {
|
|
|
10847 |
return string;
|
|
|
10848 |
}
|
|
|
10849 |
if (guard ? isIterateeCall(value, chars, guard) : chars == null) {
|
|
|
10850 |
return string.slice(trimmedLeftIndex(string), trimmedRightIndex(string) + 1);
|
|
|
10851 |
}
|
|
|
10852 |
chars = (chars + '');
|
|
|
10853 |
return string.slice(charsLeftIndex(string, chars), charsRightIndex(string, chars) + 1);
|
|
|
10854 |
}
|
|
|
10855 |
|
|
|
10856 |
/**
|
|
|
10857 |
* Removes leading whitespace or specified characters from `string`.
|
|
|
10858 |
*
|
|
|
10859 |
* @static
|
|
|
10860 |
* @memberOf _
|
|
|
10861 |
* @category String
|
|
|
10862 |
* @param {string} [string=''] The string to trim.
|
|
|
10863 |
* @param {string} [chars=whitespace] The characters to trim.
|
|
|
10864 |
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
|
|
|
10865 |
* @returns {string} Returns the trimmed string.
|
|
|
10866 |
* @example
|
|
|
10867 |
*
|
|
|
10868 |
* _.trimLeft(' abc ');
|
|
|
10869 |
* // => 'abc '
|
|
|
10870 |
*
|
|
|
10871 |
* _.trimLeft('-_-abc-_-', '_-');
|
|
|
10872 |
* // => 'abc-_-'
|
|
|
10873 |
*/
|
|
|
10874 |
function trimLeft(string, chars, guard) {
|
|
|
10875 |
var value = string;
|
|
|
10876 |
string = baseToString(string);
|
|
|
10877 |
if (!string) {
|
|
|
10878 |
return string;
|
|
|
10879 |
}
|
|
|
10880 |
if (guard ? isIterateeCall(value, chars, guard) : chars == null) {
|
|
|
10881 |
return string.slice(trimmedLeftIndex(string));
|
|
|
10882 |
}
|
|
|
10883 |
return string.slice(charsLeftIndex(string, (chars + '')));
|
|
|
10884 |
}
|
|
|
10885 |
|
|
|
10886 |
/**
|
|
|
10887 |
* Removes trailing whitespace or specified characters from `string`.
|
|
|
10888 |
*
|
|
|
10889 |
* @static
|
|
|
10890 |
* @memberOf _
|
|
|
10891 |
* @category String
|
|
|
10892 |
* @param {string} [string=''] The string to trim.
|
|
|
10893 |
* @param {string} [chars=whitespace] The characters to trim.
|
|
|
10894 |
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
|
|
|
10895 |
* @returns {string} Returns the trimmed string.
|
|
|
10896 |
* @example
|
|
|
10897 |
*
|
|
|
10898 |
* _.trimRight(' abc ');
|
|
|
10899 |
* // => ' abc'
|
|
|
10900 |
*
|
|
|
10901 |
* _.trimRight('-_-abc-_-', '_-');
|
|
|
10902 |
* // => '-_-abc'
|
|
|
10903 |
*/
|
|
|
10904 |
function trimRight(string, chars, guard) {
|
|
|
10905 |
var value = string;
|
|
|
10906 |
string = baseToString(string);
|
|
|
10907 |
if (!string) {
|
|
|
10908 |
return string;
|
|
|
10909 |
}
|
|
|
10910 |
if (guard ? isIterateeCall(value, chars, guard) : chars == null) {
|
|
|
10911 |
return string.slice(0, trimmedRightIndex(string) + 1);
|
|
|
10912 |
}
|
|
|
10913 |
return string.slice(0, charsRightIndex(string, (chars + '')) + 1);
|
|
|
10914 |
}
|
|
|
10915 |
|
|
|
10916 |
/**
|
|
|
10917 |
* Truncates `string` if it's longer than the given maximum string length.
|
|
|
10918 |
* The last characters of the truncated string are replaced with the omission
|
|
|
10919 |
* string which defaults to "...".
|
|
|
10920 |
*
|
|
|
10921 |
* @static
|
|
|
10922 |
* @memberOf _
|
|
|
10923 |
* @category String
|
|
|
10924 |
* @param {string} [string=''] The string to truncate.
|
|
|
10925 |
* @param {Object|number} [options] The options object or maximum string length.
|
|
|
10926 |
* @param {number} [options.length=30] The maximum string length.
|
|
|
10927 |
* @param {string} [options.omission='...'] The string to indicate text is omitted.
|
|
|
10928 |
* @param {RegExp|string} [options.separator] The separator pattern to truncate to.
|
|
|
10929 |
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
|
|
|
10930 |
* @returns {string} Returns the truncated string.
|
|
|
10931 |
* @example
|
|
|
10932 |
*
|
|
|
10933 |
* _.trunc('hi-diddly-ho there, neighborino');
|
|
|
10934 |
* // => 'hi-diddly-ho there, neighbo...'
|
|
|
10935 |
*
|
|
|
10936 |
* _.trunc('hi-diddly-ho there, neighborino', 24);
|
|
|
10937 |
* // => 'hi-diddly-ho there, n...'
|
|
|
10938 |
*
|
|
|
10939 |
* _.trunc('hi-diddly-ho there, neighborino', {
|
|
|
10940 |
* 'length': 24,
|
|
|
10941 |
* 'separator': ' '
|
|
|
10942 |
* });
|
|
|
10943 |
* // => 'hi-diddly-ho there,...'
|
|
|
10944 |
*
|
|
|
10945 |
* _.trunc('hi-diddly-ho there, neighborino', {
|
|
|
10946 |
* 'length': 24,
|
|
|
10947 |
* 'separator': /,? +/
|
|
|
10948 |
* });
|
|
|
10949 |
* // => 'hi-diddly-ho there...'
|
|
|
10950 |
*
|
|
|
10951 |
* _.trunc('hi-diddly-ho there, neighborino', {
|
|
|
10952 |
* 'omission': ' [...]'
|
|
|
10953 |
* });
|
|
|
10954 |
* // => 'hi-diddly-ho there, neig [...]'
|
|
|
10955 |
*/
|
|
|
10956 |
function trunc(string, options, guard) {
|
|
|
10957 |
if (guard && isIterateeCall(string, options, guard)) {
|
|
|
10958 |
options = undefined;
|
|
|
10959 |
}
|
|
|
10960 |
var length = DEFAULT_TRUNC_LENGTH,
|
|
|
10961 |
omission = DEFAULT_TRUNC_OMISSION;
|
|
|
10962 |
|
|
|
10963 |
if (options != null) {
|
|
|
10964 |
if (isObject(options)) {
|
|
|
10965 |
var separator = 'separator' in options ? options.separator : separator;
|
|
|
10966 |
length = 'length' in options ? (+options.length || 0) : length;
|
|
|
10967 |
omission = 'omission' in options ? baseToString(options.omission) : omission;
|
|
|
10968 |
} else {
|
|
|
10969 |
length = +options || 0;
|
|
|
10970 |
}
|
|
|
10971 |
}
|
|
|
10972 |
string = baseToString(string);
|
|
|
10973 |
if (length >= string.length) {
|
|
|
10974 |
return string;
|
|
|
10975 |
}
|
|
|
10976 |
var end = length - omission.length;
|
|
|
10977 |
if (end < 1) {
|
|
|
10978 |
return omission;
|
|
|
10979 |
}
|
|
|
10980 |
var result = string.slice(0, end);
|
|
|
10981 |
if (separator == null) {
|
|
|
10982 |
return result + omission;
|
|
|
10983 |
}
|
|
|
10984 |
if (isRegExp(separator)) {
|
|
|
10985 |
if (string.slice(end).search(separator)) {
|
|
|
10986 |
var match,
|
|
|
10987 |
newEnd,
|
|
|
10988 |
substring = string.slice(0, end);
|
|
|
10989 |
|
|
|
10990 |
if (!separator.global) {
|
|
|
10991 |
separator = RegExp(separator.source, (reFlags.exec(separator) || '') + 'g');
|
|
|
10992 |
}
|
|
|
10993 |
separator.lastIndex = 0;
|
|
|
10994 |
while ((match = separator.exec(substring))) {
|
|
|
10995 |
newEnd = match.index;
|
|
|
10996 |
}
|
|
|
10997 |
result = result.slice(0, newEnd == null ? end : newEnd);
|
|
|
10998 |
}
|
|
|
10999 |
} else if (string.indexOf(separator, end) != end) {
|
|
|
11000 |
var index = result.lastIndexOf(separator);
|
|
|
11001 |
if (index > -1) {
|
|
|
11002 |
result = result.slice(0, index);
|
|
|
11003 |
}
|
|
|
11004 |
}
|
|
|
11005 |
return result + omission;
|
|
|
11006 |
}
|
|
|
11007 |
|
|
|
11008 |
/**
|
|
|
11009 |
* The inverse of `_.escape`; this method converts the HTML entities
|
|
|
11010 |
* `&`, `<`, `>`, `"`, `'`, and ``` in `string` to their
|
|
442
|
11011 |
* corresponding characters.
|
|
|
11012 |
*
|
|
498
|
11013 |
* **Note:** No other HTML entities are unescaped. To unescape additional HTML
|
|
|
11014 |
* entities use a third-party library like [_he_](https://mths.be/he).
|
|
|
11015 |
*
|
|
|
11016 |
* @static
|
|
|
11017 |
* @memberOf _
|
|
|
11018 |
* @category String
|
|
|
11019 |
* @param {string} [string=''] The string to unescape.
|
|
442
|
11020 |
* @returns {string} Returns the unescaped string.
|
|
|
11021 |
* @example
|
|
|
11022 |
*
|
|
498
|
11023 |
* _.unescape('fred, barney, & pebbles');
|
|
|
11024 |
* // => 'fred, barney, & pebbles'
|
|
442
|
11025 |
*/
|
|
|
11026 |
function unescape(string) {
|
|
498
|
11027 |
string = baseToString(string);
|
|
|
11028 |
return (string && reHasEscapedHtml.test(string))
|
|
|
11029 |
? string.replace(reEscapedHtml, unescapeHtmlChar)
|
|
|
11030 |
: string;
|
|
|
11031 |
}
|
|
|
11032 |
|
|
|
11033 |
/**
|
|
|
11034 |
* Splits `string` into an array of its words.
