renkan: comparison server/php/basic/public_html/static/lib/lodash/lodash.compat.js

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server/php/basic/public_html/static/lib/lodash/lodash.compat.js

changeset 442	adb907bba956
child 456	a3bf10beb710

equal deleted inserted replaced

-:4732f078d0fe
+:adb907bba956
+/**
+* @license
+* Lo-Dash 2.4.1 (Custom Build) <http://lodash.com/>
+* Build: `lodash -o ./dist/lodash.compat.js`
+* Copyright 2012-2013 The Dojo Foundation <http://dojofoundation.org/>
+* Based on Underscore.js 1.5.2 <http://underscorejs.org/LICENSE>
+* Copyright 2009-2013 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+* Available under MIT license <http://lodash.com/license>
+*/
+;(function() {
+/** Used as a safe reference for `undefined` in pre ES5 environments */
+var undefined;
+/** Used to pool arrays and objects used internally */
+var arrayPool = [],
+objectPool = [];
+/** Used to generate unique IDs */
+var idCounter = 0;
+/** Used internally to indicate various things */
+var indicatorObject = {};
+/** Used to prefix keys to avoid issues with `__proto__` and properties on `Object.prototype` */
+var keyPrefix = +new Date + '';
+/** Used as the size when optimizations are enabled for large arrays */
+var largeArraySize = 75;
+/** Used as the max size of the `arrayPool` and `objectPool` */
+var maxPoolSize = 40;
+/** Used to detect and test whitespace */
+var whitespace = (
+// whitespace
+' \t\x0B\f\xA0\ufeff' +
+// line terminators
+'\n\r\u2028\u2029' +
+// unicode category "Zs" space separators
+'\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000'
+);
+/** Used to match empty string literals in compiled template source */
+var reEmptyStringLeading = /\b__p \+= '';/g,
+reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
+reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;
+/**
+* Used to match ES6 template delimiters
+* http://people.mozilla.org/~jorendorff/es6-draft.html#sec-literals-string-literals
+*/
+var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;
+/** Used to match regexp flags from their coerced string values */
+var reFlags = /\w*$/;
+/** Used to detected named functions */
+var reFuncName = /^\s*function[ \n\r\t]+\w/;
+/** Used to match "interpolate" template delimiters */
+var reInterpolate = /<%=([\s\S]+?)%>/g;
+/** Used to match leading whitespace and zeros to be removed */
+var reLeadingSpacesAndZeros = RegExp('^[' + whitespace + ']*0+(?=.$)');
+/** Used to ensure capturing order of template delimiters */
+var reNoMatch = /($^)/;
+/** Used to detect functions containing a `this` reference */
+var reThis = /\bthis\b/;
+/** Used to match unescaped characters in compiled string literals */
+var reUnescapedString = /['\n\r\t\u2028\u2029\\]/g;
+/** Used to assign default `context` object properties */
+var contextProps = [
+'Array', 'Boolean', 'Date', 'Error', 'Function', 'Math', 'Number', 'Object',
+'RegExp', 'String', '_', 'attachEvent', 'clearTimeout', 'isFinite', 'isNaN',
+'parseInt', 'setTimeout'
+];
+/** Used to fix the JScript [[DontEnum]] bug */
+var shadowedProps = [
+'constructor', 'hasOwnProperty', 'isPrototypeOf', 'propertyIsEnumerable',
+'toLocaleString', 'toString', 'valueOf'
+];
+/** Used to make template sourceURLs easier to identify */
+var templateCounter = 0;
+/** `Object#toString` result shortcuts */
+var argsClass = '[object Arguments]',
+arrayClass = '[object Array]',
+boolClass = '[object Boolean]',
+dateClass = '[object Date]',
+errorClass = '[object Error]',
+funcClass = '[object Function]',
+numberClass = '[object Number]',
+objectClass = '[object Object]',
+regexpClass = '[object RegExp]',
+stringClass = '[object String]';
+/** Used to identify object classifications that `_.clone` supports */
+var cloneableClasses = {};
+cloneableClasses[funcClass] = false;
+cloneableClasses[argsClass] = cloneableClasses[arrayClass] =
+cloneableClasses[boolClass] = cloneableClasses[dateClass] =
+cloneableClasses[numberClass] = cloneableClasses[objectClass] =
+cloneableClasses[regexpClass] = cloneableClasses[stringClass] = true;
+/** Used as an internal `_.debounce` options object */
+var debounceOptions = {
+'leading': false,
+'maxWait': 0,
+'trailing': false
+};
+/** Used as the property descriptor for `__bindData__` */
+var descriptor = {
+'configurable': false,
+'enumerable': false,
+'value': null,
+'writable': false
+};
+/** Used as the data object for `iteratorTemplate` */
+var iteratorData = {
+'args': '',
+'array': null,
+'bottom': '',
+'firstArg': '',
+'init': '',
+'keys': null,
+'loop': '',
+'shadowedProps': null,
+'support': null,
+'top': '',
+'useHas': false
+};
+/** Used to determine if values are of the language type Object */
+var objectTypes = {
+'boolean': false,
+'function': true,
+'object': true,
+'number': false,
+'string': false,
+'undefined': false
+};
+/** Used to escape characters for inclusion in compiled string literals */
+var stringEscapes = {
+'\\': '\\',
+"'": "'",
+'\n': 'n',
+'\r': 'r',
+'\t': 't',
+'\u2028': 'u2028',
+'\u2029': 'u2029'
+};
+/** Used as a reference to the global object */
+var root = (objectTypes[typeof window] && window) || this;
+/** Detect free variable `exports` */
+var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports;
+/** Detect free variable `module` */
+var freeModule = objectTypes[typeof module] && module && !module.nodeType && module;
+/** Detect the popular CommonJS extension `module.exports` */
+var moduleExports = freeModule && freeModule.exports === freeExports && freeExports;
+/** Detect free variable `global` from Node.js or Browserified code and use it as `root` */
+var freeGlobal = objectTypes[typeof global] && global;
+if (freeGlobal && (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal)) {
+root = freeGlobal;
+}
+/*--------------------------------------------------------------------------*/
+/**
+* The base implementation of `_.indexOf` without support for binary searches
+* or `fromIndex` constraints.
+*
+* @private
+* @param {Array} array The array to search.
+* @param {*} value The value to search for.
+* @param {number} [fromIndex=0] The index to search from.
+* @returns {number} Returns the index of the matched value or `-1`.
+*/
+function baseIndexOf(array, value, fromIndex) {
+var index = (fromIndex || 0) - 1,
+length = array ? array.length : 0;
+while (++index < length) {
+if (array[index] === value) {
+return index;
+}
+}
+return -1;
+}
+/**
+* An implementation of `_.contains` for cache objects that mimics the return
+* signature of `_.indexOf` by returning `0` if the value is found, else `-1`.
+*
+* @private
+* @param {Object} cache The cache object to inspect.
+* @param {*} value The value to search for.
+* @returns {number} Returns `0` if `value` is found, else `-1`.
+*/
+function cacheIndexOf(cache, value) {
+var type = typeof value;
+cache = cache.cache;
+if (type == 'boolean' || value == null) {
+return cache[value] ? 0 : -1;
+}
+if (type != 'number' && type != 'string') {
+type = 'object';
+}
+var key = type == 'number' ? value : keyPrefix + value;
+cache = (cache = cache[type]) && cache[key];
+return type == 'object'
+? (cache && baseIndexOf(cache, value) > -1 ? 0 : -1)
+: (cache ? 0 : -1);
+}
+/**
+* Adds a given value to the corresponding cache object.
+*
+* @private
+* @param {*} value The value to add to the cache.
+*/
+function cachePush(value) {
+var cache = this.cache,
+type = typeof value;
+if (type == 'boolean' || value == null) {
+cache[value] = true;
+} else {
+if (type != 'number' && type != 'string') {
+type = 'object';
+}
+var key = type == 'number' ? value : keyPrefix + value,
+typeCache = cache[type] || (cache[type] = {});
+if (type == 'object') {
+(typeCache[key] || (typeCache[key] = [])).push(value);
+} else {
+typeCache[key] = true;
+}
+}
+}
+/**
+* Used by `_.max` and `_.min` as the default callback when a given
+* collection is a string value.
+*
+* @private
+* @param {string} value The character to inspect.
+* @returns {number} Returns the code unit of given character.
+*/
+function charAtCallback(value) {
+return value.charCodeAt(0);
+}
+/**
+* Used by `sortBy` to compare transformed `collection` elements, stable sorting
+* them in ascending order.
+*
+* @private
+* @param {Object} a The object to compare to `b`.
+* @param {Object} b The object to compare to `a`.
+* @returns {number} Returns the sort order indicator of `1` or `-1`.
+*/
+function compareAscending(a, b) {
+var ac = a.criteria,
+bc = b.criteria,
+index = -1,
+length = ac.length;
+while (++index < length) {
+var value = ac[index],
+other = bc[index];
+if (value !== other) {
+if (value > other || typeof value == 'undefined') {
+return 1;
+}
+if (value < other || typeof other == 'undefined') {
+return -1;
+}
+}
+}
+// Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
+// that causes it, under certain circumstances, to return the same value for
+// `a` and `b`. See https://github.com/jashkenas/underscore/pull/1247
+//
+// This also ensures a stable sort in V8 and other engines.
+// See http://code.google.com/p/v8/issues/detail?id=90
+return a.index - b.index;
+}
+/**
+* Creates a cache object to optimize linear searches of large arrays.
+*
+* @private
+* @param {Array} [array=[]] The array to search.
+* @returns {null|Object} Returns the cache object or `null` if caching should not be used.
+*/
+function createCache(array) {
+var index = -1,
+length = array.length,
+first = array[0],
+mid = array[(length / 2) | 0],
+last = array[length - 1];
+if (first && typeof first == 'object' &&
+mid && typeof mid == 'object' && last && typeof last == 'object') {
+return false;
+}
+var cache = getObject();
+cache['false'] = cache['null'] = cache['true'] = cache['undefined'] = false;
+var result = getObject();
+result.array = array;
+result.cache = cache;
+result.push = cachePush;
+while (++index < length) {
+result.push(array[index]);
+}
+return result;
+}
+/**
+* Used by `template` to escape characters for inclusion in compiled
+* string literals.
+*
+* @private
+* @param {string} match The matched character to escape.
+* @returns {string} Returns the escaped character.
+*/
+function escapeStringChar(match) {
+return '\\' + stringEscapes[match];
+}
+/**
+* Gets an array from the array pool or creates a new one if the pool is empty.
+*
+* @private
+* @returns {Array} The array from the pool.
+*/
+function getArray() {
+return arrayPool.pop() || [];
+}
+/**
+* Gets an object from the object pool or creates a new one if the pool is empty.
+*
+* @private
+* @returns {Object} The object from the pool.
+*/
+function getObject() {
+return objectPool.pop() || {
+'array': null,
+'cache': null,
+'criteria': null,
+'false': false,
+'index': 0,
+'null': false,
+'number': null,
+'object': null,
+'push': null,
+'string': null,
+'true': false,
+'undefined': false,
+'value': null
+};
+}
+/**
+* Checks if `value` is a DOM node in IE < 9.
+*
+* @private
+* @param {*} value The value to check.
+* @returns {boolean} Returns `true` if the `value` is a DOM node, else `false`.
+*/
+function isNode(value) {
+// IE < 9 presents DOM nodes as `Object` objects except they have `toString`
+// methods that are `typeof` "string" and still can coerce nodes to strings
+return typeof value.toString != 'function' && typeof (value + '') == 'string';
+}
+/**
+* Releases the given array back to the array pool.
+*
+* @private
+* @param {Array} [array] The array to release.
+*/
+function releaseArray(array) {
+array.length = 0;
+if (arrayPool.length < maxPoolSize) {
+arrayPool.push(array);
+}
+}
+/**
+* Releases the given object back to the object pool.
+*
+* @private
+* @param {Object} [object] The object to release.
+*/
+function releaseObject(object) {
+var cache = object.cache;
+if (cache) {
+releaseObject(cache);
+}
+object.array = object.cache = object.criteria = object.object = object.number = object.string = object.value = null;
+if (objectPool.length < maxPoolSize) {
+objectPool.push(object);
+}
+}
+/**
+* Slices the `collection` from the `start` index up to, but not including,
+* the `end` index.
+*
+* Note: This function is used instead of `Array#slice` to support node lists
+* in IE < 9 and to ensure dense arrays are returned.
+*
+* @private
+* @param {Array|Object|string} collection The collection to slice.
+* @param {number} start The start index.
+* @param {number} end The end index.
+* @returns {Array} Returns the new array.
+*/
+function slice(array, start, end) {
+start || (start = 0);
+if (typeof end == 'undefined') {
+end = array ? array.length : 0;
+}
+var index = -1,
+length = end - start || 0,
+result = Array(length < 0 ? 0 : length);
+while (++index < length) {
+result[index] = array[start + index];
+}
+return result;
+}
+/*--------------------------------------------------------------------------*/
+/**
+* Create a new `lodash` function using the given context object.
+*
+* @static
+* @memberOf _
+* @category Utilities
+* @param {Object} [context=root] The context object.
+* @returns {Function} Returns the `lodash` function.
+*/
+function runInContext(context) {
+// Avoid issues with some ES3 environments that attempt to use values, named
+// after built-in constructors like `Object`, for the creation of literals.
+// ES5 clears this up by stating that literals must use built-in constructors.
+// See http://es5.github.io/#x11.1.5.
+context = context ? _.defaults(root.Object(), context, _.pick(root, contextProps)) : root;
+/** Native constructor references */
+var Array = context.Array,
+Boolean = context.Boolean,
+Date = context.Date,
+Error = context.Error,
+Function = context.Function,
+Math = context.Math,
+Number = context.Number,
+Object = context.Object,
+RegExp = context.RegExp,
+String = context.String,
+TypeError = context.TypeError;
+/**
+* Used for `Array` method references.
+*
+* Normally `Array.prototype` would suffice, however, using an array literal
+* avoids issues in Narwhal.
+*/
+var arrayRef = [];
+/** Used for native method references */
+var errorProto = Error.prototype,
+objectProto = Object.prototype,
+stringProto = String.prototype;
+/** Used to restore the original `_` reference in `noConflict` */
+var oldDash = context._;
+/** Used to resolve the internal [[Class]] of values */
+var toString = objectProto.toString;
+/** Used to detect if a method is native */
+var reNative = RegExp('^' +
+String(toString)
+.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
+.replace(/toString| for [^\]]+/g, '.*?') + '$'
+);
+/** Native method shortcuts */
+var ceil = Math.ceil,
+clearTimeout = context.clearTimeout,
+floor = Math.floor,
+fnToString = Function.prototype.toString,
+getPrototypeOf = isNative(getPrototypeOf = Object.getPrototypeOf) && getPrototypeOf,
+hasOwnProperty = objectProto.hasOwnProperty,
+push = arrayRef.push,
+propertyIsEnumerable = objectProto.propertyIsEnumerable,
+setTimeout = context.setTimeout,
+splice = arrayRef.splice,
+unshift = arrayRef.unshift;
+/** Used to set meta data on functions */
+var defineProperty = (function() {
+// IE 8 only accepts DOM elements
+try {
+var o = {},
+func = isNative(func = Object.defineProperty) && func,
+result = func(o, o, o) && func;
+} catch(e) { }
+return result;
+}());
+/* Native method shortcuts for methods with the same name as other `lodash` methods */
+var nativeCreate = isNative(nativeCreate = Object.create) && nativeCreate,
+nativeIsArray = isNative(nativeIsArray = Array.isArray) && nativeIsArray,
+nativeIsFinite = context.isFinite,
+nativeIsNaN = context.isNaN,
+nativeKeys = isNative(nativeKeys = Object.keys) && nativeKeys,
+nativeMax = Math.max,
+nativeMin = Math.min,
+nativeParseInt = context.parseInt,
+nativeRandom = Math.random;
+/** Used to lookup a built-in constructor by [[Class]] */
+var ctorByClass = {};
+ctorByClass[arrayClass] = Array;
+ctorByClass[boolClass] = Boolean;
+ctorByClass[dateClass] = Date;
+ctorByClass[funcClass] = Function;
+ctorByClass[objectClass] = Object;
+ctorByClass[numberClass] = Number;
+ctorByClass[regexpClass] = RegExp;
+ctorByClass[stringClass] = String;
+/** Used to avoid iterating non-enumerable properties in IE < 9 */
+var nonEnumProps = {};
+nonEnumProps[arrayClass] = nonEnumProps[dateClass] = nonEnumProps[numberClass] = { 'constructor': true, 'toLocaleString': true, 'toString': true, 'valueOf': true };
+nonEnumProps[boolClass] = nonEnumProps[stringClass] = { 'constructor': true, 'toString': true, 'valueOf': true };
+nonEnumProps[errorClass] = nonEnumProps[funcClass] = nonEnumProps[regexpClass] = { 'constructor': true, 'toString': true };
+nonEnumProps[objectClass] = { 'constructor': true };
+(function() {
+var length = shadowedProps.length;
+while (length--) {
+var key = shadowedProps[length];
+for (var className in nonEnumProps) {
+if (hasOwnProperty.call(nonEnumProps, className) && !hasOwnProperty.call(nonEnumProps[className], key)) {
+nonEnumProps[className][key] = false;
+}
+}
+}
+}());
+/*--------------------------------------------------------------------------*/
+/**
+* Creates a `lodash` object which wraps the given value to enable intuitive
+* method chaining.
+*
+* In addition to Lo-Dash methods, wrappers also have the following `Array` methods:
+* `concat`, `join`, `pop`, `push`, `reverse`, `shift`, `slice`, `sort`, `splice`,
+* and `unshift`
+*
+* Chaining is supported in custom builds as long as the `value` method is
+* implicitly or explicitly included in the build.
+*
+* The chainable wrapper functions are:
+* `after`, `assign`, `bind`, `bindAll`, `bindKey`, `chain`, `compact`,
+* `compose`, `concat`, `countBy`, `create`, `createCallback`, `curry`,
+* `debounce`, `defaults`, `defer`, `delay`, `difference`, `filter`, `flatten`,
+* `forEach`, `forEachRight`, `forIn`, `forInRight`, `forOwn`, `forOwnRight`,
+* `functions`, `groupBy`, `indexBy`, `initial`, `intersection`, `invert`,
+* `invoke`, `keys`, `map`, `max`, `memoize`, `merge`, `min`, `object`, `omit`,
+* `once`, `pairs`, `partial`, `partialRight`, `pick`, `pluck`, `pull`, `push`,
+* `range`, `reject`, `remove`, `rest`, `reverse`, `shuffle`, `slice`, `sort`,
+* `sortBy`, `splice`, `tap`, `throttle`, `times`, `toArray`, `transform`,
+* `union`, `uniq`, `unshift`, `unzip`, `values`, `where`, `without`, `wrap`,
+* and `zip`
+*
+* The non-chainable wrapper functions are:
+* `clone`, `cloneDeep`, `contains`, `escape`, `every`, `find`, `findIndex`,
+* `findKey`, `findLast`, `findLastIndex`, `findLastKey`, `has`, `identity`,
+* `indexOf`, `isArguments`, `isArray`, `isBoolean`, `isDate`, `isElement`,
+* `isEmpty`, `isEqual`, `isFinite`, `isFunction`, `isNaN`, `isNull`, `isNumber`,
+* `isObject`, `isPlainObject`, `isRegExp`, `isString`, `isUndefined`, `join`,
+* `lastIndexOf`, `mixin`, `noConflict`, `parseInt`, `pop`, `random`, `reduce`,
+* `reduceRight`, `result`, `shift`, `size`, `some`, `sortedIndex`, `runInContext`,
+* `template`, `unescape`, `uniqueId`, and `value`
+*
+* The wrapper functions `first` and `last` return wrapped values when `n` is
+* provided, otherwise they return unwrapped values.
+*
+* Explicit chaining can be enabled by using the `_.chain` method.
+*
+* @name _
+* @constructor
+* @category Chaining
+* @param {*} value The value to wrap in a `lodash` instance.
+* @returns {Object} Returns a `lodash` instance.
+* @example
+*
+* var wrapped = _([1, 2, 3]);
+*
+* // returns an unwrapped value
+* wrapped.reduce(function(sum, num) {
+*   return sum + num;
+* });
+* // => 6
+*
+* // returns a wrapped value
+* var squares = wrapped.map(function(num) {
+*   return num * num;
+* });
+*
+* _.isArray(squares);
+* // => false
+*
+* _.isArray(squares.value());
+* // => true
+*/
+function lodash(value) {
+// don't wrap if already wrapped, even if wrapped by a different `lodash` constructor
+return (value && typeof value == 'object' && !isArray(value) && hasOwnProperty.call(value, '__wrapped__'))
+? value
+: new lodashWrapper(value);
+}
+/**
+* A fast path for creating `lodash` wrapper objects.
+*
+* @private
+* @param {*} value The value to wrap in a `lodash` instance.
+* @param {boolean} chainAll A flag to enable chaining for all methods
+* @returns {Object} Returns a `lodash` instance.
+*/
+function lodashWrapper(value, chainAll) {
+this.__chain__ = !!chainAll;
+this.__wrapped__ = value;
+}
+// ensure `new lodashWrapper` is an instance of `lodash`
+lodashWrapper.prototype = lodash.prototype;
+/**
+* An object used to flag environments features.
+*
+* @static
+* @memberOf _
+* @type Object
+*/
+var support = lodash.support = {};
+(function() {
+var ctor = function() { this.x = 1; },
+object = { '0': 1, 'length': 1 },
+props = [];
+ctor.prototype = { 'valueOf': 1, 'y': 1 };
+for (var key in new ctor) { props.push(key); }
+for (key in arguments) { }
+/**
+* Detect if an `arguments` object's [[Class]] is resolvable (all but Firefox < 4, IE < 9).
+*
+* @memberOf _.support
+* @type boolean
+*/
+support.argsClass = toString.call(arguments) == argsClass;
+/**
+* Detect if `arguments` objects are `Object` objects (all but Narwhal and Opera < 10.5).
+*
+* @memberOf _.support
+* @type boolean
+*/
+support.argsObject = arguments.constructor == Object && !(arguments instanceof Array);
+/**
+* Detect if `name` or `message` properties of `Error.prototype` are
+* enumerable by default. (IE < 9, Safari < 5.1)
+*
+* @memberOf _.support
+* @type boolean
+*/
+support.enumErrorProps = propertyIsEnumerable.call(errorProto, 'message') || propertyIsEnumerable.call(errorProto, 'name');
+/**
+* Detect if `prototype` properties are enumerable by default.
+*
+* Firefox < 3.6, Opera > 9.50 - Opera < 11.60, and Safari < 5.1
+* (if the prototype or a property on the prototype has been set)
+* incorrectly sets a function's `prototype` property [[Enumerable]]
+* value to `true`.
+*
+* @memberOf _.support
+* @type boolean
+*/
+support.enumPrototypes = propertyIsEnumerable.call(ctor, 'prototype');
+/**
+* Detect if functions can be decompiled by `Function#toString`
+* (all but PS3 and older Opera mobile browsers & avoided in Windows 8 apps).
+*
+* @memberOf _.support
+* @type boolean
+*/
+support.funcDecomp = !isNative(context.WinRTError) && reThis.test(runInContext);
+/**
+* Detect if `Function#name` is supported (all but IE).
+*
+* @memberOf _.support
+* @type boolean
+*/
+support.funcNames = typeof Function.name == 'string';
+/**
+* Detect if `arguments` object indexes are non-enumerable
+* (Firefox < 4, IE < 9, PhantomJS, Safari < 5.1).
+*
+* @memberOf _.support
+* @type boolean
+*/
+support.nonEnumArgs = key != 0;
+/**
+* Detect if properties shadowing those on `Object.prototype` are non-enumerable.
+*
+* In IE < 9 an objects own properties, shadowing non-enumerable ones, are
+* made non-enumerable as well (a.k.a the JScript [[DontEnum]] bug).
+*
+* @memberOf _.support
+* @type boolean
+*/
+support.nonEnumShadows = !/valueOf/.test(props);
+/**
+* Detect if own properties are iterated after inherited properties (all but IE < 9).
+*
+* @memberOf _.support
+* @type boolean
+*/
+support.ownLast = props[0] != 'x';
+/**
+* Detect if `Array#shift` and `Array#splice` augment array-like objects correctly.
+*
+* Firefox < 10, IE compatibility mode, and IE < 9 have buggy Array `shift()`
+* and `splice()` functions that fail to remove the last element, `value[0]`,
+* of array-like objects even though the `length` property is set to `0`.
+* The `shift()` method is buggy in IE 8 compatibility mode, while `splice()`
+* is buggy regardless of mode in IE < 9 and buggy in compatibility mode in IE 9.
+*
+* @memberOf _.support
+* @type boolean
+*/
+support.spliceObjects = (arrayRef.splice.call(object, 0, 1), !object[0]);
+/**
+* Detect lack of support for accessing string characters by index.
+*
+* IE < 8 can't access characters by index and IE 8 can only access
+* characters by index on string literals.
+*
+* @memberOf _.support
+* @type boolean
+*/
+support.unindexedChars = ('x'[0] + Object('x')[0]) != 'xx';
+/**
+* Detect if a DOM node's [[Class]] is resolvable (all but IE < 9)
+* and that the JS engine errors when attempting to coerce an object to
+* a string without a `toString` function.
+*
+* @memberOf _.support
+* @type boolean
+*/
+try {
+support.nodeClass = !(toString.call(document) == objectClass && !({ 'toString': 0 } + ''));
+} catch(e) {
+support.nodeClass = true;
+}
+}(1));
+/**
+* By default, the template delimiters used by Lo-Dash are similar to those in
+* embedded Ruby (ERB). Change the following template settings to use alternative
+* delimiters.
+*
+* @static
+* @memberOf _
+* @type Object
+*/
+lodash.templateSettings = {
+/**
+* Used to detect `data` property values to be HTML-escaped.
+*
+* @memberOf _.templateSettings
+* @type RegExp
+*/
+'escape': /<%-([\s\S]+?)%>/g,
+/**
+* Used to detect code to be evaluated.
+*
+* @memberOf _.templateSettings
+* @type RegExp
+*/
+'evaluate': /<%([\s\S]+?)%>/g,
+/**
+* Used to detect `data` property values to inject.
+*
+* @memberOf _.templateSettings
+* @type RegExp
+*/
+'interpolate': reInterpolate,
+/**
+* Used to reference the data object in the template text.
+*
+* @memberOf _.templateSettings
+* @type string
+*/
+'variable': '',
+/**
+* Used to import variables into the compiled template.
+*
+* @memberOf _.templateSettings
+* @type Object
+*/
+'imports': {
+/**
+* A reference to the `lodash` function.
+*
+* @memberOf _.templateSettings.imports
+* @type Function
+*/
+'_': lodash
+}
+};
+/*--------------------------------------------------------------------------*/
+/**
+* The template used to create iterator functions.
+*
+* @private
+* @param {Object} data The data object used to populate the text.
+* @returns {string} Returns the interpolated text.