|
|
|
11035 |
*
|
|
|
11036 |
* @static
|
|
|
11037 |
* @memberOf _
|
|
|
11038 |
* @category String
|
|
|
11039 |
* @param {string} [string=''] The string to inspect.
|
|
|
11040 |
* @param {RegExp|string} [pattern] The pattern to match words.
|
|
|
11041 |
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
|
|
|
11042 |
* @returns {Array} Returns the words of `string`.
|
|
|
11043 |
* @example
|
|
|
11044 |
*
|
|
|
11045 |
* _.words('fred, barney, & pebbles');
|
|
|
11046 |
* // => ['fred', 'barney', 'pebbles']
|
|
|
11047 |
*
|
|
|
11048 |
* _.words('fred, barney, & pebbles', /[^, ]+/g);
|
|
|
11049 |
* // => ['fred', 'barney', '&', 'pebbles']
|
|
|
11050 |
*/
|
|
|
11051 |
function words(string, pattern, guard) {
|
|
|
11052 |
if (guard && isIterateeCall(string, pattern, guard)) {
|
|
|
11053 |
pattern = undefined;
|
|
|
11054 |
}
|
|
|
11055 |
string = baseToString(string);
|
|
|
11056 |
return string.match(pattern || reWords) || [];
|
|
|
11057 |
}
|
|
|
11058 |
|
|
|
11059 |
/*------------------------------------------------------------------------*/
|
|
|
11060 |
|
|
|
11061 |
/**
|
|
|
11062 |
* Attempts to invoke `func`, returning either the result or the caught error
|
|
|
11063 |
* object. Any additional arguments are provided to `func` when it's invoked.
|
|
|
11064 |
*
|
|
|
11065 |
* @static
|
|
|
11066 |
* @memberOf _
|
|
|
11067 |
* @category Utility
|
|
|
11068 |
* @param {Function} func The function to attempt.
|
|
|
11069 |
* @returns {*} Returns the `func` result or error object.
|
|
|
11070 |
* @example
|
|
|
11071 |
*
|
|
|
11072 |
* // avoid throwing errors for invalid selectors
|
|
|
11073 |
* var elements = _.attempt(function(selector) {
|
|
|
11074 |
* return document.querySelectorAll(selector);
|
|
|
11075 |
* }, '>_>');
|
|
|
11076 |
*
|
|
|
11077 |
* if (_.isError(elements)) {
|
|
|
11078 |
* elements = [];
|
|
|
11079 |
* }
|
|
|
11080 |
*/
|
|
|
11081 |
var attempt = restParam(function(func, args) {
|
|
|
11082 |
try {
|
|
|
11083 |
return func.apply(undefined, args);
|
|
|
11084 |
} catch(e) {
|
|
|
11085 |
return isError(e) ? e : new Error(e);
|
|
|
11086 |
}
|
|
|
11087 |
});
|
|
|
11088 |
|
|
|
11089 |
/**
|
|
|
11090 |
* Creates a function that invokes `func` with the `this` binding of `thisArg`
|
|
|
11091 |
* and arguments of the created function. If `func` is a property name the
|
|
|
11092 |
* created callback returns the property value for a given element. If `func`
|
|
|
11093 |
* is an object the created callback returns `true` for elements that contain
|
|
|
11094 |
* the equivalent object properties, otherwise it returns `false`.
|
|
|
11095 |
*
|
|
|
11096 |
* @static
|
|
|
11097 |
* @memberOf _
|
|
|
11098 |
* @alias iteratee
|
|
|
11099 |
* @category Utility
|
|
|
11100 |
* @param {*} [func=_.identity] The value to convert to a callback.
|
|
|
11101 |
* @param {*} [thisArg] The `this` binding of `func`.
|
|
|
11102 |
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
|
|
|
11103 |
* @returns {Function} Returns the callback.
|
|
|
11104 |
* @example
|
|
|
11105 |
*
|
|
|
11106 |
* var users = [
|
|
|
11107 |
* { 'user': 'barney', 'age': 36 },
|
|
|
11108 |
* { 'user': 'fred', 'age': 40 }
|
|
|
11109 |
* ];
|
|
|
11110 |
*
|
|
|
11111 |
* // wrap to create custom callback shorthands
|
|
|
11112 |
* _.callback = _.wrap(_.callback, function(callback, func, thisArg) {
|
|
|
11113 |
* var match = /^(.+?)__([gl]t)(.+)$/.exec(func);
|
|
|
11114 |
* if (!match) {
|
|
|
11115 |
* return callback(func, thisArg);
|
|
|
11116 |
* }
|
|
|
11117 |
* return function(object) {
|
|
|
11118 |
* return match[2] == 'gt'
|
|
|
11119 |
* ? object[match[1]] > match[3]
|
|
|
11120 |
* : object[match[1]] < match[3];
|
|
|
11121 |
* };
|
|
|
11122 |
* });
|
|
|
11123 |
*
|
|
|
11124 |
* _.filter(users, 'age__gt36');
|
|
|
11125 |
* // => [{ 'user': 'fred', 'age': 40 }]
|
|
|
11126 |
*/
|
|
|
11127 |
function callback(func, thisArg, guard) {
|
|
|
11128 |
if (guard && isIterateeCall(func, thisArg, guard)) {
|
|
|
11129 |
thisArg = undefined;
|
|
|
11130 |
}
|
|
|
11131 |
return isObjectLike(func)
|
|
|
11132 |
? matches(func)
|
|
|
11133 |
: baseCallback(func, thisArg);
|
|
|
11134 |
}
|
|
|
11135 |
|
|
|
11136 |
/**
|
|
|
11137 |
* Creates a function that returns `value`.
|
|
|
11138 |
*
|
|
|
11139 |
* @static
|
|
|
11140 |
* @memberOf _
|
|
|
11141 |
* @category Utility
|
|
|
11142 |
* @param {*} value The value to return from the new function.
|
|
|
11143 |
* @returns {Function} Returns the new function.
|
|
|
11144 |
* @example
|
|
|
11145 |
*
|
|
|
11146 |
* var object = { 'user': 'fred' };
|
|
|
11147 |
* var getter = _.constant(object);
|
|
|
11148 |
*
|
|
|
11149 |
* getter() === object;
|
|
|
11150 |
* // => true
|
|
|
11151 |
*/
|
|
|
11152 |
function constant(value) {
|
|
|
11153 |
return function() {
|
|
|
11154 |
return value;
|
|
|
11155 |
};
|
|
|
11156 |
}
|
|
|
11157 |
|
|
|
11158 |
/**
|
|
|
11159 |
* This method returns the first argument provided to it.
|
|
|
11160 |
*
|
|
|
11161 |
* @static
|
|
|
11162 |
* @memberOf _
|
|
|
11163 |
* @category Utility
|
|
|
11164 |
* @param {*} value Any value.
|
|
|
11165 |
* @returns {*} Returns `value`.
|
|
|
11166 |
* @example
|
|
|
11167 |
*
|
|
|
11168 |
* var object = { 'user': 'fred' };
|
|
|
11169 |
*
|
|
|
11170 |
* _.identity(object) === object;
|
|
|
11171 |
* // => true
|
|
|
11172 |
*/
|
|
|
11173 |
function identity(value) {
|
|
|
11174 |
return value;
|
|
|
11175 |
}
|
|
|
11176 |
|
|
|
11177 |
/**
|
|
|
11178 |
* Creates a function that performs a deep comparison between a given object
|
|
|
11179 |
* and `source`, returning `true` if the given object has equivalent property
|
|
|
11180 |
* values, else `false`.
|
|
|
11181 |
*
|
|
|
11182 |
* **Note:** This method supports comparing arrays, booleans, `Date` objects,
|
|
|
11183 |
* numbers, `Object` objects, regexes, and strings. Objects are compared by
|
|
|
11184 |
* their own, not inherited, enumerable properties. For comparing a single
|
|
|
11185 |
* own or inherited property value see `_.matchesProperty`.
|
|
|
11186 |
*
|
|
|
11187 |
* @static
|
|
|
11188 |
* @memberOf _
|
|
|
11189 |
* @category Utility
|
|
|
11190 |
* @param {Object} source The object of property values to match.
|
|
|
11191 |
* @returns {Function} Returns the new function.
|
|
|
11192 |
* @example
|
|
|
11193 |
*
|
|
|
11194 |
* var users = [
|
|
|
11195 |
* { 'user': 'barney', 'age': 36, 'active': true },
|
|
|
11196 |
* { 'user': 'fred', 'age': 40, 'active': false }
|
|
|
11197 |
* ];
|
|
|
11198 |
*
|
|
|
11199 |
* _.filter(users, _.matches({ 'age': 40, 'active': false }));
|
|
|
11200 |
* // => [{ 'user': 'fred', 'age': 40, 'active': false }]
|
|
|
11201 |
*/
|
|
|
11202 |
function matches(source) {
|
|
|
11203 |
return baseMatches(baseClone(source, true));
|
|
|
11204 |
}
|
|
|
11205 |
|
|
|
11206 |
/**
|
|
|
11207 |
* Creates a function that compares the property value of `path` on a given
|
|
|
11208 |
* object to `value`.
|
|
|
11209 |
*
|
|
|
11210 |
* **Note:** This method supports comparing arrays, booleans, `Date` objects,
|
|
|
11211 |
* numbers, `Object` objects, regexes, and strings. Objects are compared by
|
|
|
11212 |
* their own, not inherited, enumerable properties.
|
|
|
11213 |
*
|
|
|
11214 |
* @static
|
|
|
11215 |
* @memberOf _
|
|
|
11216 |
* @category Utility
|
|
|
11217 |
* @param {Array|string} path The path of the property to get.
|
|
|
11218 |
* @param {*} srcValue The value to match.
|
|
|
11219 |
* @returns {Function} Returns the new function.
|
|
|
11220 |
* @example
|
|
|
11221 |
*
|
|
|
11222 |
* var users = [
|
|
|
11223 |
* { 'user': 'barney' },
|
|
|
11224 |
* { 'user': 'fred' }
|
|
|
11225 |
* ];
|
|
|
11226 |
*
|
|
|
11227 |
* _.find(users, _.matchesProperty('user', 'fred'));
|
|
|
11228 |
* // => { 'user': 'fred' }
|
|
|
11229 |
*/
|
|
|
11230 |
function matchesProperty(path, srcValue) {
|
|
|
11231 |
return baseMatchesProperty(path, baseClone(srcValue, true));
|
|
|
11232 |
}
|
|
|
11233 |
|
|
|
11234 |
/**
|
|
|
11235 |
* Creates a function that invokes the method at `path` on a given object.