+*/
+var iteratorTemplate = function(obj) {
+var __p = 'var index, iterable = ' +
+(obj.firstArg) +
+', result = ' +
+(obj.init) +
+';\nif (!iterable) return result;\n' +
+(obj.top) +
+';';
+if (obj.array) {
+__p += '\nvar length = iterable.length; index = -1;\nif (' +
+(obj.array) +
+') {  ';
+if (support.unindexedChars) {
+__p += '\n  if (isString(iterable)) {\n    iterable = iterable.split(\'\')\n  }  ';
+}
+__p += '\n  while (++index < length) {\n    ' +
+(obj.loop) +
+';\n  }\n}\nelse {  ';
+} else if (support.nonEnumArgs) {
+__p += '\n  var length = iterable.length; index = -1;\n  if (length && isArguments(iterable)) {\n    while (++index < length) {\n      index += \'\';\n      ' +
+(obj.loop) +
+';\n    }\n  } else {  ';
+}
+if (support.enumPrototypes) {
+__p += '\n  var skipProto = typeof iterable == \'function\';\n  ';
+}
+if (support.enumErrorProps) {
+__p += '\n  var skipErrorProps = iterable === errorProto || iterable instanceof Error;\n  ';
+}
+var conditions = [];    if (support.enumPrototypes) { conditions.push('!(skipProto && index == "prototype")'); }    if (support.enumErrorProps)  { conditions.push('!(skipErrorProps && (index == "message" || index == "name"))'); }
+if (obj.useHas && obj.keys) {
+__p += '\n  var ownIndex = -1,\n      ownProps = objectTypes[typeof iterable] && keys(iterable),\n      length = ownProps ? ownProps.length : 0;\n\n  while (++ownIndex < length) {\n    index = ownProps[ownIndex];\n';
+if (conditions.length) {
+__p += '    if (' +
+(conditions.join(' && ')) +
+') {\n  ';
+}
+__p +=
+(obj.loop) +
+';    ';
+if (conditions.length) {
+__p += '\n    }';
+}
+__p += '\n  }  ';
+} else {
+__p += '\n  for (index in iterable) {\n';
+if (obj.useHas) { conditions.push("hasOwnProperty.call(iterable, index)"); }    if (conditions.length) {
+__p += '    if (' +
+(conditions.join(' && ')) +
+') {\n  ';
+}
+__p +=
+(obj.loop) +
+';    ';
+if (conditions.length) {
+__p += '\n    }';
+}
+__p += '\n  }    ';
+if (support.nonEnumShadows) {
+__p += '\n\n  if (iterable !== objectProto) {\n    var ctor = iterable.constructor,\n        isProto = iterable === (ctor && ctor.prototype),\n        className = iterable === stringProto ? stringClass : iterable === errorProto ? errorClass : toString.call(iterable),\n        nonEnum = nonEnumProps[className];\n      ';
+for (k = 0; k < 7; k++) {
+__p += '\n    index = \'' +
+(obj.shadowedProps[k]) +
+'\';\n    if ((!(isProto && nonEnum[index]) && hasOwnProperty.call(iterable, index))';
+if (!obj.useHas) {
+__p += ' || (!nonEnum[index] && iterable[index] !== objectProto[index])';
+}
+__p += ') {\n      ' +
+(obj.loop) +
+';\n    }      ';
+}
+__p += '\n  }    ';
+}
+}
+if (obj.array || support.nonEnumArgs) {
+__p += '\n}';
+}
+__p +=
+(obj.bottom) +
+';\nreturn result';
+return __p
+};
+/*--------------------------------------------------------------------------*/
+/**
+* The base implementation of `_.bind` that creates the bound function and
+* sets its meta data.
+*
+* @private
+* @param {Array} bindData The bind data array.
+* @returns {Function} Returns the new bound function.
+*/
+function baseBind(bindData) {
+var func = bindData[0],
+partialArgs = bindData[2],
+thisArg = bindData[4];
+function bound() {
+// `Function#bind` spec
+// http://es5.github.io/#x15.3.4.5
+if (partialArgs) {
+// avoid `arguments` object deoptimizations by using `slice` instead
+// of `Array.prototype.slice.call` and not assigning `arguments` to a
+// variable as a ternary expression
+var args = slice(partialArgs);
+push.apply(args, arguments);
+}
+// mimic the constructor's `return` behavior
+// http://es5.github.io/#x13.2.2
+if (this instanceof bound) {
+// ensure `new bound` is an instance of `func`
+var thisBinding = baseCreate(func.prototype),
+result = func.apply(thisBinding, args || arguments);
+return isObject(result) ? result : thisBinding;
+}
+return func.apply(thisArg, args || arguments);
+}
+setBindData(bound, bindData);
+return bound;
+}
+/**
+* The base implementation of `_.clone` without argument juggling or support
+* for `thisArg` binding.
+*
+* @private
+* @param {*} value The value to clone.
+* @param {boolean} [isDeep=false] Specify a deep clone.
+* @param {Function} [callback] The function to customize cloning values.
+* @param {Array} [stackA=[]] Tracks traversed source objects.
+* @param {Array} [stackB=[]] Associates clones with source counterparts.
+* @returns {*} Returns the cloned value.
+*/
+function baseClone(value, isDeep, callback, stackA, stackB) {
+if (callback) {
+var result = callback(value);
+if (typeof result != 'undefined') {
+return result;
+}
+}
+// inspect [[Class]]
+var isObj = isObject(value);
+if (isObj) {
+var className = toString.call(value);
+if (!cloneableClasses[className] || (!support.nodeClass && isNode(value))) {
+return value;
+}
+var ctor = ctorByClass[className];
+switch (className) {
+case boolClass:
+case dateClass:
+return new ctor(+value);
+case numberClass:
+case stringClass:
+return new ctor(value);
+case regexpClass:
+result = ctor(value.source, reFlags.exec(value));
+result.lastIndex = value.lastIndex;
+return result;
+}
+} else {
+return value;
+}
+var isArr = isArray(value);
+if (isDeep) {
+// check for circular references and return corresponding clone
+var initedStack = !stackA;
+stackA || (stackA = getArray());
+stackB || (stackB = getArray());
+var length = stackA.length;
+while (length--) {
+if (stackA[length] == value) {
+return stackB[length];
+}
+}
+result = isArr ? ctor(value.length) : {};
+}
+else {
+result = isArr ? slice(value) : assign({}, value);
+}
+// add array properties assigned by `RegExp#exec`
+if (isArr) {
+if (hasOwnProperty.call(value, 'index')) {
+result.index = value.index;
+}
+if (hasOwnProperty.call(value, 'input')) {
+result.input = value.input;
+}
+}
+// exit for shallow clone
+if (!isDeep) {
+return result;
+}
+// add the source value to the stack of traversed objects
+// and associate it with its clone
+stackA.push(value);
+stackB.push(result);
+// recursively populate clone (susceptible to call stack limits)
+(isArr ? baseEach : forOwn)(value, function(objValue, key) {
+result[key] = baseClone(objValue, isDeep, callback, stackA, stackB);
+});
+if (initedStack) {
+releaseArray(stackA);
+releaseArray(stackB);
+}
+return result;
+}
+/**
+* The base implementation of `_.create` without support for assigning
+* properties to the created object.
+*
+* @private
+* @param {Object} prototype The object to inherit from.
+* @returns {Object} Returns the new object.
+*/
+function baseCreate(prototype, properties) {
+return isObject(prototype) ? nativeCreate(prototype) : {};
+}
+// fallback for browsers without `Object.create`
+if (!nativeCreate) {
+baseCreate = (function() {
+function Object() {}
+return function(prototype) {
+if (isObject(prototype)) {
+Object.prototype = prototype;
+var result = new Object;
+Object.prototype = null;
+}
+return result || context.Object();
+};
+}());
+}
+/**
+* The base implementation of `_.createCallback` without support for creating
+* "_.pluck" or "_.where" style callbacks.
+*
+* @private
+* @param {*} [func=identity] The value to convert to a callback.
+* @param {*} [thisArg] The `this` binding of the created callback.
+* @param {number} [argCount] The number of arguments the callback accepts.
+* @returns {Function} Returns a callback function.
+*/
+function baseCreateCallback(func, thisArg, argCount) {
+if (typeof func != 'function') {
+return identity;
+}
+// exit early for no `thisArg` or already bound by `Function#bind`
+if (typeof thisArg == 'undefined' || !('prototype' in func)) {
+return func;
+}
+var bindData = func.__bindData__;
+if (typeof bindData == 'undefined') {
+if (support.funcNames) {
+bindData = !func.name;
+}
+bindData = bindData || !support.funcDecomp;
+if (!bindData) {
+var source = fnToString.call(func);
+if (!support.funcNames) {
+bindData = !reFuncName.test(source);
+}
+if (!bindData) {
+// checks if `func` references the `this` keyword and stores the result
+bindData = reThis.test(source);
+setBindData(func, bindData);
+}
+}
+}
+// exit early if there are no `this` references or `func` is bound
+if (bindData === false || (bindData !== true && bindData[1] & 1)) {
+return func;
+}
+switch (argCount) {
+case 1: return function(value) {
+return func.call(thisArg, value);
+};
+case 2: return function(a, b) {
+return func.call(thisArg, a, b);
+};
+case 3: return function(value, index, collection) {
+return func.call(thisArg, value, index, collection);
+};
+case 4: return function(accumulator, value, index, collection) {
+return func.call(thisArg, accumulator, value, index, collection);
+};
+}
+return bind(func, thisArg);
+}
+/**
+* The base implementation of `createWrapper` that creates the wrapper and
+* sets its meta data.
+*
+* @private
+* @param {Array} bindData The bind data array.
+* @returns {Function} Returns the new function.
+*/
+function baseCreateWrapper(bindData) {
+var func = bindData[0],
+bitmask = bindData[1],
+partialArgs = bindData[2],
+partialRightArgs = bindData[3],
+thisArg = bindData[4],
+arity = bindData[5];
+var isBind = bitmask & 1,
+isBindKey = bitmask & 2,
+isCurry = bitmask & 4,
+isCurryBound = bitmask & 8,
+key = func;
+function bound() {
+var thisBinding = isBind ? thisArg : this;
+if (partialArgs) {
+var args = slice(partialArgs);
+push.apply(args, arguments);
+}
+if (partialRightArgs || isCurry) {
+args || (args = slice(arguments));
+if (partialRightArgs) {
+push.apply(args, partialRightArgs);
+}
+if (isCurry && args.length < arity) {
+bitmask |= 16 & ~32;
+return baseCreateWrapper([func, (isCurryBound ? bitmask : bitmask & ~3), args, null, thisArg, arity]);
+}
+}
+args || (args = arguments);
+if (isBindKey) {
+func = thisBinding[key];
+}
+if (this instanceof bound) {
+thisBinding = baseCreate(func.prototype);
+var result = func.apply(thisBinding, args);
+return isObject(result) ? result : thisBinding;
+}
+return func.apply(thisBinding, args);
+}
+setBindData(bound, bindData);
+return bound;
+}
+/**
+* The base implementation of `_.difference` that accepts a single array
+* of values to exclude.
+*
+* @private
+* @param {Array} array The array to process.
+* @param {Array} [values] The array of values to exclude.
+* @returns {Array} Returns a new array of filtered values.
+*/
+function baseDifference(array, values) {
+var index = -1,
+indexOf = getIndexOf(),
+length = array ? array.length : 0,
+isLarge = length >= largeArraySize && indexOf === baseIndexOf,
+result = [];
+if (isLarge) {
+var cache = createCache(values);
+if (cache) {
+indexOf = cacheIndexOf;
+values = cache;
+} else {
+isLarge = false;
+}
+}
+while (++index < length) {
+var value = array[index];
+if (indexOf(values, value) < 0) {
+result.push(value);
+}
+}
+if (isLarge) {
+releaseObject(values);
+}
+return result;
+}
+/**
+* The base implementation of `_.flatten` without support for callback
+* shorthands or `thisArg` binding.
+*
+* @private
+* @param {Array} array The array to flatten.
+* @param {boolean} [isShallow=false] A flag to restrict flattening to a single level.
+* @param {boolean} [isStrict=false] A flag to restrict flattening to arrays and `arguments` objects.
+* @param {number} [fromIndex=0] The index to start from.
+* @returns {Array} Returns a new flattened array.
+*/
+function baseFlatten(array, isShallow, isStrict, fromIndex) {
+var index = (fromIndex || 0) - 1,
+length = array ? array.length : 0,
+result = [];
+while (++index < length) {
+var value = array[index];
+if (value && typeof value == 'object' && typeof value.length == 'number'
+&& (isArray(value) || isArguments(value))) {
+// recursively flatten arrays (susceptible to call stack limits)
+if (!isShallow) {
+value = baseFlatten(value, isShallow, isStrict);
+}
+var valIndex = -1,
+valLength = value.length,
+resIndex = result.length;
+result.length += valLength;
+while (++valIndex < valLength) {
+result[resIndex++] = value[valIndex];
+}
+} else if (!isStrict) {
+result.push(value);
+}
+}
+return result;
+}
+/**
+* The base implementation of `_.isEqual`, without support for `thisArg` binding,
+* that allows partial "_.where" style comparisons.
+*
+* @private
+* @param {*} a The value to compare.
+* @param {*} b The other value to compare.
+* @param {Function} [callback] The function to customize comparing values.
+* @param {Function} [isWhere=false] A flag to indicate performing partial comparisons.
+* @param {Array} [stackA=[]] Tracks traversed `a` objects.
+* @param {Array} [stackB=[]] Tracks traversed `b` objects.
+* @returns {boolean} Returns `true` if the values are equivalent, else `false`.
+*/
+function baseIsEqual(a, b, callback, isWhere, stackA, stackB) {
+// used to indicate that when comparing objects, `a` has at least the properties of `b`
+if (callback) {
+var result = callback(a, b);
+if (typeof result != 'undefined') {
+return !!result;
+}
+}
+// exit early for identical values
+if (a === b) {
+// treat `+0` vs. `-0` as not equal
+return a !== 0 || (1 / a == 1 / b);
+}
+var type = typeof a,
+otherType = typeof b;
+// exit early for unlike primitive values
+if (a === a &&
+!(a && objectTypes[type]) &&
+!(b && objectTypes[otherType])) {
+return false;
+}
+// exit early for `null` and `undefined` avoiding ES3's Function#call behavior
+// http://es5.github.io/#x15.3.4.4
+if (a == null || b == null) {
+return a === b;
+}
+// compare [[Class]] names
+var className = toString.call(a),
+otherClass = toString.call(b);
+if (className == argsClass) {
+className = objectClass;
+}
+if (otherClass == argsClass) {
+otherClass = objectClass;
+}
+if (className != otherClass) {
+return false;
+}
+switch (className) {
+case boolClass:
+case dateClass:
+// coerce dates and booleans to numbers, dates to milliseconds and booleans
+// to `1` or `0` treating invalid dates coerced to `NaN` as not equal
+return +a == +b;
+case numberClass:
+// treat `NaN` vs. `NaN` as equal
+return (a != +a)
+? b != +b
+// but treat `+0` vs. `-0` as not equal
+: (a == 0 ? (1 / a == 1 / b) : a == +b);
+case regexpClass:
+case stringClass:
+// coerce regexes to strings (http://es5.github.io/#x15.10.6.4)
+// treat string primitives and their corresponding object instances as equal
+return a == String(b);
+}
+var isArr = className == arrayClass;
+if (!isArr) {
+// unwrap any `lodash` wrapped values
+var aWrapped = hasOwnProperty.call(a, '__wrapped__'),
+bWrapped = hasOwnProperty.call(b, '__wrapped__');
+if (aWrapped || bWrapped) {
+return baseIsEqual(aWrapped ? a.__wrapped__ : a, bWrapped ? b.__wrapped__ : b, callback, isWhere, stackA, stackB);
+}
+// exit for functions and DOM nodes
+if (className != objectClass || (!support.nodeClass && (isNode(a) || isNode(b)))) {
+return false;
+}
+// in older versions of Opera, `arguments` objects have `Array` constructors
+var ctorA = !support.argsObject && isArguments(a) ? Object : a.constructor,
+ctorB = !support.argsObject && isArguments(b) ? Object : b.constructor;
+// non `Object` object instances with different constructors are not equal
+if (ctorA != ctorB &&
+!(isFunction(ctorA) && ctorA instanceof ctorA && isFunction(ctorB) && ctorB instanceof ctorB) &&
+('constructor' in a && 'constructor' in b)
+) {
+return false;
+}
+}
+// assume cyclic structures are equal
+// the algorithm for detecting cyclic structures is adapted from ES 5.1
+// section 15.12.3, abstract operation `JO` (http://es5.github.io/#x15.12.3)
+var initedStack = !stackA;
+stackA || (stackA = getArray());
+stackB || (stackB = getArray());
+var length = stackA.length;
+while (length--) {
+if (stackA[length] == a) {
+return stackB[length] == b;
+}
+}
+var size = 0;
+result = true;
+// add `a` and `b` to the stack of traversed objects
+stackA.push(a);
+stackB.push(b);
+// recursively compare objects and arrays (susceptible to call stack limits)
+if (isArr) {
+// compare lengths to determine if a deep comparison is necessary
+length = a.length;
+size = b.length;
+result = size == length;
+if (result || isWhere) {
+// deep compare the contents, ignoring non-numeric properties
+while (size--) {
+var index = length,
+value = b[size];
+if (isWhere) {
+while (index--) {
+if ((result = baseIsEqual(a[index], value, callback, isWhere, stackA, stackB))) {
+break;
+}
+}
+} else if (!(result = baseIsEqual(a[size], value, callback, isWhere, stackA, stackB))) {
+break;
+}
+}
+}
+}
+else {
+// deep compare objects using `forIn`, instead of `forOwn`, to avoid `Object.keys`
+// which, in this case, is more costly
+forIn(b, function(value, key, b) {
+if (hasOwnProperty.call(b, key)) {
+// count the number of properties.
+size++;
+// deep compare each property value.
+return (result = hasOwnProperty.call(a, key) && baseIsEqual(a[key], value, callback, isWhere, stackA, stackB));
+}
+});
+if (result && !isWhere) {
+// ensure both objects have the same number of properties
+forIn(a, function(value, key, a) {
+if (hasOwnProperty.call(a, key)) {
+// `size` will be `-1` if `a` has more properties than `b`
+return (result = --size > -1);
+}
+});
+}
+}
+stackA.pop();
+stackB.pop();
+if (initedStack) {
+releaseArray(stackA);
+releaseArray(stackB);
+}
+return result;
+}
+/**
+* The base implementation of `_.merge` without argument juggling or support
+* for `thisArg` binding.
+*
+* @private
+* @param {Object} object The destination object.
+* @param {Object} source The source object.
+* @param {Function} [callback] The function to customize merging properties.
+* @param {Array} [stackA=[]] Tracks traversed source objects.
+* @param {Array} [stackB=[]] Associates values with source counterparts.
+*/
+function baseMerge(object, source, callback, stackA, stackB) {
+(isArray(source) ? forEach : forOwn)(source, function(source, key) {
+var found,
+isArr,
+result = source,
+value = object[key];
+if (source && ((isArr = isArray(source)) || isPlainObject(source))) {
+// avoid merging previously merged cyclic sources
+var stackLength = stackA.length;
+while (stackLength--) {
+if ((found = stackA[stackLength] == source)) {
+value = stackB[stackLength];
+break;
+}
+}
+if (!found) {
+var isShallow;
+if (callback) {
+result = callback(value, source);
+if ((isShallow = typeof result != 'undefined')) {
+value = result;
+}
+}
+if (!isShallow) {
+value = isArr
+? (isArray(value) ? value : [])
+: (isPlainObject(value) ? value : {});
+}
+// add `source` and associated `value` to the stack of traversed objects
+stackA.push(source);
+stackB.push(value);
+// recursively merge objects and arrays (susceptible to call stack limits)
+if (!isShallow) {
+baseMerge(value, source, callback, stackA, stackB);
+}
+}
+}
+else {
+if (callback) {
+result = callback(value, source);
+if (typeof result == 'undefined') {
+result = source;
+}
+}
+if (typeof result != 'undefined') {
+value = result;
+}
+}
+object[key] = value;
+});
+}
+/**
+* The base implementation of `_.random` without argument juggling or support
+* for returning floating-point numbers.
+*
+* @private
+* @param {number} min The minimum possible value.
+* @param {number} max The maximum possible value.
+* @returns {number} Returns a random number.
+*/
+function baseRandom(min, max) {
+return min + floor(nativeRandom() * (max - min + 1));
+}
+/**
+* The base implementation of `_.uniq` without support for callback shorthands
+* or `thisArg` binding.
+*
+* @private
+* @param {Array} array The array to process.
+* @param {boolean} [isSorted=false] A flag to indicate that `array` is sorted.
+* @param {Function} [callback] The function called per iteration.
+* @returns {Array} Returns a duplicate-value-free array.
+*/
+function baseUniq(array, isSorted, callback) {
+var index = -1,
+indexOf = getIndexOf(),
+length = array ? array.length : 0,
+result = [];
+var isLarge = !isSorted && length >= largeArraySize && indexOf === baseIndexOf,
+seen = (callback || isLarge) ? getArray() : result;
+if (isLarge) {
+var cache = createCache(seen);
+indexOf = cacheIndexOf;
+seen = cache;
+}
+while (++index < length) {
+var value = array[index],
+computed = callback ? callback(value, index, array) : value;
+if (isSorted
+? !index || seen[seen.length - 1] !== computed
+: indexOf(seen, computed) < 0
+) {
+if (callback || isLarge) {
+seen.push(computed);
+}
+result.push(value);
+}
+}
+if (isLarge) {
+releaseArray(seen.array);
+releaseObject(seen);
+} else if (callback) {
+releaseArray(seen);
+}
+return result;
+}
+/**
+* Creates a function that aggregates a collection, creating an object composed
+* of keys generated from the results of running each element of the collection
+* through a callback. The given `setter` function sets the keys and values
+* of the composed object.
+*
+* @private
+* @param {Function} setter The setter function.
+* @returns {Function} Returns the new aggregator function.
+*/
+function createAggregator(setter) {
+return function(collection, callback, thisArg) {
+var result = {};
+callback = lodash.createCallback(callback, thisArg, 3);
+if (isArray(collection)) {
+var index = -1,
+length = collection.length;
+while (++index < length) {
+var value = collection[index];
+setter(result, value, callback(value, index, collection), collection);
+}
+} else {
+baseEach(collection, function(value, key, collection) {
+setter(result, value, callback(value, key, collection), collection);
+});
+}
+return result;
+};
+}
+/**
+* Creates a function that, when called, either curries or invokes `func`
+* with an optional `this` binding and partially applied arguments.
+*
+* @private
+* @param {Function|string} func The function or method name to reference.
+* @param {number} bitmask The bitmask of method flags to compose.
+*  The bitmask may be composed of the following flags:
+*  1 - `_.bind`
+*  2 - `_.bindKey`
+*  4 - `_.curry`
+*  8 - `_.curry` (bound)
+*  16 - `_.partial`
+*  32 - `_.partialRight`
+* @param {Array} [partialArgs] An array of arguments to prepend to those
+*  provided to the new function.
+* @param {Array} [partialRightArgs] An array of arguments to append to those
+*  provided to the new function.
+* @param {*} [thisArg] The `this` binding of `func`.
+* @param {number} [arity] The arity of `func`.
+* @returns {Function} Returns the new function.
+*/
+function createWrapper(func, bitmask, partialArgs, partialRightArgs, thisArg, arity) {
+var isBind = bitmask & 1,
+isBindKey = bitmask & 2,
+isCurry = bitmask & 4,
+isCurryBound = bitmask & 8,
+isPartial = bitmask & 16,
+isPartialRight = bitmask & 32;
+if (!isBindKey && !isFunction(func)) {
+throw new TypeError;
+}
+if (isPartial && !partialArgs.length) {
+bitmask &= ~16;
+isPartial = partialArgs = false;
+}
+if (isPartialRight && !partialRightArgs.length) {
+bitmask &= ~32;
+isPartialRight = partialRightArgs = false;
+}
+var bindData = func && func.__bindData__;
+if (bindData && bindData !== true) {
+// clone `bindData`
+bindData = slice(bindData);
+if (bindData[2]) {
+bindData[2] = slice(bindData[2]);
+}
+if (bindData[3]) {
+bindData[3] = slice(bindData[3]);
+}
+// set `thisBinding` is not previously bound
+if (isBind && !(bindData[1] & 1)) {
+bindData[4] = thisArg;
+}
+// set if previously bound but not currently (subsequent curried functions)
+if (!isBind && bindData[1] & 1) {
+bitmask |= 8;
+}
+// set curried arity if not yet set
+if (isCurry && !(bindData[1] & 4)) {
+bindData[5] = arity;
+}
+// append partial left arguments
+if (isPartial) {
+push.apply(bindData[2] || (bindData[2] = []), partialArgs);
+}
+// append partial right arguments
+if (isPartialRight) {
+unshift.apply(bindData[3] || (bindData[3] = []), partialRightArgs);
+}
+// merge flags
+bindData[1] |= bitmask;
+return createWrapper.apply(null, bindData);
+}
+// fast path for `_.bind`
+var creater = (bitmask == 1 || bitmask === 17) ? baseBind : baseCreateWrapper;
+return creater([func, bitmask, partialArgs, partialRightArgs, thisArg, arity]);
+}
+/**
+* Creates compiled iteration functions.
+*
+* @private
+* @param {...Object} [options] The compile options object(s).
+* @param {string} [options.array] Code to determine if the iterable is an array or array-like.
+* @param {boolean} [options.useHas] Specify using `hasOwnProperty` checks in the object loop.
+* @param {Function} [options.keys] A reference to `_.keys` for use in own property iteration.
+* @param {string} [options.args] A comma separated string of iteration function arguments.
+* @param {string} [options.top] Code to execute before the iteration branches.
+* @param {string} [options.loop] Code to execute in the object loop.
+* @param {string} [options.bottom] Code to execute after the iteration branches.
+* @returns {Function} Returns the compiled function.
+*/
+function createIterator() {
+// data properties
+iteratorData.shadowedProps = shadowedProps;
+// iterator options
+iteratorData.array = iteratorData.bottom = iteratorData.loop = iteratorData.top = '';
+iteratorData.init = 'iterable';
+iteratorData.useHas = true;
+// merge options into a template data object
+for (var object, index = 0; object = arguments[index]; index++) {
+for (var key in object) {
+iteratorData[key] = object[key];
+}
+}
+var args = iteratorData.args;
+iteratorData.firstArg = /^[^,]+/.exec(args)[0];
+// create the function factory
+var factory = Function(
+'baseCreateCallback, errorClass, errorProto, hasOwnProperty, ' +
+'indicatorObject, isArguments, isArray, isString, keys, objectProto, ' +
+'objectTypes, nonEnumProps, stringClass, stringProto, toString',
+'return function(' + args + ') {\n' + iteratorTemplate(iteratorData) + '\n}'
+);
+// return the compiled function
+return factory(
+baseCreateCallback, errorClass, errorProto, hasOwnProperty,
+indicatorObject, isArguments, isArray, isString, iteratorData.keys, objectProto,
+objectTypes, nonEnumProps, stringClass, stringProto, toString
+);
+}
+/**
+* Used by `escape` to convert characters to HTML entities.
+*
+* @private
+* @param {string} match The matched character to escape.
+* @returns {string} Returns the escaped character.
+*/
+function escapeHtmlChar(match) {
+return htmlEscapes[match];
+}
+/**
+* Gets the appropriate "indexOf" function. If the `_.indexOf` method is
+* customized, this method returns the custom method, otherwise it returns
+* the `baseIndexOf` function.
+*
+* @private
+* @returns {Function} Returns the "indexOf" function.
+*/
+function getIndexOf() {
+var result = (result = lodash.indexOf) === indexOf ? baseIndexOf : result;
+return result;
+}
+/**
+* Checks if `value` is a native function.
+*
+* @private
+* @param {*} value The value to check.
+* @returns {boolean} Returns `true` if the `value` is a native function, else `false`.
+*/
+function isNative(value) {
+return typeof value == 'function' && reNative.test(value);
+}
+/**
+* Sets `this` binding data on a given function.
+*
+* @private
+* @param {Function} func The function to set data on.
+* @param {Array} value The data array to set.
+*/
+var setBindData = !defineProperty ? noop : function(func, value) {
+descriptor.value = value;
+defineProperty(func, '__bindData__', descriptor);
+};
+/**
+* A fallback implementation of `isPlainObject` which checks if a given value
+* is an object created by the `Object` constructor, assuming objects created
+* by the `Object` constructor have no inherited enumerable properties and that
+* there are no `Object.prototype` extensions.
+*
+* @private
+* @param {*} value The value to check.
+* @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
+*/
+function shimIsPlainObject(value) {
+var ctor,
+result;
+// avoid non Object objects, `arguments` objects, and DOM elements
+if (!(value && toString.call(value) == objectClass) ||
+(ctor = value.constructor, isFunction(ctor) && !(ctor instanceof ctor)) ||
+(!support.argsClass && isArguments(value)) ||
+(!support.nodeClass && isNode(value))) {
+return false;
+}
+// IE < 9 iterates inherited properties before own properties. If the first
+// iterated property is an object's own property then there are no inherited
+// enumerable properties.
+if (support.ownLast) {
+forIn(value, function(value, key, object) {
+result = hasOwnProperty.call(object, key);
+return false;
+});
+return result !== false;
+}
+// In most environments an object's own properties are iterated before
+// its inherited properties. If the last iterated property is an object's
+// own property then there are no inherited enumerable properties.
+forIn(value, function(value, key) {
+result = key;
+});
+return typeof result == 'undefined' || hasOwnProperty.call(value, result);
+}
+/**
+* Used by `unescape` to convert HTML entities to characters.
+*
+* @private
+* @param {string} match The matched character to unescape.
+* @returns {string} Returns the unescaped character.
+*/
+function unescapeHtmlChar(match) {
+return htmlUnescapes[match];
+}
+/*--------------------------------------------------------------------------*/
+/**
+* Checks if `value` is an `arguments` object.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {*} value The value to check.
+* @returns {boolean} Returns `true` if the `value` is an `arguments` object, else `false`.
+* @example
+*
+* (function() { return _.isArguments(arguments); })(1, 2, 3);
+* // => true
+*
+* _.isArguments([1, 2, 3]);
+* // => false
+*/
+function isArguments(value) {
+return value && typeof value == 'object' && typeof value.length == 'number' &&
+toString.call(value) == argsClass || false;
+}
+// fallback for browsers that can't detect `arguments` objects by [[Class]]
+if (!support.argsClass) {
+isArguments = function(value) {
+return value && typeof value == 'object' && typeof value.length == 'number' &&
+hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee') || false;
+};
+}
+/**
+* Checks if `value` is an array.