|
|
|
11236 |
* Any additional arguments are provided to the invoked method.
|
|
|
11237 |
*
|
|
|
11238 |
* @static
|
|
|
11239 |
* @memberOf _
|
|
|
11240 |
* @category Utility
|
|
|
11241 |
* @param {Array|string} path The path of the method to invoke.
|
|
|
11242 |
* @param {...*} [args] The arguments to invoke the method with.
|
|
|
11243 |
* @returns {Function} Returns the new function.
|
|
|
11244 |
* @example
|
|
|
11245 |
*
|
|
|
11246 |
* var objects = [
|
|
|
11247 |
* { 'a': { 'b': { 'c': _.constant(2) } } },
|
|
|
11248 |
* { 'a': { 'b': { 'c': _.constant(1) } } }
|
|
|
11249 |
* ];
|
|
|
11250 |
*
|
|
|
11251 |
* _.map(objects, _.method('a.b.c'));
|
|
|
11252 |
* // => [2, 1]
|
|
|
11253 |
*
|
|
|
11254 |
* _.invoke(_.sortBy(objects, _.method(['a', 'b', 'c'])), 'a.b.c');
|
|
|
11255 |
* // => [1, 2]
|
|
|
11256 |
*/
|
|
|
11257 |
var method = restParam(function(path, args) {
|
|
|
11258 |
return function(object) {
|
|
|
11259 |
return invokePath(object, path, args);
|
|
|
11260 |
};
|
|
|
11261 |
});
|
|
|
11262 |
|
|
|
11263 |
/**
|
|
|
11264 |
* The opposite of `_.method`; this method creates a function that invokes
|
|
|
11265 |
* the method at a given path on `object`. Any additional arguments are
|
|
|
11266 |
* provided to the invoked method.
|
|
|
11267 |
*
|
|
|
11268 |
* @static
|
|
|
11269 |
* @memberOf _
|
|
|
11270 |
* @category Utility
|
|
|
11271 |
* @param {Object} object The object to query.
|
|
|
11272 |
* @param {...*} [args] The arguments to invoke the method with.
|
|
|
11273 |
* @returns {Function} Returns the new function.
|
|
|
11274 |
* @example
|
|
|
11275 |
*
|
|
|
11276 |
* var array = _.times(3, _.constant),
|
|
|
11277 |
* object = { 'a': array, 'b': array, 'c': array };
|
|
|
11278 |
*
|
|
|
11279 |
* _.map(['a[2]', 'c[0]'], _.methodOf(object));
|
|
|
11280 |
* // => [2, 0]
|
|
|
11281 |
*
|
|
|
11282 |
* _.map([['a', '2'], ['c', '0']], _.methodOf(object));
|
|
|
11283 |
* // => [2, 0]
|
|
|
11284 |
*/
|
|
|
11285 |
var methodOf = restParam(function(object, args) {
|
|
|
11286 |
return function(path) {
|
|
|
11287 |
return invokePath(object, path, args);
|
|
|
11288 |
};
|
|
|
11289 |
});
|
|
|
11290 |
|
|
|
11291 |
/**
|
|
|
11292 |
* Adds all own enumerable function properties of a source object to the
|
|
|
11293 |
* destination object. If `object` is a function then methods are added to
|
|
|
11294 |
* its prototype as well.
|
|
|
11295 |
*
|
|
|
11296 |
* **Note:** Use `_.runInContext` to create a pristine `lodash` function to
|
|
|
11297 |
* avoid conflicts caused by modifying the original.
|
|
|
11298 |
*
|
|
|
11299 |
* @static
|
|
|
11300 |
* @memberOf _
|
|
|
11301 |
* @category Utility
|
|
|
11302 |
* @param {Function|Object} [object=lodash] The destination object.
|
|
|
11303 |
* @param {Object} source The object of functions to add.
|
|
|
11304 |
* @param {Object} [options] The options object.
|
|
|
11305 |
* @param {boolean} [options.chain=true] Specify whether the functions added
|
|
|
11306 |
* are chainable.
|
|
|
11307 |
* @returns {Function|Object} Returns `object`.
|
|
|
11308 |
* @example
|
|
|
11309 |
*
|
|
|
11310 |
* function vowels(string) {
|
|
|
11311 |
* return _.filter(string, function(v) {
|
|
|
11312 |
* return /[aeiou]/i.test(v);
|
|
|
11313 |
* });
|
|
|
11314 |
* }
|
|
|
11315 |
*
|
|
|
11316 |
* _.mixin({ 'vowels': vowels });
|
|
|
11317 |
* _.vowels('fred');
|
|
|
11318 |
* // => ['e']
|
|
|
11319 |
*
|
|
|
11320 |
* _('fred').vowels().value();
|
|
|
11321 |
* // => ['e']
|
|
|
11322 |
*
|
|
|
11323 |
* _.mixin({ 'vowels': vowels }, { 'chain': false });
|
|
|
11324 |
* _('fred').vowels();
|
|
|
11325 |
* // => ['e']
|
|
|
11326 |
*/
|
|
|
11327 |
function mixin(object, source, options) {
|
|
|
11328 |
if (options == null) {
|
|
|
11329 |
var isObj = isObject(source),
|
|
|
11330 |
props = isObj ? keys(source) : undefined,
|
|
|
11331 |
methodNames = (props && props.length) ? baseFunctions(source, props) : undefined;
|
|
|
11332 |
|
|
|
11333 |
if (!(methodNames ? methodNames.length : isObj)) {
|
|
|
11334 |
methodNames = false;
|
|
|
11335 |
options = source;
|
|
|
11336 |
source = object;
|
|
|
11337 |
object = this;
|
|
|
11338 |
}
|
|
|
11339 |
}
|
|
|
11340 |
if (!methodNames) {
|
|
|
11341 |
methodNames = baseFunctions(source, keys(source));
|
|
|
11342 |
}
|
|
|
11343 |
var chain = true,
|
|
|
11344 |
index = -1,
|
|
|
11345 |
isFunc = isFunction(object),
|
|
|
11346 |
length = methodNames.length;
|
|
|
11347 |
|
|
|
11348 |
if (options === false) {
|
|
|
11349 |
chain = false;
|
|
|
11350 |
} else if (isObject(options) && 'chain' in options) {
|
|
|
11351 |
chain = options.chain;
|
|
|
11352 |
}
|
|
|
11353 |
while (++index < length) {
|
|
|
11354 |
var methodName = methodNames[index],
|
|
|
11355 |
func = source[methodName];
|
|
|
11356 |
|
|
|
11357 |
object[methodName] = func;
|
|
|
11358 |
if (isFunc) {
|
|
|
11359 |
object.prototype[methodName] = (function(func) {
|
|
|
11360 |
return function() {
|
|
|
11361 |
var chainAll = this.__chain__;
|
|
|
11362 |
if (chain || chainAll) {
|
|
|
11363 |
var result = object(this.__wrapped__),
|
|
|
11364 |
actions = result.__actions__ = arrayCopy(this.__actions__);
|
|
|
11365 |
|
|
|
11366 |
actions.push({ 'func': func, 'args': arguments, 'thisArg': object });
|
|
|
11367 |
result.__chain__ = chainAll;
|
|
|
11368 |
return result;
|
|
|
11369 |
}
|
|
|
11370 |
return func.apply(object, arrayPush([this.value()], arguments));
|
|
|
11371 |
};
|
|
|
11372 |
}(func));
|
|
|
11373 |
}
|
|
|
11374 |
}
|
|
|
11375 |
return object;
|
|
|
11376 |
}
|
|
|
11377 |
|
|
|
11378 |
/**
|
|
|
11379 |
* Reverts the `_` variable to its previous value and returns a reference to
|
|
|
11380 |
* the `lodash` function.
|
|
|
11381 |
*
|
|
|
11382 |
* @static
|
|
|
11383 |
* @memberOf _
|
|
|
11384 |
* @category Utility
|
|
|
11385 |
* @returns {Function} Returns the `lodash` function.
|
|
|
11386 |
* @example
|
|
|
11387 |
*
|
|
|
11388 |
* var lodash = _.noConflict();
|
|
|
11389 |
*/
|
|
|
11390 |
function noConflict() {
|
|
|
11391 |
root._ = oldDash;
|
|
|
11392 |
return this;
|
|
|
11393 |
}
|
|
|
11394 |
|
|
|
11395 |
/**
|
|
|
11396 |
* A no-operation function that returns `undefined` regardless of the
|
|
|
11397 |
* arguments it receives.
|
|
|
11398 |
*
|
|
|
11399 |
* @static
|
|
|
11400 |
* @memberOf _
|
|
|
11401 |
* @category Utility
|
|
|
11402 |
* @example
|
|
|
11403 |
*
|
|
|
11404 |
* var object = { 'user': 'fred' };
|
|
|
11405 |
*
|
|
|
11406 |
* _.noop(object) === undefined;
|
|
|
11407 |
* // => true
|
|
|
11408 |
*/
|
|
|
11409 |
function noop() {
|
|
|
11410 |
// No operation performed.
|
|
|
11411 |
}
|
|
|
11412 |
|
|
|
11413 |
/**
|
|
|
11414 |
* Creates a function that returns the property value at `path` on a
|
|
|
11415 |
* given object.
|
|
|
11416 |
*
|
|
|
11417 |
* @static
|
|
|
11418 |
* @memberOf _
|
|
|
11419 |
* @category Utility
|
|
|
11420 |
* @param {Array|string} path The path of the property to get.
|
|
|
11421 |
* @returns {Function} Returns the new function.
|
|
|
11422 |
* @example
|
|
|
11423 |
*
|
|
|
11424 |
* var objects = [
|
|
|
11425 |
* { 'a': { 'b': { 'c': 2 } } },
|
|
|
11426 |
* { 'a': { 'b': { 'c': 1 } } }
|
|
|
11427 |
* ];
|
|
|
11428 |
*
|
|
|
11429 |
* _.map(objects, _.property('a.b.c'));
|
|
|
11430 |
* // => [2, 1]
|
|
|
11431 |
*
|
|
|
11432 |
* _.pluck(_.sortBy(objects, _.property(['a', 'b', 'c'])), 'a.b.c');
|
|
|
11433 |
* // => [1, 2]
|
|
|
11434 |
*/
|
|
|
11435 |
function property(path) {
|
|
|
11436 |
return isKey(path) ? baseProperty(path) : basePropertyDeep(path);
|
|
|
11437 |
}
|
|
|
11438 |
|
|
|
11439 |
/**
|
|
|
11440 |
* The opposite of `_.property`; this method creates a function that returns
|
|
|
11441 |
* the property value at a given path on `object`.
|
|
|
11442 |
*
|
|
|
11443 |
* @static
|
|
|
11444 |
* @memberOf _
|
|
|
11445 |
* @category Utility
|
|
|
11446 |
* @param {Object} object The object to query.
|
|
|
11447 |
* @returns {Function} Returns the new function.
|
|
|
11448 |
* @example
|
|
|
11449 |
*
|
|
|
11450 |
* var array = [0, 1, 2],
|
|
|
11451 |
* object = { 'a': array, 'b': array, 'c': array };
|
|
|
11452 |
*
|
|
|
11453 |
* _.map(['a[2]', 'c[0]'], _.propertyOf(object));
|
|
|
11454 |
* // => [2, 0]
|
|
|
11455 |
*
|
|
|
11456 |
* _.map([['a', '2'], ['c', '0']], _.propertyOf(object));
|
|
|
11457 |
* // => [2, 0]
|
|
|
11458 |
*/
|
|
|
11459 |
function propertyOf(object) {
|
|
|
11460 |
return function(path) {
|
|
|
11461 |
return baseGet(object, toPath(path), (path + ''));
|
|
|
11462 |
};
|
|
|
11463 |
}
|
|
|
11464 |
|
|
|
11465 |
/**
|
|
|
11466 |
* Creates an array of numbers (positive and/or negative) progressing from
|
|
|
11467 |
* `start` up to, but not including, `end`. If `end` is not specified it's
|
|
|
11468 |
* set to `start` with `start` then set to `0`. If `end` is less than `start`
|
|
|
11469 |
* a zero-length range is created unless a negative `step` is specified.
|
|
|
11470 |
*
|
|
|
11471 |
* @static
|
|
|
11472 |
* @memberOf _
|
|
|
11473 |
* @category Utility
|
|
|
11474 |
* @param {number} [start=0] The start of the range.
|
|
|
11475 |
* @param {number} end The end of the range.
|
|
|
11476 |
* @param {number} [step=1] The value to increment or decrement by.
|
|
|
11477 |
* @returns {Array} Returns the new array of numbers.
|
|
|
11478 |
* @example
|
|
|
11479 |
*
|
|
|
11480 |
* _.range(4);
|
|
|
11481 |
* // => [0, 1, 2, 3]
|
|
|
11482 |
*
|
|
|
11483 |
* _.range(1, 5);
|
|
|
11484 |
* // => [1, 2, 3, 4]
|
|
|
11485 |
*
|
|
|
11486 |
* _.range(0, 20, 5);
|
|
|
11487 |
* // => [0, 5, 10, 15]
|
|
|
11488 |
*
|
|
|
11489 |
* _.range(0, -4, -1);
|
|
|
11490 |
* // => [0, -1, -2, -3]
|
|
|
11491 |
*
|
|
|
11492 |
* _.range(1, 4, 0);
|
|
|
11493 |
* // => [1, 1, 1]
|
|
|
11494 |
*
|
|
|
11495 |
* _.range(0);
|
|
|
11496 |
* // => []
|
|
|
11497 |
*/
|
|
|
11498 |
function range(start, end, step) {
|
|
|
11499 |
if (step && isIterateeCall(start, end, step)) {
|
|
|
11500 |
end = step = undefined;
|
|
|
11501 |
}
|
|
|
11502 |
start = +start || 0;
|
|
|
11503 |
step = step == null ? 1 : (+step || 0);
|
|
|
11504 |
|
|
|
11505 |
if (end == null) {
|
|
|
11506 |
end = start;
|
|
|
11507 |
start = 0;
|
|
|
11508 |
} else {
|
|
|
11509 |
end = +end || 0;
|
|
|
11510 |
}
|
|
|
11511 |
// Use `Array(length)` so engines like Chakra and V8 avoid slower modes.
|
|
|
11512 |
// See https://youtu.be/XAqIpGU8ZZk#t=17m25s for more details.
|
|
|
11513 |
var index = -1,
|
|
|
11514 |
length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),
|
|
|
11515 |
result = Array(length);
|
|
|
11516 |
|
|
|
11517 |
while (++index < length) {
|
|
|
11518 |
result[index] = start;
|
|
|
11519 |
start += step;
|
|
|
11520 |
}
|
|
|
11521 |
return result;
|
|
|
11522 |
}
|
|
|
11523 |
|
|
|
11524 |
/**
|
|
|
11525 |
* Invokes the iteratee function `n` times, returning an array of the results
|
|
|
11526 |
* of each invocation. The `iteratee` is bound to `thisArg` and invoked with
|
|
|
11527 |
* one argument; (index).
|
|
|
11528 |
*
|
|
|
11529 |
* @static
|
|
|
11530 |
* @memberOf _
|
|
|
11531 |
* @category Utility
|
|
|
11532 |
* @param {number} n The number of times to invoke `iteratee`.
|
|
|
11533 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
|
|
11534 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
|
11535 |
* @returns {Array} Returns the array of results.
|
|
|
11536 |
* @example
|
|
|
11537 |
*
|
|
|
11538 |
* var diceRolls = _.times(3, _.partial(_.random, 1, 6, false));
|
|
|
11539 |
* // => [3, 6, 4]
|
|
|
11540 |
*
|
|
|
11541 |
* _.times(3, function(n) {
|
|
|
11542 |
* mage.castSpell(n);
|
|
|
11543 |
* });
|
|
|
11544 |
* // => invokes `mage.castSpell(n)` three times with `n` of `0`, `1`, and `2`
|
|
|
11545 |
*
|
|
|
11546 |
* _.times(3, function(n) {
|
|
|
11547 |
* this.cast(n);
|
|
|
11548 |
* }, mage);
|
|
|
11549 |
* // => also invokes `mage.castSpell(n)` three times
|
|
|
11550 |
*/
|
|
|
11551 |
function times(n, iteratee, thisArg) {
|
|
|
11552 |
n = nativeFloor(n);
|
|
|
11553 |
|
|
|
11554 |
// Exit early to avoid a JSC JIT bug in Safari 8
|
|
|
11555 |
// where `Array(0)` is treated as `Array(1)`.
|
|
|
11556 |
if (n < 1 || !nativeIsFinite(n)) {
|
|
|
11557 |
return [];
|
|
|
11558 |
}
|
|
|
11559 |
var index = -1,
|
|
|
11560 |
result = Array(nativeMin(n, MAX_ARRAY_LENGTH));
|
|
|
11561 |
|
|
|
11562 |
iteratee = bindCallback(iteratee, thisArg, 1);
|
|
|
11563 |
while (++index < n) {
|
|
|
11564 |
if (index < MAX_ARRAY_LENGTH) {
|
|
|
11565 |
result[index] = iteratee(index);
|
|
|
11566 |
} else {
|
|
|
11567 |
iteratee(index);
|
|
|
11568 |
}
|
|
|
11569 |
}
|
|
|
11570 |
return result;
|
|
|
11571 |
}
|
|
|
11572 |
|
|
|
11573 |
/**
|
|
|
11574 |
* Generates a unique ID. If `prefix` is provided the ID is appended to it.
|
|
|
11575 |
*
|
|
|
11576 |
* @static
|
|
|
11577 |
* @memberOf _
|
|
|
11578 |
* @category Utility
|
|
442
|
11579 |
* @param {string} [prefix] The value to prefix the ID with.
|
|
|
11580 |
* @returns {string} Returns the unique ID.
|
|
|
11581 |
* @example
|
|
|
11582 |
*
|
|
|
11583 |
* _.uniqueId('contact_');
|
|
|
11584 |
* // => 'contact_104'
|
|
|
11585 |
*
|
|
|
11586 |
* _.uniqueId();
|
|
|
11587 |
* // => '105'
|
|
|
11588 |
*/
|
|
|
11589 |
function uniqueId(prefix) {
|
|
|
11590 |
var id = ++idCounter;
|
|
498
|
11591 |
return baseToString(prefix) + id;
|
|
|
11592 |
}
|
|
|
11593 |
|
|
|
11594 |
/*------------------------------------------------------------------------*/
|
|
|
11595 |
|
|
|
11596 |
/**
|
|
|
11597 |
* Adds two numbers.
|
|
|
11598 |
*
|
|
|
11599 |
* @static
|
|
|
11600 |
* @memberOf _
|
|
|
11601 |
* @category Math
|
|
|
11602 |
* @param {number} augend The first number to add.
|
|
|
11603 |
* @param {number} addend The second number to add.
|
|
|
11604 |
* @returns {number} Returns the sum.
|
|
|
11605 |
* @example
|
|
|
11606 |
*
|
|
|
11607 |
* _.add(6, 4);
|
|
|
11608 |
* // => 10
|
|
|
11609 |
*/
|
|
|
11610 |
function add(augend, addend) {
|
|
|
11611 |
return (+augend || 0) + (+addend || 0);
|
|
|
11612 |
}
|
|
|
11613 |
|
|
|
11614 |
/**
|
|
|
11615 |
* Calculates `n` rounded up to `precision`.
|
|
|
11616 |
*
|
|
|
11617 |
* @static
|
|
|
11618 |
* @memberOf _
|
|
|
11619 |
* @category Math
|
|
|
11620 |
* @param {number} n The number to round up.
|
|
|
11621 |
* @param {number} [precision=0] The precision to round up to.
|
|
|
11622 |
* @returns {number} Returns the rounded up number.
|
|
|
11623 |
* @example
|
|
|
11624 |
*
|
|
|
11625 |
* _.ceil(4.006);
|
|
|
11626 |
* // => 5
|
|
|
11627 |
*
|
|
|
11628 |
* _.ceil(6.004, 2);
|
|
|
11629 |
* // => 6.01
|
|
|
11630 |
*
|
|
|
11631 |
* _.ceil(6040, -2);
|
|
|
11632 |
* // => 6100
|
|
|
11633 |
*/
|
|
|
11634 |
var ceil = createRound('ceil');
|
|
|
11635 |
|
|
|
11636 |
/**
|
|
|
11637 |
* Calculates `n` rounded down to `precision`.