+*
+* @static
+* @memberOf _
+* @type Function
+* @category Objects
+* @param {*} value The value to check.
+* @returns {boolean} Returns `true` if the `value` is an array, else `false`.
+* @example
+*
+* (function() { return _.isArray(arguments); })();
+* // => false
+*
+* _.isArray([1, 2, 3]);
+* // => true
+*/
+var isArray = nativeIsArray || function(value) {
+return value && typeof value == 'object' && typeof value.length == 'number' &&
+toString.call(value) == arrayClass || false;
+};
+/**
+* A fallback implementation of `Object.keys` which produces an array of the
+* given object's own enumerable property names.
+*
+* @private
+* @type Function
+* @param {Object} object The object to inspect.
+* @returns {Array} Returns an array of property names.
+*/
+var shimKeys = createIterator({
+'args': 'object',
+'init': '[]',
+'top': 'if (!(objectTypes[typeof object])) return result',
+'loop': 'result.push(index)'
+});
+/**
+* Creates an array composed of the own enumerable property names of an object.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {Object} object The object to inspect.
+* @returns {Array} Returns an array of property names.
+* @example
+*
+* _.keys({ 'one': 1, 'two': 2, 'three': 3 });
+* // => ['one', 'two', 'three'] (property order is not guaranteed across environments)
+*/
+var keys = !nativeKeys ? shimKeys : function(object) {
+if (!isObject(object)) {
+return [];
+}
+if ((support.enumPrototypes && typeof object == 'function') ||
+(support.nonEnumArgs && object.length && isArguments(object))) {
+return shimKeys(object);
+}
+return nativeKeys(object);
+};
+/** Reusable iterator options shared by `each`, `forIn`, and `forOwn` */
+var eachIteratorOptions = {
+'args': 'collection, callback, thisArg',
+'top': "callback = callback && typeof thisArg == 'undefined' ? callback : baseCreateCallback(callback, thisArg, 3)",
+'array': "typeof length == 'number'",
+'keys': keys,
+'loop': 'if (callback(iterable[index], index, collection) === false) return result'
+};
+/** Reusable iterator options for `assign` and `defaults` */
+var defaultsIteratorOptions = {
+'args': 'object, source, guard',
+'top':
+'var args = arguments,\n' +
+'    argsIndex = 0,\n' +
+"    argsLength = typeof guard == 'number' ? 2 : args.length;\n" +
+'while (++argsIndex < argsLength) {\n' +
+'  iterable = args[argsIndex];\n' +
+'  if (iterable && objectTypes[typeof iterable]) {',
+'keys': keys,
+'loop': "if (typeof result[index] == 'undefined') result[index] = iterable[index]",
+'bottom': '  }\n}'
+};
+/** Reusable iterator options for `forIn` and `forOwn` */
+var forOwnIteratorOptions = {
+'top': 'if (!objectTypes[typeof iterable]) return result;\n' + eachIteratorOptions.top,
+'array': false
+};
+/**
+* Used to convert characters to HTML entities:
+*
+* Though the `>` character is escaped for symmetry, characters like `>` and `/`
+* don't require escaping in HTML and have no special meaning unless they're part
+* of a tag or an unquoted attribute value.
+* http://mathiasbynens.be/notes/ambiguous-ampersands (under "semi-related fun fact")
+*/
+var htmlEscapes = {
+'&': '&amp;',
+'<': '&lt;',
+'>': '&gt;',
+'"': '&quot;',
+"'": '&#39;'
+};
+/** Used to convert HTML entities to characters */
+var htmlUnescapes = invert(htmlEscapes);
+/** Used to match HTML entities and HTML characters */
+var reEscapedHtml = RegExp('(' + keys(htmlUnescapes).join('|') + ')', 'g'),
+reUnescapedHtml = RegExp('[' + keys(htmlEscapes).join('') + ']', 'g');
+/**
+* A function compiled to iterate `arguments` objects, arrays, objects, and
+* strings consistenly across environments, executing the callback for each
+* element in the collection. The callback is bound to `thisArg` and invoked
+* with three arguments; (value, index|key, collection). Callbacks may exit
+* iteration early by explicitly returning `false`.
+*
+* @private
+* @type Function
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {Function} [callback=identity] The function called per iteration.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Array|Object|string} Returns `collection`.
+*/
+var baseEach = createIterator(eachIteratorOptions);
+/*--------------------------------------------------------------------------*/
+/**
+* Assigns own enumerable properties of source object(s) to the destination
+* object. Subsequent sources will overwrite property assignments of previous
+* sources. If a callback is provided it will be executed to produce the
+* assigned values. The callback is bound to `thisArg` and invoked with two
+* arguments; (objectValue, sourceValue).
+*
+* @static
+* @memberOf _
+* @type Function
+* @alias extend
+* @category Objects
+* @param {Object} object The destination object.
+* @param {...Object} [source] The source objects.
+* @param {Function} [callback] The function to customize assigning values.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Object} Returns the destination object.
+* @example
+*
+* _.assign({ 'name': 'fred' }, { 'employer': 'slate' });
+* // => { 'name': 'fred', 'employer': 'slate' }
+*
+* var defaults = _.partialRight(_.assign, function(a, b) {
+*   return typeof a == 'undefined' ? b : a;
+* });
+*
+* var object = { 'name': 'barney' };
+* defaults(object, { 'name': 'fred', 'employer': 'slate' });
+* // => { 'name': 'barney', 'employer': 'slate' }
+*/
+var assign = createIterator(defaultsIteratorOptions, {
+'top':
+defaultsIteratorOptions.top.replace(';',
+';\n' +
+"if (argsLength > 3 && typeof args[argsLength - 2] == 'function') {\n" +
+'  var callback = baseCreateCallback(args[--argsLength - 1], args[argsLength--], 2);\n' +
+"} else if (argsLength > 2 && typeof args[argsLength - 1] == 'function') {\n" +
+'  callback = args[--argsLength];\n' +
+'}'
+),
+'loop': 'result[index] = callback ? callback(result[index], iterable[index]) : iterable[index]'
+});
+/**
+* Creates a clone of `value`. If `isDeep` is `true` nested objects will also
+* be cloned, otherwise they will be assigned by reference. If a callback
+* is provided it will be executed to produce the cloned values. If the
+* callback returns `undefined` cloning will be handled by the method instead.
+* The callback is bound to `thisArg` and invoked with one argument; (value).
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {*} value The value to clone.
+* @param {boolean} [isDeep=false] Specify a deep clone.
+* @param {Function} [callback] The function to customize cloning values.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {*} Returns the cloned value.
+* @example
+*
+* var characters = [
+*   { 'name': 'barney', 'age': 36 },
+*   { 'name': 'fred',   'age': 40 }
+* ];
+*
+* var shallow = _.clone(characters);
+* shallow[0] === characters[0];
+* // => true
+*
+* var deep = _.clone(characters, true);
+* deep[0] === characters[0];
+* // => false
+*
+* _.mixin({
+*   'clone': _.partialRight(_.clone, function(value) {
+*     return _.isElement(value) ? value.cloneNode(false) : undefined;
+*   })
+* });
+*
+* var clone = _.clone(document.body);
+* clone.childNodes.length;
+* // => 0
+*/
+function clone(value, isDeep, callback, thisArg) {
+// allows working with "Collections" methods without using their `index`
+// and `collection` arguments for `isDeep` and `callback`
+if (typeof isDeep != 'boolean' && isDeep != null) {
+thisArg = callback;
+callback = isDeep;
+isDeep = false;
+}
+return baseClone(value, isDeep, typeof callback == 'function' && baseCreateCallback(callback, thisArg, 1));
+}
+/**
+* Creates a deep clone of `value`. If a callback is provided it will be
+* executed to produce the cloned values. If the callback returns `undefined`
+* cloning will be handled by the method instead. The callback is bound to
+* `thisArg` and invoked with one argument; (value).
+*
+* Note: This method is loosely based on the structured clone algorithm. Functions
+* and DOM nodes are **not** cloned. The enumerable properties of `arguments` objects and
+* objects created by constructors other than `Object` are cloned to plain `Object` objects.
+* See http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {*} value The value to deep clone.
+* @param {Function} [callback] The function to customize cloning values.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {*} Returns the deep cloned value.
+* @example
+*
+* var characters = [
+*   { 'name': 'barney', 'age': 36 },
+*   { 'name': 'fred',   'age': 40 }
+* ];
+*
+* var deep = _.cloneDeep(characters);
+* deep[0] === characters[0];
+* // => false
+*
+* var view = {
+*   'label': 'docs',
+*   'node': element
+* };
+*
+* var clone = _.cloneDeep(view, function(value) {
+*   return _.isElement(value) ? value.cloneNode(true) : undefined;
+* });
+*
+* clone.node == view.node;
+* // => false
+*/
+function cloneDeep(value, callback, thisArg) {
+return baseClone(value, true, typeof callback == 'function' && baseCreateCallback(callback, thisArg, 1));
+}
+/**
+* Creates an object that inherits from the given `prototype` object. If a
+* `properties` object is provided its own enumerable properties are assigned
+* to the created object.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {Object} prototype The object to inherit from.
+* @param {Object} [properties] The properties to assign to the object.
+* @returns {Object} Returns the new object.
+* @example
+*
+* function Shape() {
+*   this.x = 0;
+*   this.y = 0;
+* }
+*
+* function Circle() {
+*   Shape.call(this);
+* }
+*
+* Circle.prototype = _.create(Shape.prototype, { 'constructor': Circle });
+*
+* var circle = new Circle;
+* circle instanceof Circle;
+* // => true
+*
+* circle instanceof Shape;
+* // => true
+*/
+function create(prototype, properties) {
+var result = baseCreate(prototype);
+return properties ? assign(result, properties) : result;
+}
+/**
+* Assigns own enumerable properties of source object(s) to the destination
+* object for all destination properties that resolve to `undefined`. Once a
+* property is set, additional defaults of the same property will be ignored.
+*
+* @static
+* @memberOf _
+* @type Function
+* @category Objects
+* @param {Object} object The destination object.
+* @param {...Object} [source] The source objects.
+* @param- {Object} [guard] Allows working with `_.reduce` without using its
+*  `key` and `object` arguments as sources.
+* @returns {Object} Returns the destination object.
+* @example
+*
+* var object = { 'name': 'barney' };
+* _.defaults(object, { 'name': 'fred', 'employer': 'slate' });
+* // => { 'name': 'barney', 'employer': 'slate' }
+*/
+var defaults = createIterator(defaultsIteratorOptions);
+/**
+* This method is like `_.findIndex` except that it returns the key of the
+* first element that passes the callback check, instead of the element itself.
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {Object} object The object to search.
+* @param {Function|Object|string} [callback=identity] The function called per
+*  iteration. If a property name or object is provided it will be used to
+*  create a "_.pluck" or "_.where" style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {string|undefined} Returns the key of the found element, else `undefined`.
+* @example
+*
+* var characters = {
+*   'barney': {  'age': 36, 'blocked': false },
+*   'fred': {    'age': 40, 'blocked': true },
+*   'pebbles': { 'age': 1,  'blocked': false }
+* };
+*
+* _.findKey(characters, function(chr) {
+*   return chr.age < 40;
+* });
+* // => 'barney' (property order is not guaranteed across environments)
+*
+* // using "_.where" callback shorthand
+* _.findKey(characters, { 'age': 1 });
+* // => 'pebbles'
+*
+* // using "_.pluck" callback shorthand
+* _.findKey(characters, 'blocked');
+* // => 'fred'
+*/
+function findKey(object, callback, thisArg) {
+var result;
+callback = lodash.createCallback(callback, thisArg, 3);
+forOwn(object, function(value, key, object) {
+if (callback(value, key, object)) {
+result = key;
+return false;
+}
+});
+return result;
+}
+/**
+* This method is like `_.findKey` except that it iterates over elements
+* of a `collection` in the opposite order.
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {Object} object The object to search.
+* @param {Function|Object|string} [callback=identity] The function called per
+*  iteration. If a property name or object is provided it will be used to
+*  create a "_.pluck" or "_.where" style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {string|undefined} Returns the key of the found element, else `undefined`.
+* @example
+*
+* var characters = {
+*   'barney': {  'age': 36, 'blocked': true },
+*   'fred': {    'age': 40, 'blocked': false },
+*   'pebbles': { 'age': 1,  'blocked': true }
+* };
+*
+* _.findLastKey(characters, function(chr) {
+*   return chr.age < 40;
+* });
+* // => returns `pebbles`, assuming `_.findKey` returns `barney`
+*
+* // using "_.where" callback shorthand
+* _.findLastKey(characters, { 'age': 40 });
+* // => 'fred'
+*
+* // using "_.pluck" callback shorthand
+* _.findLastKey(characters, 'blocked');
+* // => 'pebbles'
+*/
+function findLastKey(object, callback, thisArg) {
+var result;
+callback = lodash.createCallback(callback, thisArg, 3);
+forOwnRight(object, function(value, key, object) {
+if (callback(value, key, object)) {
+result = key;
+return false;
+}
+});
+return result;
+}
+/**
+* Iterates over own and inherited enumerable properties of an object,
+* executing the callback for each property. The callback is bound to `thisArg`
+* and invoked with three arguments; (value, key, object). Callbacks may exit
+* iteration early by explicitly returning `false`.
+*
+* @static
+* @memberOf _
+* @type Function
+* @category Objects
+* @param {Object} object The object to iterate over.
+* @param {Function} [callback=identity] The function called per iteration.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Object} Returns `object`.
+* @example
+*
+* function Shape() {
+*   this.x = 0;
+*   this.y = 0;
+* }
+*
+* Shape.prototype.move = function(x, y) {
+*   this.x += x;
+*   this.y += y;
+* };
+*
+* _.forIn(new Shape, function(value, key) {
+*   console.log(key);
+* });
+* // => logs 'x', 'y', and 'move' (property order is not guaranteed across environments)
+*/
+var forIn = createIterator(eachIteratorOptions, forOwnIteratorOptions, {
+'useHas': false
+});
+/**
+* This method is like `_.forIn` except that it iterates over elements
+* of a `collection` in the opposite order.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {Object} object The object to iterate over.
+* @param {Function} [callback=identity] The function called per iteration.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Object} Returns `object`.
+* @example
+*
+* function Shape() {
+*   this.x = 0;
+*   this.y = 0;
+* }
+*
+* Shape.prototype.move = function(x, y) {
+*   this.x += x;
+*   this.y += y;
+* };
+*
+* _.forInRight(new Shape, function(value, key) {
+*   console.log(key);
+* });
+* // => logs 'move', 'y', and 'x' assuming `_.forIn ` logs 'x', 'y', and 'move'
+*/
+function forInRight(object, callback, thisArg) {
+var pairs = [];
+forIn(object, function(value, key) {
+pairs.push(key, value);
+});
+var length = pairs.length;
+callback = baseCreateCallback(callback, thisArg, 3);
+while (length--) {
+if (callback(pairs[length--], pairs[length], object) === false) {
+break;
+}
+}
+return object;
+}
+/**
+* Iterates over own enumerable properties of an object, executing the callback
+* for each property. The callback is bound to `thisArg` and invoked with three
+* arguments; (value, key, object). Callbacks may exit iteration early by
+* explicitly returning `false`.
+*
+* @static
+* @memberOf _
+* @type Function
+* @category Objects
+* @param {Object} object The object to iterate over.
+* @param {Function} [callback=identity] The function called per iteration.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Object} Returns `object`.
+* @example
+*
+* _.forOwn({ '0': 'zero', '1': 'one', 'length': 2 }, function(num, key) {
+*   console.log(key);
+* });
+* // => logs '0', '1', and 'length' (property order is not guaranteed across environments)
+*/
+var forOwn = createIterator(eachIteratorOptions, forOwnIteratorOptions);
+/**
+* This method is like `_.forOwn` except that it iterates over elements
+* of a `collection` in the opposite order.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {Object} object The object to iterate over.
+* @param {Function} [callback=identity] The function called per iteration.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Object} Returns `object`.
+* @example
+*
+* _.forOwnRight({ '0': 'zero', '1': 'one', 'length': 2 }, function(num, key) {
+*   console.log(key);
+* });
+* // => logs 'length', '1', and '0' assuming `_.forOwn` logs '0', '1', and 'length'
+*/
+function forOwnRight(object, callback, thisArg) {
+var props = keys(object),
+length = props.length;
+callback = baseCreateCallback(callback, thisArg, 3);
+while (length--) {
+var key = props[length];
+if (callback(object[key], key, object) === false) {
+break;
+}
+}
+return object;
+}
+/**
+* Creates a sorted array of property names of all enumerable properties,
+* own and inherited, of `object` that have function values.
+*
+* @static
+* @memberOf _
+* @alias methods
+* @category Objects
+* @param {Object} object The object to inspect.
+* @returns {Array} Returns an array of property names that have function values.
+* @example
+*
+* _.functions(_);
+* // => ['all', 'any', 'bind', 'bindAll', 'clone', 'compact', 'compose', ...]
+*/
+function functions(object) {
+var result = [];
+forIn(object, function(value, key) {
+if (isFunction(value)) {
+result.push(key);
+}
+});
+return result.sort();
+}
+/**
+* Checks if the specified property name exists as a direct property of `object`,
+* instead of an inherited property.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {Object} object The object to inspect.
+* @param {string} key The name of the property to check.
+* @returns {boolean} Returns `true` if key is a direct property, else `false`.
+* @example
+*
+* _.has({ 'a': 1, 'b': 2, 'c': 3 }, 'b');
+* // => true
+*/
+function has(object, key) {
+return object ? hasOwnProperty.call(object, key) : false;
+}
+/**
+* Creates an object composed of the inverted keys and values of the given object.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {Object} object The object to invert.
+* @returns {Object} Returns the created inverted object.
+* @example
+*
+* _.invert({ 'first': 'fred', 'second': 'barney' });
+* // => { 'fred': 'first', 'barney': 'second' }
+*/
+function invert(object) {
+var index = -1,
+props = keys(object),
+length = props.length,
+result = {};
+while (++index < length) {
+var key = props[index];
+result[object[key]] = key;
+}
+return result;
+}
+/**
+* Checks if `value` is a boolean value.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {*} value The value to check.
+* @returns {boolean} Returns `true` if the `value` is a boolean value, else `false`.
+* @example
+*
+* _.isBoolean(null);
+* // => false
+*/
+function isBoolean(value) {
+return value === true || value === false ||
+value && typeof value == 'object' && toString.call(value) == boolClass || false;
+}
+/**
+* Checks if `value` is a date.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {*} value The value to check.
+* @returns {boolean} Returns `true` if the `value` is a date, else `false`.
+* @example
+*
+* _.isDate(new Date);
+* // => true
+*/
+function isDate(value) {
+return value && typeof value == 'object' && toString.call(value) == dateClass || false;
+}
+/**
+* Checks if `value` is a DOM element.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {*} value The value to check.
+* @returns {boolean} Returns `true` if the `value` is a DOM element, else `false`.
+* @example
+*
+* _.isElement(document.body);
+* // => true
+*/
+function isElement(value) {
+return value && value.nodeType === 1 || false;
+}
+/**
+* Checks if `value` is empty. Arrays, strings, or `arguments` objects with a
+* length of `0` and objects with no own enumerable properties are considered
+* "empty".
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {Array|Object|string} value The value to inspect.
+* @returns {boolean} Returns `true` if the `value` is empty, else `false`.
+* @example
+*
+* _.isEmpty([1, 2, 3]);
+* // => false
+*
+* _.isEmpty({});
+* // => true
+*
+* _.isEmpty('');
+* // => true
+*/
+function isEmpty(value) {
+var result = true;
+if (!value) {
+return result;
+}
+var className = toString.call(value),
+length = value.length;
+if ((className == arrayClass || className == stringClass ||
+(support.argsClass ? className == argsClass : isArguments(value))) ||
+(className == objectClass && typeof length == 'number' && isFunction(value.splice))) {
+return !length;
+}
+forOwn(value, function() {
+return (result = false);
+});
+return result;
+}
+/**
+* Performs a deep comparison between two values to determine if they are
+* equivalent to each other. If a callback is provided it will be executed
+* to compare values. If the callback returns `undefined` comparisons will
+* be handled by the method instead. The callback is bound to `thisArg` and
+* invoked with two arguments; (a, b).
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {*} a The value to compare.
+* @param {*} b The other value to compare.
+* @param {Function} [callback] The function to customize comparing values.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {boolean} Returns `true` if the values are equivalent, else `false`.
+* @example
+*
+* var object = { 'name': 'fred' };
+* var copy = { 'name': 'fred' };
+*
+* object == copy;
+* // => false
+*
+* _.isEqual(object, copy);
+* // => true
+*
+* var words = ['hello', 'goodbye'];
+* var otherWords = ['hi', 'goodbye'];
+*
+* _.isEqual(words, otherWords, function(a, b) {
+*   var reGreet = /^(?:hello|hi)$/i,
+*       aGreet = _.isString(a) && reGreet.test(a),
+*       bGreet = _.isString(b) && reGreet.test(b);
+*
+*   return (aGreet || bGreet) ? (aGreet == bGreet) : undefined;
+* });
+* // => true
+*/
+function isEqual(a, b, callback, thisArg) {
+return baseIsEqual(a, b, typeof callback == 'function' && baseCreateCallback(callback, thisArg, 2));
+}
+/**
+* Checks if `value` is, or can be coerced to, a finite number.
+*
+* Note: This is not the same as native `isFinite` which will return true for
+* booleans and empty strings. See http://es5.github.io/#x15.1.2.5.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {*} value The value to check.
+* @returns {boolean} Returns `true` if the `value` is finite, else `false`.
+* @example
+*
+* _.isFinite(-101);
+* // => true
+*
+* _.isFinite('10');
+* // => true
+*
+* _.isFinite(true);
+* // => false
+*
+* _.isFinite('');
+* // => false
+*
+* _.isFinite(Infinity);
+* // => false
+*/
+function isFinite(value) {
+return nativeIsFinite(value) && !nativeIsNaN(parseFloat(value));
+}
+/**
+* Checks if `value` is a function.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {*} value The value to check.
+* @returns {boolean} Returns `true` if the `value` is a function, else `false`.
+* @example
+*
+* _.isFunction(_);
+* // => true
+*/
+function isFunction(value) {
+return typeof value == 'function';
+}
+// fallback for older versions of Chrome and Safari
+if (isFunction(/x/)) {
+isFunction = function(value) {
+return typeof value == 'function' && toString.call(value) == funcClass;
+};
+}
+/**
+* Checks if `value` is the language type of Object.
+* (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {*} value The value to check.
+* @returns {boolean} Returns `true` if the `value` is an object, else `false`.
+* @example
+*
+* _.isObject({});
+* // => true
+*
+* _.isObject([1, 2, 3]);
+* // => true
+*
+* _.isObject(1);
+* // => false
+*/
+function isObject(value) {
+// check if the value is the ECMAScript language type of Object
+// http://es5.github.io/#x8
+// and avoid a V8 bug
+// http://code.google.com/p/v8/issues/detail?id=2291
+return !!(value && objectTypes[typeof value]);
+}
+/**
+* Checks if `value` is `NaN`.
+*
+* Note: This is not the same as native `isNaN` which will return `true` for
+* `undefined` and other non-numeric values. See http://es5.github.io/#x15.1.2.4.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {*} value The value to check.
+* @returns {boolean} Returns `true` if the `value` is `NaN`, else `false`.
+* @example
+*
+* _.isNaN(NaN);
+* // => true
+*
+* _.isNaN(new Number(NaN));
+* // => true
+*
+* isNaN(undefined);
+* // => true
+*
+* _.isNaN(undefined);
+* // => false
+*/
+function isNaN(value) {
+// `NaN` as a primitive is the only value that is not equal to itself
+// (perform the [[Class]] check first to avoid errors with some host objects in IE)
+return isNumber(value) && value != +value;
+}
+/**
+* Checks if `value` is `null`.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {*} value The value to check.
+* @returns {boolean} Returns `true` if the `value` is `null`, else `false`.
+* @example
+*
+* _.isNull(null);
+* // => true
+*
+* _.isNull(undefined);
+* // => false
+*/
+function isNull(value) {
+return value === null;
+}
+/**
+* Checks if `value` is a number.
+*
+* Note: `NaN` is considered a number. See http://es5.github.io/#x8.5.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {*} value The value to check.
+* @returns {boolean} Returns `true` if the `value` is a number, else `false`.
+* @example
+*
+* _.isNumber(8.4 * 5);
+* // => true
+*/
+function isNumber(value) {
+return typeof value == 'number' ||
+value && typeof value == 'object' && toString.call(value) == numberClass || false;
+}
+/**
+* Checks if `value` is an object created by the `Object` constructor.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {*} value The value to check.
+* @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
+* @example
+*
+* function Shape() {
+*   this.x = 0;
+*   this.y = 0;
+* }
+*
+* _.isPlainObject(new Shape);
+* // => false
+*
+* _.isPlainObject([1, 2, 3]);
+* // => false
+*
+* _.isPlainObject({ 'x': 0, 'y': 0 });
+* // => true
+*/
+var isPlainObject = !getPrototypeOf ? shimIsPlainObject : function(value) {
+if (!(value && toString.call(value) == objectClass) || (!support.argsClass && isArguments(value))) {
+return false;
+}
+var valueOf = value.valueOf,
+objProto = isNative(valueOf) && (objProto = getPrototypeOf(valueOf)) && getPrototypeOf(objProto);
+return objProto
+? (value == objProto || getPrototypeOf(value) == objProto)
+: shimIsPlainObject(value);
+};
+/**
+* Checks if `value` is a regular expression.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {*} value The value to check.
+* @returns {boolean} Returns `true` if the `value` is a regular expression, else `false`.
+* @example
+*
+* _.isRegExp(/fred/);
+* // => true
+*/
+function isRegExp(value) {
+return value && objectTypes[typeof value] && toString.call(value) == regexpClass || false;
+}
+/**
+* Checks if `value` is a string.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {*} value The value to check.
+* @returns {boolean} Returns `true` if the `value` is a string, else `false`.
+* @example
+*
+* _.isString('fred');
+* // => true
+*/
+function isString(value) {
+return typeof value == 'string' ||
+value && typeof value == 'object' && toString.call(value) == stringClass || false;
+}
+/**
+* Checks if `value` is `undefined`.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {*} value The value to check.
+* @returns {boolean} Returns `true` if the `value` is `undefined`, else `false`.
+* @example
+*
+* _.isUndefined(void 0);
+* // => true
+*/
+function isUndefined(value) {
+return typeof value == 'undefined';
+}
+/**
+* Creates an object with the same keys as `object` and values generated by
+* running each own enumerable property of `object` through the callback.
+* The callback is bound to `thisArg` and invoked with three arguments;
+* (value, key, object).
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {Object} object The object to iterate over.
+* @param {Function|Object|string} [callback=identity] The function called
+*  per iteration. If a property name or object is provided it will be used
+*  to create a "_.pluck" or "_.where" style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Array} Returns a new object with values of the results of each `callback` execution.
+* @example
+*
+* _.mapValues({ 'a': 1, 'b': 2, 'c': 3} , function(num) { return num * 3; });
+* // => { 'a': 3, 'b': 6, 'c': 9 }
+*
+* var characters = {
+*   'fred': { 'name': 'fred', 'age': 40 },
+*   'pebbles': { 'name': 'pebbles', 'age': 1 }
+* };
+*
+* // using "_.pluck" callback shorthand
+* _.mapValues(characters, 'age');
+* // => { 'fred': 40, 'pebbles': 1 }
+*/
+function mapValues(object, callback, thisArg) {
+var result = {};
+callback = lodash.createCallback(callback, thisArg, 3);
+forOwn(object, function(value, key, object) {
+result[key] = callback(value, key, object);
+});
+return result;
+}
+/**
+* Recursively merges own enumerable properties of the source object(s), that
+* don't resolve to `undefined` into the destination object. Subsequent sources
+* will overwrite property assignments of previous sources. If a callback is
+* provided it will be executed to produce the merged values of the destination
+* and source properties. If the callback returns `undefined` merging will
+* be handled by the method instead. The callback is bound to `thisArg` and
+* invoked with two arguments; (objectValue, sourceValue).
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {Object} object The destination object.
+* @param {...Object} [source] The source objects.
+* @param {Function} [callback] The function to customize merging properties.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Object} Returns the destination object.