|
|
|
11638 |
*
|
|
|
11639 |
* @static
|
|
|
11640 |
* @memberOf _
|
|
|
11641 |
* @category Math
|
|
|
11642 |
* @param {number} n The number to round down.
|
|
|
11643 |
* @param {number} [precision=0] The precision to round down to.
|
|
|
11644 |
* @returns {number} Returns the rounded down number.
|
|
|
11645 |
* @example
|
|
|
11646 |
*
|
|
|
11647 |
* _.floor(4.006);
|
|
|
11648 |
* // => 4
|
|
|
11649 |
*
|
|
|
11650 |
* _.floor(0.046, 2);
|
|
|
11651 |
* // => 0.04
|
|
|
11652 |
*
|
|
|
11653 |
* _.floor(4060, -2);
|
|
|
11654 |
* // => 4000
|
|
|
11655 |
*/
|
|
|
11656 |
var floor = createRound('floor');
|
|
|
11657 |
|
|
|
11658 |
/**
|
|
|
11659 |
* Gets the maximum value of `collection`. If `collection` is empty or falsey
|
|
|
11660 |
* `-Infinity` is returned. If an iteratee function is provided it's invoked
|
|
|
11661 |
* for each value in `collection` to generate the criterion by which the value
|
|
|
11662 |
* is ranked. The `iteratee` is bound to `thisArg` and invoked with three
|
|
|
11663 |
* arguments: (value, index, collection).
|
|
|
11664 |
*
|
|
|
11665 |
* If a property name is provided for `iteratee` the created `_.property`
|
|
|
11666 |
* style callback returns the property value of the given element.
|
|
|
11667 |
*
|
|
|
11668 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
11669 |
* style callback returns `true` for elements that have a matching property
|
|
|
11670 |
* value, else `false`.
|
|
|
11671 |
*
|
|
|
11672 |
* If an object is provided for `iteratee` the created `_.matches` style
|
|
|
11673 |
* callback returns `true` for elements that have the properties of the given
|
|
|
11674 |
* object, else `false`.
|
|
|
11675 |
*
|
|
|
11676 |
* @static
|
|
|
11677 |
* @memberOf _
|
|
|
11678 |
* @category Math
|
|
|
11679 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
|
11680 |
* @param {Function|Object|string} [iteratee] The function invoked per iteration.
|
|
|
11681 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
|
11682 |
* @returns {*} Returns the maximum value.
|
|
|
11683 |
* @example
|
|
|
11684 |
*
|
|
|
11685 |
* _.max([4, 2, 8, 6]);
|
|
|
11686 |
* // => 8
|
|
|
11687 |
*
|
|
|
11688 |
* _.max([]);
|
|
|
11689 |
* // => -Infinity
|
|
|
11690 |
*
|
|
|
11691 |
* var users = [
|
|
|
11692 |
* { 'user': 'barney', 'age': 36 },
|
|
|
11693 |
* { 'user': 'fred', 'age': 40 }
|
|
442
|
11694 |
* ];
|
|
|
11695 |
*
|
|
498
|
11696 |
* _.max(users, function(chr) {
|
|
|
11697 |
* return chr.age;
|
|
|
11698 |
* });
|
|
|
11699 |
* // => { 'user': 'fred', 'age': 40 }
|
|
|
11700 |
*
|
|
|
11701 |
* // using the `_.property` callback shorthand
|
|
|
11702 |
* _.max(users, 'age');
|
|
|
11703 |
* // => { 'user': 'fred', 'age': 40 }
|
|
|
11704 |
*/
|
|
|
11705 |
var max = createExtremum(gt, NEGATIVE_INFINITY);
|
|
|
11706 |
|
|
|
11707 |
/**
|
|
|
11708 |
* Gets the minimum value of `collection`. If `collection` is empty or falsey
|
|
|
11709 |
* `Infinity` is returned. If an iteratee function is provided it's invoked
|
|
|
11710 |
* for each value in `collection` to generate the criterion by which the value
|
|
|
11711 |
* is ranked. The `iteratee` is bound to `thisArg` and invoked with three
|
|
|
11712 |
* arguments: (value, index, collection).
|
|
|
11713 |
*
|
|
|
11714 |
* If a property name is provided for `iteratee` the created `_.property`
|
|
|
11715 |
* style callback returns the property value of the given element.
|
|
|
11716 |
*
|
|
|
11717 |
* If a value is also provided for `thisArg` the created `_.matchesProperty`
|
|
|
11718 |
* style callback returns `true` for elements that have a matching property
|
|
|
11719 |
* value, else `false`.
|
|
|
11720 |
*
|
|
|
11721 |
* If an object is provided for `iteratee` the created `_.matches` style
|
|
|
11722 |
* callback returns `true` for elements that have the properties of the given
|
|
|
11723 |
* object, else `false`.
|
|
|
11724 |
*
|
|
|
11725 |
* @static
|
|
|
11726 |
* @memberOf _
|
|
|
11727 |
* @category Math
|
|
|
11728 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
|
11729 |
* @param {Function|Object|string} [iteratee] The function invoked per iteration.
|
|
|
11730 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
|
11731 |
* @returns {*} Returns the minimum value.
|
|
|
11732 |
* @example
|
|
|
11733 |
*
|
|
|
11734 |
* _.min([4, 2, 8, 6]);
|
|
|
11735 |
* // => 2
|
|
|
11736 |
*
|
|
|
11737 |
* _.min([]);
|
|
|
11738 |
* // => Infinity
|
|
|
11739 |
*
|
|
|
11740 |
* var users = [
|
|
|
11741 |
* { 'user': 'barney', 'age': 36 },
|
|
|
11742 |
* { 'user': 'fred', 'age': 40 }
|
|
442
|
11743 |
* ];
|
|
|
11744 |
*
|
|
498
|
11745 |
* _.min(users, function(chr) {
|
|
|
11746 |
* return chr.age;
|
|
|
11747 |
* });
|
|
|
11748 |
* // => { 'user': 'barney', 'age': 36 }
|
|
|
11749 |
*
|
|
|
11750 |
* // using the `_.property` callback shorthand
|
|
|
11751 |
* _.min(users, 'age');
|
|
|
11752 |
* // => { 'user': 'barney', 'age': 36 }
|
|
|
11753 |
*/
|
|
|
11754 |
var min = createExtremum(lt, POSITIVE_INFINITY);
|
|
|
11755 |
|
|
|
11756 |
/**
|
|
|
11757 |
* Calculates `n` rounded to `precision`.
|
|
|
11758 |
*
|
|
|
11759 |
* @static
|
|
|
11760 |
* @memberOf _
|
|
|
11761 |
* @category Math
|
|
|
11762 |
* @param {number} n The number to round.
|
|
|
11763 |
* @param {number} [precision=0] The precision to round to.
|
|
|
11764 |
* @returns {number} Returns the rounded number.
|
|
|
11765 |
* @example
|
|
|
11766 |
*
|
|
|
11767 |
* _.round(4.006);
|
|
|
11768 |
* // => 4
|
|
|
11769 |
*
|
|
|
11770 |
* _.round(4.006, 2);
|
|
|
11771 |
* // => 4.01
|
|
|
11772 |
*
|
|
|
11773 |
* _.round(4060, -2);
|
|
|
11774 |
* // => 4100
|
|
|
11775 |
*/
|
|
|
11776 |
var round = createRound('round');
|
|
|
11777 |
|
|
|
11778 |
/**
|
|
|
11779 |
* Gets the sum of the values in `collection`.
|
|
|
11780 |
*
|
|
|
11781 |
* @static
|
|
|
11782 |
* @memberOf _
|
|
|
11783 |
* @category Math
|
|
|
11784 |
* @param {Array|Object|string} collection The collection to iterate over.
|
|
|
11785 |
* @param {Function|Object|string} [iteratee] The function invoked per iteration.
|
|
|
11786 |
* @param {*} [thisArg] The `this` binding of `iteratee`.
|
|
|
11787 |
* @returns {number} Returns the sum.
|
|
|
11788 |
* @example
|
|
|
11789 |
*
|
|
|
11790 |
* _.sum([4, 6]);
|
|
|
11791 |
* // => 10
|
|
|
11792 |
*
|
|
|
11793 |
* _.sum({ 'a': 4, 'b': 6 });
|
|
|
11794 |
* // => 10
|
|
|
11795 |
*
|
|
|
11796 |
* var objects = [
|
|
|
11797 |
* { 'n': 4 },
|
|
|
11798 |
* { 'n': 6 }
|
|
|
11799 |
* ];
|
|
|
11800 |
*
|
|
|
11801 |
* _.sum(objects, function(object) {
|
|
|
11802 |
* return object.n;
|
|
|
11803 |
* });
|
|
|
11804 |
* // => 10
|
|
|
11805 |
*
|
|
|
11806 |
* // using the `_.property` callback shorthand
|
|
|
11807 |
* _.sum(objects, 'n');
|
|
|
11808 |
* // => 10
|
|
|
11809 |
*/
|
|
|
11810 |
function sum(collection, iteratee, thisArg) {
|
|
|
11811 |
if (thisArg && isIterateeCall(collection, iteratee, thisArg)) {
|
|
|
11812 |
iteratee = undefined;
|
|
|
11813 |
}
|
|
|
11814 |
iteratee = getCallback(iteratee, thisArg, 3);
|
|
|
11815 |
return iteratee.length == 1
|
|
|
11816 |
? arraySum(isArray(collection) ? collection : toIterable(collection), iteratee)
|
|
|
11817 |
: baseSum(collection, iteratee);
|
|
|
11818 |
}
|
|
|
11819 |
|
|
|
11820 |
/*------------------------------------------------------------------------*/
|
|
|
11821 |
|
|
|
11822 |
// Ensure wrappers are instances of `baseLodash`.
|
|
|
11823 |
lodash.prototype = baseLodash.prototype;
|
|
|
11824 |
|
|
|
11825 |
LodashWrapper.prototype = baseCreate(baseLodash.prototype);
|
|
|
11826 |
LodashWrapper.prototype.constructor = LodashWrapper;
|
|
|
11827 |
|
|
|
11828 |
LazyWrapper.prototype = baseCreate(baseLodash.prototype);
|
|
|
11829 |
LazyWrapper.prototype.constructor = LazyWrapper;
|
|
|
11830 |
|
|
|
11831 |
// Add functions to the `Map` cache.