+* @example
+*
+* var names = {
+*   'characters': [
+*     { 'name': 'barney' },
+*     { 'name': 'fred' }
+*   ]
+* };
+*
+* var ages = {
+*   'characters': [
+*     { 'age': 36 },
+*     { 'age': 40 }
+*   ]
+* };
+*
+* _.merge(names, ages);
+* // => { 'characters': [{ 'name': 'barney', 'age': 36 }, { 'name': 'fred', 'age': 40 }] }
+*
+* var food = {
+*   'fruits': ['apple'],
+*   'vegetables': ['beet']
+* };
+*
+* var otherFood = {
+*   'fruits': ['banana'],
+*   'vegetables': ['carrot']
+* };
+*
+* _.merge(food, otherFood, function(a, b) {
+*   return _.isArray(a) ? a.concat(b) : undefined;
+* });
+* // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot] }
+*/
+function merge(object) {
+var args = arguments,
+length = 2;
+if (!isObject(object)) {
+return object;
+}
+// allows working with `_.reduce` and `_.reduceRight` without using
+// their `index` and `collection` arguments
+if (typeof args[2] != 'number') {
+length = args.length;
+}
+if (length > 3 && typeof args[length - 2] == 'function') {
+var callback = baseCreateCallback(args[--length - 1], args[length--], 2);
+} else if (length > 2 && typeof args[length - 1] == 'function') {
+callback = args[--length];
+}
+var sources = slice(arguments, 1, length),
+index = -1,
+stackA = getArray(),
+stackB = getArray();
+while (++index < length) {
+baseMerge(object, sources[index], callback, stackA, stackB);
+}
+releaseArray(stackA);
+releaseArray(stackB);
+return object;
+}
+/**
+* Creates a shallow clone of `object` excluding the specified properties.
+* Property names may be specified as individual arguments or as arrays of
+* property names. If a callback is provided it will be executed for each
+* property of `object` omitting the properties the callback returns truey
+* for. The callback is bound to `thisArg` and invoked with three arguments;
+* (value, key, object).
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {Object} object The source object.
+* @param {Function|...string|string[]} [callback] The properties to omit or the
+*  function called per iteration.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Object} Returns an object without the omitted properties.
+* @example
+*
+* _.omit({ 'name': 'fred', 'age': 40 }, 'age');
+* // => { 'name': 'fred' }
+*
+* _.omit({ 'name': 'fred', 'age': 40 }, function(value) {
+*   return typeof value == 'number';
+* });
+* // => { 'name': 'fred' }
+*/
+function omit(object, callback, thisArg) {
+var result = {};
+if (typeof callback != 'function') {
+var props = [];
+forIn(object, function(value, key) {
+props.push(key);
+});
+props = baseDifference(props, baseFlatten(arguments, true, false, 1));
+var index = -1,
+length = props.length;
+while (++index < length) {
+var key = props[index];
+result[key] = object[key];
+}
+} else {
+callback = lodash.createCallback(callback, thisArg, 3);
+forIn(object, function(value, key, object) {
+if (!callback(value, key, object)) {
+result[key] = value;
+}
+});
+}
+return result;
+}
+/**
+* Creates a two dimensional array of an object's key-value pairs,
+* i.e. `[[key1, value1], [key2, value2]]`.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {Object} object The object to inspect.
+* @returns {Array} Returns new array of key-value pairs.
+* @example
+*
+* _.pairs({ 'barney': 36, 'fred': 40 });
+* // => [['barney', 36], ['fred', 40]] (property order is not guaranteed across environments)
+*/
+function pairs(object) {
+var index = -1,
+props = keys(object),
+length = props.length,
+result = Array(length);
+while (++index < length) {
+var key = props[index];
+result[index] = [key, object[key]];
+}
+return result;
+}
+/**
+* Creates a shallow clone of `object` composed of the specified properties.
+* Property names may be specified as individual arguments or as arrays of
+* property names. If a callback is provided it will be executed for each
+* property of `object` picking the properties the callback returns truey
+* for. The callback is bound to `thisArg` and invoked with three arguments;
+* (value, key, object).
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {Object} object The source object.
+* @param {Function|...string|string[]} [callback] The function called per
+*  iteration or property names to pick, specified as individual property
+*  names or arrays of property names.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Object} Returns an object composed of the picked properties.
+* @example
+*
+* _.pick({ 'name': 'fred', '_userid': 'fred1' }, 'name');
+* // => { 'name': 'fred' }
+*
+* _.pick({ 'name': 'fred', '_userid': 'fred1' }, function(value, key) {
+*   return key.charAt(0) != '_';
+* });
+* // => { 'name': 'fred' }
+*/
+function pick(object, callback, thisArg) {
+var result = {};
+if (typeof callback != 'function') {
+var index = -1,
+props = baseFlatten(arguments, true, false, 1),
+length = isObject(object) ? props.length : 0;
+while (++index < length) {
+var key = props[index];
+if (key in object) {
+result[key] = object[key];
+}
+}
+} else {
+callback = lodash.createCallback(callback, thisArg, 3);
+forIn(object, function(value, key, object) {
+if (callback(value, key, object)) {
+result[key] = value;
+}
+});
+}
+return result;
+}
+/**
+* An alternative to `_.reduce` this method transforms `object` to a new
+* `accumulator` object which is the result of running each of its own
+* enumerable properties through a callback, with each callback execution
+* potentially mutating the `accumulator` object. The callback is bound to
+* `thisArg` and invoked with four arguments; (accumulator, value, key, object).
+* Callbacks may exit iteration early by explicitly returning `false`.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {Array|Object} object The object to iterate over.
+* @param {Function} [callback=identity] The function called per iteration.
+* @param {*} [accumulator] The custom accumulator value.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {*} Returns the accumulated value.
+* @example
+*
+* var squares = _.transform([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], function(result, num) {
+*   num *= num;
+*   if (num % 2) {
+*     return result.push(num) < 3;
+*   }
+* });
+* // => [1, 9, 25]
+*
+* var mapped = _.transform({ 'a': 1, 'b': 2, 'c': 3 }, function(result, num, key) {
+*   result[key] = num * 3;
+* });
+* // => { 'a': 3, 'b': 6, 'c': 9 }
+*/
+function transform(object, callback, accumulator, thisArg) {
+var isArr = isArray(object);
+if (accumulator == null) {
+if (isArr) {
+accumulator = [];
+} else {
+var ctor = object && object.constructor,
+proto = ctor && ctor.prototype;
+accumulator = baseCreate(proto);
+}
+}
+if (callback) {
+callback = lodash.createCallback(callback, thisArg, 4);
+(isArr ? baseEach : forOwn)(object, function(value, index, object) {
+return callback(accumulator, value, index, object);
+});
+}
+return accumulator;
+}
+/**
+* Creates an array composed of the own enumerable property values of `object`.
+*
+* @static
+* @memberOf _
+* @category Objects
+* @param {Object} object The object to inspect.
+* @returns {Array} Returns an array of property values.
+* @example
+*
+* _.values({ 'one': 1, 'two': 2, 'three': 3 });
+* // => [1, 2, 3] (property order is not guaranteed across environments)
+*/
+function values(object) {
+var index = -1,
+props = keys(object),
+length = props.length,
+result = Array(length);
+while (++index < length) {
+result[index] = object[props[index]];
+}
+return result;
+}
+/*--------------------------------------------------------------------------*/
+/**
+* Creates an array of elements from the specified indexes, or keys, of the
+* `collection`. Indexes may be specified as individual arguments or as arrays
+* of indexes.
+*
+* @static
+* @memberOf _
+* @category Collections
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {...(number|number[]|string|string[])} [index] The indexes of `collection`
+*   to retrieve, specified as individual indexes or arrays of indexes.
+* @returns {Array} Returns a new array of elements corresponding to the
+*  provided indexes.
+* @example
+*
+* _.at(['a', 'b', 'c', 'd', 'e'], [0, 2, 4]);
+* // => ['a', 'c', 'e']
+*
+* _.at(['fred', 'barney', 'pebbles'], 0, 2);
+* // => ['fred', 'pebbles']
+*/
+function at(collection) {
+var args = arguments,
+index = -1,
+props = baseFlatten(args, true, false, 1),
+length = (args[2] && args[2][args[1]] === collection) ? 1 : props.length,
+result = Array(length);
+if (support.unindexedChars && isString(collection)) {
+collection = collection.split('');
+}
+while(++index < length) {
+result[index] = collection[props[index]];
+}
+return result;
+}
+/**
+* Checks if a given value is present in a collection using strict equality
+* for comparisons, i.e. `===`. If `fromIndex` is negative, it is used as the
+* offset from the end of the collection.
+*
+* @static
+* @memberOf _
+* @alias include
+* @category Collections
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {*} target The value to check for.
+* @param {number} [fromIndex=0] The index to search from.
+* @returns {boolean} Returns `true` if the `target` element is found, else `false`.
+* @example
+*
+* _.contains([1, 2, 3], 1);
+* // => true
+*
+* _.contains([1, 2, 3], 1, 2);
+* // => false
+*
+* _.contains({ 'name': 'fred', 'age': 40 }, 'fred');
+* // => true
+*
+* _.contains('pebbles', 'eb');
+* // => true
+*/
+function contains(collection, target, fromIndex) {
+var index = -1,
+indexOf = getIndexOf(),
+length = collection ? collection.length : 0,
+result = false;
+fromIndex = (fromIndex < 0 ? nativeMax(0, length + fromIndex) : fromIndex) || 0;
+if (isArray(collection)) {
+result = indexOf(collection, target, fromIndex) > -1;
+} else if (typeof length == 'number') {
+result = (isString(collection) ? collection.indexOf(target, fromIndex) : indexOf(collection, target, fromIndex)) > -1;
+} else {
+baseEach(collection, function(value) {
+if (++index >= fromIndex) {
+return !(result = value === target);
+}
+});
+}
+return result;
+}
+/**
+* Creates an object composed of keys generated from the results of running
+* each element of `collection` through the callback. The corresponding value
+* of each key is the number of times the key was returned by the callback.
+* The callback is bound to `thisArg` and invoked with three arguments;
+* (value, index|key, collection).
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @category Collections
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {Function|Object|string} [callback=identity] The function called
+*  per iteration. If a property name or object is provided it will be used
+*  to create a "_.pluck" or "_.where" style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Object} Returns the composed aggregate object.
+* @example
+*
+* _.countBy([4.3, 6.1, 6.4], function(num) { return Math.floor(num); });
+* // => { '4': 1, '6': 2 }
+*
+* _.countBy([4.3, 6.1, 6.4], function(num) { return this.floor(num); }, Math);
+* // => { '4': 1, '6': 2 }
+*
+* _.countBy(['one', 'two', 'three'], 'length');
+* // => { '3': 2, '5': 1 }
+*/
+var countBy = createAggregator(function(result, value, key) {
+(hasOwnProperty.call(result, key) ? result[key]++ : result[key] = 1);
+});
+/**
+* Checks if the given callback returns truey value for **all** elements of
+* a collection. The callback is bound to `thisArg` and invoked with three
+* arguments; (value, index|key, collection).
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @alias all
+* @category Collections
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {Function|Object|string} [callback=identity] The function called
+*  per iteration. If a property name or object is provided it will be used
+*  to create a "_.pluck" or "_.where" style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {boolean} Returns `true` if all elements passed the callback check,
+*  else `false`.
+* @example
+*
+* _.every([true, 1, null, 'yes']);
+* // => false
+*
+* var characters = [
+*   { 'name': 'barney', 'age': 36 },
+*   { 'name': 'fred',   'age': 40 }
+* ];
+*
+* // using "_.pluck" callback shorthand
+* _.every(characters, 'age');
+* // => true
+*
+* // using "_.where" callback shorthand
+* _.every(characters, { 'age': 36 });
+* // => false
+*/
+function every(collection, callback, thisArg) {
+var result = true;
+callback = lodash.createCallback(callback, thisArg, 3);
+if (isArray(collection)) {
+var index = -1,
+length = collection.length;
+while (++index < length) {
+if (!(result = !!callback(collection[index], index, collection))) {
+break;
+}
+}
+} else {
+baseEach(collection, function(value, index, collection) {
+return (result = !!callback(value, index, collection));
+});
+}
+return result;
+}
+/**
+* Iterates over elements of a collection, returning an array of all elements
+* the callback returns truey for. The callback is bound to `thisArg` and
+* invoked with three arguments; (value, index|key, collection).
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @alias select
+* @category Collections
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {Function|Object|string} [callback=identity] The function called
+*  per iteration. If a property name or object is provided it will be used
+*  to create a "_.pluck" or "_.where" style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Array} Returns a new array of elements that passed the callback check.
+* @example
+*
+* var evens = _.filter([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; });
+* // => [2, 4, 6]
+*
+* var characters = [
+*   { 'name': 'barney', 'age': 36, 'blocked': false },
+*   { 'name': 'fred',   'age': 40, 'blocked': true }
+* ];
+*
+* // using "_.pluck" callback shorthand
+* _.filter(characters, 'blocked');
+* // => [{ 'name': 'fred', 'age': 40, 'blocked': true }]
+*
+* // using "_.where" callback shorthand
+* _.filter(characters, { 'age': 36 });
+* // => [{ 'name': 'barney', 'age': 36, 'blocked': false }]
+*/
+function filter(collection, callback, thisArg) {
+var result = [];
+callback = lodash.createCallback(callback, thisArg, 3);
+if (isArray(collection)) {
+var index = -1,
+length = collection.length;
+while (++index < length) {
+var value = collection[index];
+if (callback(value, index, collection)) {
+result.push(value);
+}
+}
+} else {
+baseEach(collection, function(value, index, collection) {
+if (callback(value, index, collection)) {
+result.push(value);
+}
+});
+}
+return result;
+}
+/**
+* Iterates over elements of a collection, returning the first element that
+* the callback returns truey for. The callback is bound to `thisArg` and
+* invoked with three arguments; (value, index|key, collection).
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @alias detect, findWhere
+* @category Collections
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {Function|Object|string} [callback=identity] The function called
+*  per iteration. If a property name or object is provided it will be used
+*  to create a "_.pluck" or "_.where" style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {*} Returns the found element, else `undefined`.