|
|
|
11832 |
MapCache.prototype['delete'] = mapDelete;
|
|
|
11833 |
MapCache.prototype.get = mapGet;
|
|
|
11834 |
MapCache.prototype.has = mapHas;
|
|
|
11835 |
MapCache.prototype.set = mapSet;
|
|
|
11836 |
|
|
|
11837 |
// Add functions to the `Set` cache.
|
|
|
11838 |
SetCache.prototype.push = cachePush;
|
|
|
11839 |
|
|
|
11840 |
// Assign cache to `_.memoize`.
|
|
|
11841 |
memoize.Cache = MapCache;
|
|
|
11842 |
|
|
|
11843 |
// Add functions that return wrapped values when chaining.
|
|
442
|
11844 |
lodash.after = after;
|
|
498
|
11845 |
lodash.ary = ary;
|
|
442
|
11846 |
lodash.assign = assign;
|
|
|
11847 |
lodash.at = at;
|
|
498
|
11848 |
lodash.before = before;
|
|
442
|
11849 |
lodash.bind = bind;
|
|
|
11850 |
lodash.bindAll = bindAll;
|
|
|
11851 |
lodash.bindKey = bindKey;
|
|
498
|
11852 |
lodash.callback = callback;
|
|
442
|
11853 |
lodash.chain = chain;
|
|
498
|
11854 |
lodash.chunk = chunk;
|
|
442
|
11855 |
lodash.compact = compact;
|
|
|
11856 |
lodash.constant = constant;
|
|
|
11857 |
lodash.countBy = countBy;
|
|
|
11858 |
lodash.create = create;
|
|
|
11859 |
lodash.curry = curry;
|
|
498
|
11860 |
lodash.curryRight = curryRight;
|
|
442
|
11861 |
lodash.debounce = debounce;
|
|
|
11862 |
lodash.defaults = defaults;
|
|
498
|
11863 |
lodash.defaultsDeep = defaultsDeep;
|
|
442
|
11864 |
lodash.defer = defer;
|
|
|
11865 |
lodash.delay = delay;
|
|
|
11866 |
lodash.difference = difference;
|
|
498
|
11867 |
lodash.drop = drop;
|
|
|
11868 |
lodash.dropRight = dropRight;
|
|
|
11869 |
lodash.dropRightWhile = dropRightWhile;
|
|
|
11870 |
lodash.dropWhile = dropWhile;
|
|
|
11871 |
lodash.fill = fill;
|
|
442
|
11872 |
lodash.filter = filter;
|
|
|
11873 |
lodash.flatten = flatten;
|
|
498
|
11874 |
lodash.flattenDeep = flattenDeep;
|
|
|
11875 |
lodash.flow = flow;
|
|
|
11876 |
lodash.flowRight = flowRight;
|
|
442
|
11877 |
lodash.forEach = forEach;
|
|
|
11878 |
lodash.forEachRight = forEachRight;
|
|
|
11879 |
lodash.forIn = forIn;
|
|
|
11880 |
lodash.forInRight = forInRight;
|
|
|
11881 |
lodash.forOwn = forOwn;
|
|
|
11882 |
lodash.forOwnRight = forOwnRight;
|
|
|
11883 |
lodash.functions = functions;
|
|
|
11884 |
lodash.groupBy = groupBy;
|
|
|
11885 |
lodash.indexBy = indexBy;
|
|
|
11886 |
lodash.initial = initial;
|
|
|
11887 |
lodash.intersection = intersection;
|
|
|
11888 |
lodash.invert = invert;
|
|
|
11889 |
lodash.invoke = invoke;
|
|
|
11890 |
lodash.keys = keys;
|
|
498
|
11891 |
lodash.keysIn = keysIn;
|
|
442
|
11892 |
lodash.map = map;
|
|
498
|
11893 |
lodash.mapKeys = mapKeys;
|
|
442
|
11894 |
lodash.mapValues = mapValues;
|
|
498
|
11895 |
lodash.matches = matches;
|
|
|
11896 |
lodash.matchesProperty = matchesProperty;
|
|
442
|
11897 |
lodash.memoize = memoize;
|
|
|
11898 |
lodash.merge = merge;
|
|
498
|
11899 |
lodash.method = method;
|
|
|
11900 |
lodash.methodOf = methodOf;
|
|
|
11901 |
lodash.mixin = mixin;
|
|
|
11902 |
lodash.modArgs = modArgs;
|
|
|
11903 |
lodash.negate = negate;
|
|
442
|
11904 |
lodash.omit = omit;
|
|
|
11905 |
lodash.once = once;
|
|
|
11906 |
lodash.pairs = pairs;
|
|
|
11907 |
lodash.partial = partial;
|
|
|
11908 |
lodash.partialRight = partialRight;
|
|
498
|
11909 |
lodash.partition = partition;
|
|
442
|
11910 |
lodash.pick = pick;
|
|
|
11911 |
lodash.pluck = pluck;
|
|
|
11912 |
lodash.property = property;
|
|
498
|
11913 |
lodash.propertyOf = propertyOf;
|
|
442
|
11914 |
lodash.pull = pull;
|
|
498
|
11915 |
lodash.pullAt = pullAt;
|
|
442
|
11916 |
lodash.range = range;
|
|
498
|
11917 |
lodash.rearg = rearg;
|
|
442
|
11918 |
lodash.reject = reject;
|
|
|
11919 |
lodash.remove = remove;
|
|
|
11920 |
lodash.rest = rest;
|
|
498
|
11921 |
lodash.restParam = restParam;
|
|
|
11922 |
lodash.set = set;
|
|
442
|
11923 |
lodash.shuffle = shuffle;
|
|
498
|
11924 |
lodash.slice = slice;
|
|
442
|
11925 |
lodash.sortBy = sortBy;
|
|
498
|
11926 |
lodash.sortByAll = sortByAll;
|
|
|
11927 |
lodash.sortByOrder = sortByOrder;
|
|
|
11928 |
lodash.spread = spread;
|
|
|
11929 |
lodash.take = take;
|
|
|
11930 |
lodash.takeRight = takeRight;
|
|
|
11931 |
lodash.takeRightWhile = takeRightWhile;
|
|
|
11932 |
lodash.takeWhile = takeWhile;
|
|
442
|
11933 |
lodash.tap = tap;
|
|
|
11934 |
lodash.throttle = throttle;
|
|
498
|
11935 |
lodash.thru = thru;
|
|
442
|
11936 |
lodash.times = times;
|
|
|
11937 |
lodash.toArray = toArray;
|
|
498
|
11938 |
lodash.toPlainObject = toPlainObject;
|
|
442
|
11939 |
lodash.transform = transform;
|
|
|
11940 |
lodash.union = union;
|
|
|
11941 |
lodash.uniq = uniq;
|
|
498
|
11942 |
lodash.unzip = unzip;
|
|
|
11943 |
lodash.unzipWith = unzipWith;
|
|
442
|
11944 |
lodash.values = values;
|
|
498
|
11945 |
lodash.valuesIn = valuesIn;
|
|
442
|
11946 |
lodash.where = where;
|
|
|
11947 |
lodash.without = without;
|
|
|
11948 |
lodash.wrap = wrap;
|
|
|
11949 |
lodash.xor = xor;
|
|
|
11950 |
lodash.zip = zip;
|
|
|
11951 |
lodash.zipObject = zipObject;
|
|
498
|
11952 |
lodash.zipWith = zipWith;
|
|
|
11953 |
|
|
|
11954 |
// Add aliases.
|
|
|
11955 |
lodash.backflow = flowRight;
|
|
442
|
11956 |
lodash.collect = map;
|
|
498
|
11957 |
lodash.compose = flowRight;
|
|
442
|
11958 |
lodash.each = forEach;
|
|
|
11959 |
lodash.eachRight = forEachRight;
|
|
|
11960 |
lodash.extend = assign;
|
|
498
|
11961 |
lodash.iteratee = callback;
|
|
442
|
11962 |
lodash.methods = functions;
|
|
|
11963 |
lodash.object = zipObject;
|
|
|
11964 |
lodash.select = filter;
|
|
|
11965 |
lodash.tail = rest;
|
|
|
11966 |
lodash.unique = uniq;
|
|
498
|
11967 |
|
|
|
11968 |
// Add functions to `lodash.prototype`.
|
|
|
11969 |
mixin(lodash, lodash);
|
|
|
11970 |
|
|
|
11971 |
/*------------------------------------------------------------------------*/
|
|
|
11972 |
|
|
|
11973 |
// Add functions that return unwrapped values when chaining.
|
|
|
11974 |
lodash.add = add;
|
|
|
11975 |
lodash.attempt = attempt;
|
|
|
11976 |
lodash.camelCase = camelCase;
|
|
|
11977 |
lodash.capitalize = capitalize;
|
|
|
11978 |
lodash.ceil = ceil;
|
|
442
|
11979 |
lodash.clone = clone;
|
|
|
11980 |
lodash.cloneDeep = cloneDeep;
|
|
498
|
11981 |
lodash.deburr = deburr;
|
|
|
11982 |
lodash.endsWith = endsWith;
|
|
442
|
11983 |
lodash.escape = escape;
|
|
498
|
11984 |
lodash.escapeRegExp = escapeRegExp;
|
|
442
|
11985 |
lodash.every = every;
|
|
|
11986 |
lodash.find = find;
|
|
|
11987 |
lodash.findIndex = findIndex;
|
|
|
11988 |
lodash.findKey = findKey;
|
|
|
11989 |
lodash.findLast = findLast;
|
|
|
11990 |
lodash.findLastIndex = findLastIndex;
|
|
|
11991 |
lodash.findLastKey = findLastKey;
|
|
498
|
11992 |
lodash.findWhere = findWhere;
|
|
|
11993 |
lodash.first = first;
|
|
|
11994 |
lodash.floor = floor;
|
|
|
11995 |
lodash.get = get;
|
|
|
11996 |
lodash.gt = gt;
|
|
|
11997 |
lodash.gte = gte;
|
|
442
|
11998 |
lodash.has = has;
|
|
|
11999 |
lodash.identity = identity;
|
|
498
|
12000 |
lodash.includes = includes;
|
|
442
|
12001 |
lodash.indexOf = indexOf;
|
|
498
|
12002 |
lodash.inRange = inRange;
|
|
442
|
12003 |
lodash.isArguments = isArguments;
|
|
|
12004 |
lodash.isArray = isArray;
|
|
|
12005 |
lodash.isBoolean = isBoolean;
|
|
|
12006 |
lodash.isDate = isDate;
|
|
|
12007 |
lodash.isElement = isElement;
|
|
|
12008 |
lodash.isEmpty = isEmpty;
|
|
|
12009 |
lodash.isEqual = isEqual;
|
|
498
|
12010 |
lodash.isError = isError;
|
|
442
|
12011 |
lodash.isFinite = isFinite;
|
|
|
12012 |
lodash.isFunction = isFunction;
|
|
498
|
12013 |
lodash.isMatch = isMatch;
|
|
442
|
12014 |
lodash.isNaN = isNaN;
|
|
498
|
12015 |
lodash.isNative = isNative;
|
|
442
|
12016 |
lodash.isNull = isNull;
|
|
|
12017 |
lodash.isNumber = isNumber;
|
|
|
12018 |
lodash.isObject = isObject;
|
|
|
12019 |
lodash.isPlainObject = isPlainObject;
|
|
|
12020 |
lodash.isRegExp = isRegExp;
|
|
|
12021 |
lodash.isString = isString;
|
|
498
|
12022 |
lodash.isTypedArray = isTypedArray;
|
|
442
|
12023 |
lodash.isUndefined = isUndefined;
|
|
498
|
12024 |
lodash.kebabCase = kebabCase;
|
|
|
12025 |
lodash.last = last;
|
|
442
|
12026 |
lodash.lastIndexOf = lastIndexOf;
|
|
498
|
12027 |
lodash.lt = lt;
|
|
|
12028 |
lodash.lte = lte;
|
|
|
12029 |
lodash.max = max;
|
|
|
12030 |
lodash.min = min;
|
|
442
|
12031 |
lodash.noConflict = noConflict;
|
|
|
12032 |
lodash.noop = noop;
|
|
|
12033 |
lodash.now = now;
|
|
498
|
12034 |
lodash.pad = pad;
|
|
|
12035 |
lodash.padLeft = padLeft;
|
|
|
12036 |
lodash.padRight = padRight;
|
|
442
|
12037 |
lodash.parseInt = parseInt;
|
|
|
12038 |
lodash.random = random;
|
|
|
12039 |
lodash.reduce = reduce;
|
|
|
12040 |
lodash.reduceRight = reduceRight;
|
|
498
|
12041 |
lodash.repeat = repeat;
|
|
442
|
12042 |
lodash.result = result;
|
|
498
|
12043 |
lodash.round = round;
|
|
442
|
12044 |
lodash.runInContext = runInContext;
|
|
|
12045 |
lodash.size = size;
|
|
498
|
12046 |
lodash.snakeCase = snakeCase;
|
|
442
|
12047 |
lodash.some = some;
|
|
|
12048 |
lodash.sortedIndex = sortedIndex;
|
|
498
|
12049 |
lodash.sortedLastIndex = sortedLastIndex;
|
|
|
12050 |
lodash.startCase = startCase;
|
|
|
12051 |
lodash.startsWith = startsWith;
|
|
|
12052 |
lodash.sum = sum;
|
|
442
|
12053 |
lodash.template = template;
|
|
498
|
12054 |
lodash.trim = trim;
|
|
|
12055 |
lodash.trimLeft = trimLeft;
|
|
|
12056 |
lodash.trimRight = trimRight;
|
|
|
12057 |
lodash.trunc = trunc;
|
|
442
|
12058 |
lodash.unescape = unescape;
|
|
|
12059 |
lodash.uniqueId = uniqueId;
|
|
498
|
12060 |
lodash.words = words;
|
|
|
12061 |
|
|
|
12062 |
// Add aliases.
|
|
442
|
12063 |
lodash.all = every;
|
|
|
12064 |
lodash.any = some;
|
|
498
|
12065 |
lodash.contains = includes;
|
|
|
12066 |
lodash.eq = isEqual;
|
|
442
|
12067 |
lodash.detect = find;
|
|
|
12068 |
lodash.foldl = reduce;
|
|
|
12069 |
lodash.foldr = reduceRight;
|
|
498
|
12070 |
lodash.head = first;
|
|
|
12071 |
lodash.include = includes;
|
|
442
|
12072 |
lodash.inject = reduce;
|
|
|
12073 |
|
|
498
|
12074 |
mixin(lodash, (function() {
|
|
|
12075 |
var source = {};
|
|
|
12076 |
baseForOwn(lodash, function(func, methodName) {
|
|
442
|
12077 |
if (!lodash.prototype[methodName]) {
|
|
|
12078 |
source[methodName] = func;
|
|
|
12079 |
}
|
|
|
12080 |
});
|
|
|
12081 |
return source;
|
|
498
|
12082 |
}()), false);
|
|
|
12083 |
|
|
|
12084 |
/*------------------------------------------------------------------------*/
|
|
|
12085 |
|
|
|
12086 |
// Add functions capable of returning wrapped and unwrapped values when chaining.
|
|
442
|
12087 |
lodash.sample = sample;
|
|
|
12088 |
|
|
498
|
12089 |
lodash.prototype.sample = function(n) {
|
|
|
12090 |
if (!this.__chain__ && n == null) {
|
|
|
12091 |
return sample(this.value());
|
|
|
12092 |
}
|
|
|
12093 |
return this.thru(function(value) {
|
|
|
12094 |
return sample(value, n);
|
|
|
12095 |
});
|
|
|
12096 |
};
|
|
|
12097 |
|
|
|
12098 |
/*------------------------------------------------------------------------*/
|
|
442
|
12099 |
|
|
|
12100 |
/**
|
|
|
12101 |
* The semantic version number.
|
|
|
12102 |
*
|
|
|
12103 |
* @static
|
|
|
12104 |
* @memberOf _
|
|
|
12105 |
* @type string
|
|
|
12106 |
*/
|
|
498
|
12107 |
lodash.VERSION = VERSION;
|
|
|
12108 |
|
|
|
12109 |
// Assign default placeholders.
|
|
|
12110 |
arrayEach(['bind', 'bindKey', 'curry', 'curryRight', 'partial', 'partialRight'], function(methodName) {
|
|
|
12111 |
lodash[methodName].placeholder = lodash;
|
|
|
12112 |
});
|
|
|
12113 |
|
|
|
12114 |
// Add `LazyWrapper` methods for `_.drop` and `_.take` variants.
|
|
|
12115 |
arrayEach(['drop', 'take'], function(methodName, index) {
|
|
|
12116 |
LazyWrapper.prototype[methodName] = function(n) {
|
|
|
12117 |
var filtered = this.__filtered__;
|
|
|
12118 |
if (filtered && !index) {
|
|
|
12119 |
return new LazyWrapper(this);
|
|
|
12120 |
}
|
|
|
12121 |
n = n == null ? 1 : nativeMax(nativeFloor(n) || 0, 0);
|
|
|
12122 |
|
|
|
12123 |
var result = this.clone();
|
|
|
12124 |
if (filtered) {
|
|
|
12125 |
result.__takeCount__ = nativeMin(result.__takeCount__, n);
|
|
|
12126 |
} else {
|
|
|
12127 |
result.__views__.push({ 'size': n, 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') });
|
|
|
12128 |
}
|
|
|
12129 |
return result;
|
|
|
12130 |
};
|
|
|
12131 |
|
|
|
12132 |
LazyWrapper.prototype[methodName + 'Right'] = function(n) {
|
|
|
12133 |
return this.reverse()[methodName](n).reverse();
|
|
|
12134 |
};
|
|
|
12135 |
});
|
|
|
12136 |
|
|
|
12137 |
// Add `LazyWrapper` methods that accept an `iteratee` value.
|
|
|
12138 |
arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) {
|
|
|
12139 |
var type = index + 1,
|
|
|
12140 |
isFilter = type != LAZY_MAP_FLAG;
|
|
|
12141 |
|
|
|
12142 |
LazyWrapper.prototype[methodName] = function(iteratee, thisArg) {
|
|
|
12143 |
var result = this.clone();
|
|
|
12144 |
result.__iteratees__.push({ 'iteratee': getCallback(iteratee, thisArg, 1), 'type': type });
|
|
|
12145 |
result.__filtered__ = result.__filtered__ || isFilter;
|
|
|
12146 |
return result;
|
|
|
12147 |
};
|
|
|
12148 |
});
|
|
|
12149 |
|
|
|
12150 |
// Add `LazyWrapper` methods for `_.first` and `_.last`.
|
|
|
12151 |
arrayEach(['first', 'last'], function(methodName, index) {
|
|
|
12152 |
var takeName = 'take' + (index ? 'Right' : '');
|
|
|
12153 |
|
|
|
12154 |
LazyWrapper.prototype[methodName] = function() {
|
|
|
12155 |
return this[takeName](1).value()[0];
|
|
|
12156 |
};
|
|
|
12157 |
});
|
|
|
12158 |
|
|
|
12159 |
// Add `LazyWrapper` methods for `_.initial` and `_.rest`.
|
|
|
12160 |
arrayEach(['initial', 'rest'], function(methodName, index) {
|
|
|
12161 |
var dropName = 'drop' + (index ? '' : 'Right');
|
|
|
12162 |
|
|
|
12163 |
LazyWrapper.prototype[methodName] = function() {
|
|
|
12164 |
return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1);
|
|
|
12165 |
};
|
|
|
12166 |
});
|
|
|
12167 |
|
|
|
12168 |
// Add `LazyWrapper` methods for `_.pluck` and `_.where`.
|
|
|
12169 |
arrayEach(['pluck', 'where'], function(methodName, index) {
|
|
|
12170 |
var operationName = index ? 'filter' : 'map',
|
|
|
12171 |
createCallback = index ? baseMatches : property;
|
|
|
12172 |
|
|
|
12173 |
LazyWrapper.prototype[methodName] = function(value) {
|
|
|
12174 |
return this[operationName](createCallback(value));
|
|
442
|
12175 |
};
|
|
|
12176 |
});
|
|
|
12177 |
|
|
498
|
12178 |
LazyWrapper.prototype.compact = function() {
|
|
|
12179 |
return this.filter(identity);
|
|
|
12180 |
};
|
|
|
12181 |
|
|
|
12182 |
LazyWrapper.prototype.reject = function(predicate, thisArg) {
|
|
|
12183 |
predicate = getCallback(predicate, thisArg, 1);
|
|
|
12184 |
return this.filter(function(value) {
|
|
|
12185 |
return !predicate(value);
|
|
|
12186 |
});
|
|
|
12187 |
};
|
|
|
12188 |
|
|
|
12189 |
LazyWrapper.prototype.slice = function(start, end) {
|
|
|
12190 |
start = start == null ? 0 : (+start || 0);
|
|
|
12191 |
|
|
|
12192 |
var result = this;
|
|
|
12193 |
if (result.__filtered__ && (start > 0 || end < 0)) {
|
|
|
12194 |
return new LazyWrapper(result);
|
|
|
12195 |
}
|
|
|
12196 |
if (start < 0) {
|
|
|
12197 |
result = result.takeRight(-start);
|
|
|
12198 |
} else if (start) {
|
|
|
12199 |
result = result.drop(start);
|
|
|
12200 |
}
|
|
|
12201 |
if (end !== undefined) {
|
|
|
12202 |
end = (+end || 0);
|
|
|
12203 |
result = end < 0 ? result.dropRight(-end) : result.take(end - start);
|
|
|
12204 |
}
|
|
|
12205 |
return result;
|
|
|
12206 |
};
|
|
|
12207 |
|
|
|
12208 |
LazyWrapper.prototype.takeRightWhile = function(predicate, thisArg) {
|
|
|
12209 |
return this.reverse().takeWhile(predicate, thisArg).reverse();
|
|
|
12210 |
};
|
|
|
12211 |
|
|
|
12212 |
LazyWrapper.prototype.toArray = function() {
|
|
|
12213 |
return this.take(POSITIVE_INFINITY);
|
|
|
12214 |
};
|
|
|
12215 |
|
|
|
12216 |
// Add `LazyWrapper` methods to `lodash.prototype`.
|
|
|
12217 |
baseForOwn(LazyWrapper.prototype, function(func, methodName) {
|
|
|
12218 |
var checkIteratee = /^(?:filter|map|reject)|While$/.test(methodName),
|
|
|
12219 |
retUnwrapped = /^(?:first|last)$/.test(methodName),
|
|
|
12220 |
lodashFunc = lodash[retUnwrapped ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName];
|
|
|
12221 |
|
|
|
12222 |
if (!lodashFunc) {
|
|
|
12223 |
return;
|
|
|
12224 |
}
|
|
442
|
12225 |
lodash.prototype[methodName] = function() {
|
|
498
|
12226 |
var args = retUnwrapped ? [1] : arguments,
|
|
|
12227 |
chainAll = this.__chain__,
|
|
|
12228 |
value = this.__wrapped__,
|
|
|
12229 |
isHybrid = !!this.__actions__.length,
|
|
|
12230 |
isLazy = value instanceof LazyWrapper,
|
|
|
12231 |
iteratee = args[0],
|
|
|
12232 |
useLazy = isLazy || isArray(value);
|
|
|
12233 |
|
|
|
12234 |
if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) {
|
|
|
12235 |
// Avoid lazy use if the iteratee has a "length" value other than `1`.
|
|
|
12236 |
isLazy = useLazy = false;
|
|
|
12237 |
}
|
|
|
12238 |
var interceptor = function(value) {
|
|
|
12239 |
return (retUnwrapped && chainAll)
|
|
|
12240 |
? lodashFunc(value, 1)[0]
|
|
|
12241 |
: lodashFunc.apply(undefined, arrayPush([value], args));
|
|
|
12242 |
};
|
|
|
12243 |
|
|
|
12244 |
var action = { 'func': thru, 'args': [interceptor], 'thisArg': undefined },
|
|
|
12245 |
onlyLazy = isLazy && !isHybrid;
|
|
|
12246 |
|
|
|
12247 |
if (retUnwrapped && !chainAll) {
|
|
|
12248 |
if (onlyLazy) {
|
|
|
12249 |
value = value.clone();
|
|
|
12250 |
value.__actions__.push(action);
|
|
|
12251 |
return func.call(value);
|
|
|
12252 |
}
|
|
|
12253 |
return lodashFunc.call(undefined, this.value())[0];
|
|
|
12254 |
}
|
|
|
12255 |
if (!retUnwrapped && useLazy) {
|
|
|
12256 |
value = onlyLazy ? value : new LazyWrapper(this);
|
|
|
12257 |
var result = func.apply(value, args);
|
|
|
12258 |
result.__actions__.push(action);
|
|
|
12259 |
return new LodashWrapper(result, chainAll);
|
|
|
12260 |
}
|
|
|
12261 |
return this.thru(interceptor);
|
|
442
|
12262 |
};
|
|
|
12263 |
});
|
|
|
12264 |
|
|
498
|
12265 |
// Add `Array` and `String` methods to `lodash.prototype`.
|
|
|
12266 |
arrayEach(['join', 'pop', 'push', 'replace', 'shift', 'sort', 'splice', 'split', 'unshift'], function(methodName) {
|
|
|
12267 |
var func = (/^(?:replace|split)$/.test(methodName) ? stringProto : arrayProto)[methodName],
|
|
|
12268 |
chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru',
|
|
|
12269 |
retUnwrapped = /^(?:join|pop|replace|shift)$/.test(methodName);
|
|
|
12270 |
|
|
442
|
12271 |
lodash.prototype[methodName] = function() {
|
|
498
|
12272 |
var args = arguments;
|
|
|
12273 |
if (retUnwrapped && !this.__chain__) {
|
|
|
12274 |
return func.apply(this.value(), args);
|
|
|
12275 |
}
|
|
|
12276 |
return this[chainName](function(value) {
|
|
|
12277 |
return func.apply(value, args);
|
|
|
12278 |
});
|
|
442
|
12279 |
};
|
|
|
12280 |
});
|
|
|
12281 |
|
|
498
|
12282 |
// Map minified function names to their real names.
|
|
|
12283 |
baseForOwn(LazyWrapper.prototype, function(func, methodName) {
|
|
|
12284 |
var lodashFunc = lodash[methodName];
|
|
|
12285 |
if (lodashFunc) {
|
|
|
12286 |
var key = (lodashFunc.name + ''),
|
|
|
12287 |
names = realNames[key] || (realNames[key] = []);
|
|
|
12288 |
|
|
|
12289 |
names.push({ 'name': methodName, 'func': lodashFunc });
|
|
|
12290 |
}
|
|
|
12291 |
});
|
|
|
12292 |
|
|
|
12293 |
realNames[createHybridWrapper(undefined, BIND_KEY_FLAG).name] = [{ 'name': 'wrapper', 'func': undefined }];
|
|
|
12294 |
|
|
|
12295 |
// Add functions to the lazy wrapper.
|
|
|
12296 |
LazyWrapper.prototype.clone = lazyClone;
|
|
|
12297 |
LazyWrapper.prototype.reverse = lazyReverse;
|
|
|
12298 |
LazyWrapper.prototype.value = lazyValue;
|
|
|
12299 |
|
|
|
12300 |
// Add chaining functions to the `lodash` wrapper.
|
|
|
12301 |
lodash.prototype.chain = wrapperChain;
|
|
|
12302 |
lodash.prototype.commit = wrapperCommit;
|
|
|
12303 |
lodash.prototype.concat = wrapperConcat;
|
|
|
12304 |
lodash.prototype.plant = wrapperPlant;
|
|
|
12305 |
lodash.prototype.reverse = wrapperReverse;
|
|
|
12306 |
lodash.prototype.toString = wrapperToString;
|
|
|
12307 |
lodash.prototype.run = lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue;
|
|
|
12308 |
|
|
|
12309 |
// Add function aliases to the `lodash` wrapper.
|
|
|
12310 |
lodash.prototype.collect = lodash.prototype.map;
|
|
|
12311 |
lodash.prototype.head = lodash.prototype.first;
|
|
|
12312 |
lodash.prototype.select = lodash.prototype.filter;
|
|
|
12313 |
lodash.prototype.tail = lodash.prototype.rest;
|
|
|
12314 |
|
|
442
|
12315 |
return lodash;
|
|
|
12316 |
}
|
|
|
12317 |
|
|
|
12318 |
/*--------------------------------------------------------------------------*/
|
|
|
12319 |
|
|
498
|
12320 |
// Export lodash.
|
|
442
|
12321 |
var _ = runInContext();
|
|
|
12322 |
|
|
498
|
12323 |
// Some AMD build optimizers like r.js check for condition patterns like the following:
|
|
442
|
12324 |
if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
|
|
498
|
12325 |
// Expose lodash to the global object when an AMD loader is present to avoid
|
|
|
12326 |
// errors in cases where lodash is loaded by a script tag and not intended
|
|
|
12327 |
// as an AMD module. See http://requirejs.org/docs/errors.html#mismatch for
|
|
|
12328 |
// more details.
|
|
442
|
12329 |
root._ = _;
|
|
|
12330 |
|
|
498
|
12331 |
// Define as an anonymous module so, through path mapping, it can be
|
|
|
12332 |
// referenced as the "underscore" module.
|
|
442
|
12333 |
define(function() {
|
|
|
12334 |
return _;
|
|
|
12335 |
});
|
|
|
12336 |
}
|
|
498
|
12337 |
// Check for `exports` after `define` in case a build optimizer adds an `exports` object.
|
|
442
|
12338 |
else if (freeExports && freeModule) {
|
|
498
|
12339 |
// Export for Node.js or RingoJS.
|
|
442
|
12340 |
if (moduleExports) {
|
|
|
12341 |
(freeModule.exports = _)._ = _;
|
|
|
12342 |
}
|
|
498
|
12343 |
// Export for Rhino with CommonJS support.
|
|
442
|
12344 |
else {
|
|
|
12345 |
freeExports._ = _;
|
|
|
12346 |
}
|
|
|
12347 |
}
|
|
|
12348 |
else {
|
|
498
|
12349 |
// Export for a browser or Rhino.
|
|
442
|
12350 |
root._ = _;
|
|
|
12351 |
}
|
|
|
12352 |
}.call(this));
|