+* @example
+*
+* var characters = [
+*   { 'name': 'barney',  'age': 36, 'blocked': false },
+*   { 'name': 'fred',    'age': 40, 'blocked': true },
+*   { 'name': 'pebbles', 'age': 1,  'blocked': false }
+* ];
+*
+* _.find(characters, function(chr) {
+*   return chr.age < 40;
+* });
+* // => { 'name': 'barney', 'age': 36, 'blocked': false }
+*
+* // using "_.where" callback shorthand
+* _.find(characters, { 'age': 1 });
+* // =>  { 'name': 'pebbles', 'age': 1, 'blocked': false }
+*
+* // using "_.pluck" callback shorthand
+* _.find(characters, 'blocked');
+* // => { 'name': 'fred', 'age': 40, 'blocked': true }
+*/
+function find(collection, callback, thisArg) {
+callback = lodash.createCallback(callback, thisArg, 3);
+if (isArray(collection)) {
+var index = -1,
+length = collection.length;
+while (++index < length) {
+var value = collection[index];
+if (callback(value, index, collection)) {
+return value;
+}
+}
+} else {
+var result;
+baseEach(collection, function(value, index, collection) {
+if (callback(value, index, collection)) {
+result = value;
+return false;
+}
+});
+return result;
+}
+}
+/**
+* This method is like `_.find` except that it iterates over elements
+* of a `collection` from right to left.
+*
+* @static
+* @memberOf _
+* @category Collections
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {Function|Object|string} [callback=identity] The function called
+*  per iteration. If a property name or object is provided it will be used
+*  to create a "_.pluck" or "_.where" style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {*} Returns the found element, else `undefined`.
+* @example
+*
+* _.findLast([1, 2, 3, 4], function(num) {
+*   return num % 2 == 1;
+* });
+* // => 3
+*/
+function findLast(collection, callback, thisArg) {
+var result;
+callback = lodash.createCallback(callback, thisArg, 3);
+forEachRight(collection, function(value, index, collection) {
+if (callback(value, index, collection)) {
+result = value;
+return false;
+}
+});
+return result;
+}
+/**
+* Iterates over elements of a collection, executing the callback for each
+* element. The callback is bound to `thisArg` and invoked with three arguments;
+* (value, index|key, collection). Callbacks may exit iteration early by
+* explicitly returning `false`.
+*
+* Note: As with other "Collections" methods, objects with a `length` property
+* are iterated like arrays. To avoid this behavior `_.forIn` or `_.forOwn`
+* may be used for object iteration.
+*
+* @static
+* @memberOf _
+* @alias each
+* @category Collections
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {Function} [callback=identity] The function called per iteration.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Array|Object|string} Returns `collection`.
+* @example
+*
+* _([1, 2, 3]).forEach(function(num) { console.log(num); }).join(',');
+* // => logs each number and returns '1,2,3'
+*
+* _.forEach({ 'one': 1, 'two': 2, 'three': 3 }, function(num) { console.log(num); });
+* // => logs each number and returns the object (property order is not guaranteed across environments)
+*/
+function forEach(collection, callback, thisArg) {
+if (callback && typeof thisArg == 'undefined' && isArray(collection)) {
+var index = -1,
+length = collection.length;
+while (++index < length) {
+if (callback(collection[index], index, collection) === false) {
+break;
+}
+}
+} else {
+baseEach(collection, callback, thisArg);
+}
+return collection;
+}
+/**
+* This method is like `_.forEach` except that it iterates over elements
+* of a `collection` from right to left.
+*
+* @static
+* @memberOf _
+* @alias eachRight
+* @category Collections
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {Function} [callback=identity] The function called per iteration.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Array|Object|string} Returns `collection`.
+* @example
+*
+* _([1, 2, 3]).forEachRight(function(num) { console.log(num); }).join(',');
+* // => logs each number from right to left and returns '3,2,1'
+*/
+function forEachRight(collection, callback, thisArg) {
+var iterable = collection,
+length = collection ? collection.length : 0;
+callback = callback && typeof thisArg == 'undefined' ? callback : baseCreateCallback(callback, thisArg, 3);
+if (isArray(collection)) {
+while (length--) {
+if (callback(collection[length], length, collection) === false) {
+break;
+}
+}
+} else {
+if (typeof length != 'number') {
+var props = keys(collection);
+length = props.length;
+} else if (support.unindexedChars && isString(collection)) {
+iterable = collection.split('');
+}
+baseEach(collection, function(value, key, collection) {
+key = props ? props[--length] : --length;
+return callback(iterable[key], key, collection);
+});
+}
+return collection;
+}
+/**
+* Creates an object composed of keys generated from the results of running
+* each element of a collection through the callback. The corresponding value
+* of each key is an array of the elements responsible for generating the key.
+* The callback is bound to `thisArg` and invoked with three arguments;
+* (value, index|key, collection).
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`
+*
+* @static
+* @memberOf _
+* @category Collections
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {Function|Object|string} [callback=identity] The function called
+*  per iteration. If a property name or object is provided it will be used
+*  to create a "_.pluck" or "_.where" style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Object} Returns the composed aggregate object.
+* @example
+*
+* _.groupBy([4.2, 6.1, 6.4], function(num) { return Math.floor(num); });
+* // => { '4': [4.2], '6': [6.1, 6.4] }
+*
+* _.groupBy([4.2, 6.1, 6.4], function(num) { return this.floor(num); }, Math);
+* // => { '4': [4.2], '6': [6.1, 6.4] }
+*
+* // using "_.pluck" callback shorthand
+* _.groupBy(['one', 'two', 'three'], 'length');
+* // => { '3': ['one', 'two'], '5': ['three'] }
+*/
+var groupBy = createAggregator(function(result, value, key) {
+(hasOwnProperty.call(result, key) ? result[key] : result[key] = []).push(value);
+});
+/**
+* Creates an object composed of keys generated from the results of running
+* each element of the collection through the given callback. The corresponding
+* value of each key is the last element responsible for generating the key.
+* The callback is bound to `thisArg` and invoked with three arguments;
+* (value, index|key, collection).
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @category Collections
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {Function|Object|string} [callback=identity] The function called
+*  per iteration. If a property name or object is provided it will be used
+*  to create a "_.pluck" or "_.where" style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Object} Returns the composed aggregate object.
+* @example
+*
+* var keys = [
+*   { 'dir': 'left', 'code': 97 },
+*   { 'dir': 'right', 'code': 100 }
+* ];
+*
+* _.indexBy(keys, 'dir');
+* // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }
+*
+* _.indexBy(keys, function(key) { return String.fromCharCode(key.code); });
+* // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
+*
+* _.indexBy(characters, function(key) { this.fromCharCode(key.code); }, String);
+* // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
+*/
+var indexBy = createAggregator(function(result, value, key) {
+result[key] = value;
+});
+/**
+* Invokes the method named by `methodName` on each element in the `collection`
+* returning an array of the results of each invoked method. Additional arguments
+* will be provided to each invoked method. If `methodName` is a function it
+* will be invoked for, and `this` bound to, each element in the `collection`.
+*
+* @static
+* @memberOf _
+* @category Collections
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {Function|string} methodName The name of the method to invoke or
+*  the function invoked per iteration.
+* @param {...*} [arg] Arguments to invoke the method with.
+* @returns {Array} Returns a new array of the results of each invoked method.
+* @example
+*
+* _.invoke([[5, 1, 7], [3, 2, 1]], 'sort');
+* // => [[1, 5, 7], [1, 2, 3]]
+*
+* _.invoke([123, 456], String.prototype.split, '');
+* // => [['1', '2', '3'], ['4', '5', '6']]
+*/
+function invoke(collection, methodName) {
+var args = slice(arguments, 2),
+index = -1,
+isFunc = typeof methodName == 'function',
+length = collection ? collection.length : 0,
+result = Array(typeof length == 'number' ? length : 0);
+forEach(collection, function(value) {
+result[++index] = (isFunc ? methodName : value[methodName]).apply(value, args);
+});
+return result;
+}
+/**
+* Creates an array of values by running each element in the collection
+* through the callback. The callback is bound to `thisArg` and invoked with
+* three arguments; (value, index|key, collection).
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @alias collect
+* @category Collections
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {Function|Object|string} [callback=identity] The function called
+*  per iteration. If a property name or object is provided it will be used
+*  to create a "_.pluck" or "_.where" style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Array} Returns a new array of the results of each `callback` execution.
+* @example
+*
+* _.map([1, 2, 3], function(num) { return num * 3; });
+* // => [3, 6, 9]
+*
+* _.map({ 'one': 1, 'two': 2, 'three': 3 }, function(num) { return num * 3; });
+* // => [3, 6, 9] (property order is not guaranteed across environments)
+*
+* var characters = [
+*   { 'name': 'barney', 'age': 36 },
+*   { 'name': 'fred',   'age': 40 }
+* ];
+*
+* // using "_.pluck" callback shorthand
+* _.map(characters, 'name');
+* // => ['barney', 'fred']
+*/
+function map(collection, callback, thisArg) {
+var index = -1,
+length = collection ? collection.length : 0,
+result = Array(typeof length == 'number' ? length : 0);
+callback = lodash.createCallback(callback, thisArg, 3);
+if (isArray(collection)) {
+while (++index < length) {
+result[index] = callback(collection[index], index, collection);
+}
+} else {
+baseEach(collection, function(value, key, collection) {
+result[++index] = callback(value, key, collection);
+});
+}
+return result;
+}
+/**
+* Retrieves the maximum value of a collection. If the collection is empty or
+* falsey `-Infinity` is returned. If a callback is provided it will be executed
+* for each value in the collection to generate the criterion by which the value
+* is ranked. The callback is bound to `thisArg` and invoked with three
+* arguments; (value, index, collection).
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @category Collections
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {Function|Object|string} [callback=identity] The function called
+*  per iteration. If a property name or object is provided it will be used
+*  to create a "_.pluck" or "_.where" style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {*} Returns the maximum value.
+* @example
+*
+* _.max([4, 2, 8, 6]);
+* // => 8
+*
+* var characters = [
+*   { 'name': 'barney', 'age': 36 },
+*   { 'name': 'fred',   'age': 40 }
+* ];
+*
+* _.max(characters, function(chr) { return chr.age; });
+* // => { 'name': 'fred', 'age': 40 };
+*
+* // using "_.pluck" callback shorthand
+* _.max(characters, 'age');
+* // => { 'name': 'fred', 'age': 40 };
+*/
+function max(collection, callback, thisArg) {
+var computed = -Infinity,
+result = computed;
+// allows working with functions like `_.map` without using
+// their `index` argument as a callback
+if (typeof callback != 'function' && thisArg && thisArg[callback] === collection) {
+callback = null;
+}
+if (callback == null && isArray(collection)) {
+var index = -1,
+length = collection.length;
+while (++index < length) {
+var value = collection[index];
+if (value > result) {
+result = value;
+}
+}
+} else {
+callback = (callback == null && isString(collection))
+? charAtCallback
+: lodash.createCallback(callback, thisArg, 3);
+baseEach(collection, function(value, index, collection) {
+var current = callback(value, index, collection);
+if (current > computed) {
+computed = current;
+result = value;
+}
+});
+}
+return result;
+}
+/**
+* Retrieves the minimum value of a collection. If the collection is empty or
+* falsey `Infinity` is returned. If a callback is provided it will be executed
+* for each value in the collection to generate the criterion by which the value
+* is ranked. The callback is bound to `thisArg` and invoked with three
+* arguments; (value, index, collection).
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @category Collections
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {Function|Object|string} [callback=identity] The function called
+*  per iteration. If a property name or object is provided it will be used
+*  to create a "_.pluck" or "_.where" style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {*} Returns the minimum value.
+* @example
+*
+* _.min([4, 2, 8, 6]);
+* // => 2
+*
+* var characters = [
+*   { 'name': 'barney', 'age': 36 },
+*   { 'name': 'fred',   'age': 40 }
+* ];
+*
+* _.min(characters, function(chr) { return chr.age; });
+* // => { 'name': 'barney', 'age': 36 };
+*
+* // using "_.pluck" callback shorthand
+* _.min(characters, 'age');
+* // => { 'name': 'barney', 'age': 36 };
+*/
+function min(collection, callback, thisArg) {
+var computed = Infinity,
+result = computed;
+// allows working with functions like `_.map` without using
+// their `index` argument as a callback
+if (typeof callback != 'function' && thisArg && thisArg[callback] === collection) {
+callback = null;
+}
+if (callback == null && isArray(collection)) {
+var index = -1,
+length = collection.length;
+while (++index < length) {
+var value = collection[index];
+if (value < result) {
+result = value;
+}
+}
+} else {
+callback = (callback == null && isString(collection))
+? charAtCallback
+: lodash.createCallback(callback, thisArg, 3);
+baseEach(collection, function(value, index, collection) {
+var current = callback(value, index, collection);
+if (current < computed) {
+computed = current;
+result = value;
+}
+});
+}
+return result;
+}
+/**
+* Retrieves the value of a specified property from all elements in the collection.
+*
+* @static
+* @memberOf _
+* @type Function
+* @category Collections
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {string} property The name of the property to pluck.
+* @returns {Array} Returns a new array of property values.
+* @example
+*
+* var characters = [
+*   { 'name': 'barney', 'age': 36 },
+*   { 'name': 'fred',   'age': 40 }
+* ];
+*
+* _.pluck(characters, 'name');
+* // => ['barney', 'fred']
+*/
+var pluck = map;
+/**
+* Reduces a collection to a value which is the accumulated result of running
+* each element in the collection through the callback, where each successive
+* callback execution consumes the return value of the previous execution. If
+* `accumulator` is not provided the first element of the collection will be
+* used as the initial `accumulator` value. The callback is bound to `thisArg`
+* and invoked with four arguments; (accumulator, value, index|key, collection).
+*
+* @static
+* @memberOf _
+* @alias foldl, inject
+* @category Collections
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {Function} [callback=identity] The function called per iteration.
+* @param {*} [accumulator] Initial value of the accumulator.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {*} Returns the accumulated value.
+* @example
+*
+* var sum = _.reduce([1, 2, 3], function(sum, num) {
+*   return sum + num;
+* });
+* // => 6
+*
+* var mapped = _.reduce({ 'a': 1, 'b': 2, 'c': 3 }, function(result, num, key) {
+*   result[key] = num * 3;
+*   return result;
+* }, {});
+* // => { 'a': 3, 'b': 6, 'c': 9 }
+*/
+function reduce(collection, callback, accumulator, thisArg) {
+var noaccum = arguments.length < 3;
+callback = lodash.createCallback(callback, thisArg, 4);
+if (isArray(collection)) {
+var index = -1,
+length = collection.length;
+if (noaccum) {
+accumulator = collection[++index];
+}
+while (++index < length) {
+accumulator = callback(accumulator, collection[index], index, collection);
+}
+} else {
+baseEach(collection, function(value, index, collection) {
+accumulator = noaccum
+? (noaccum = false, value)
+: callback(accumulator, value, index, collection)
+});
+}
+return accumulator;
+}
+/**
+* This method is like `_.reduce` except that it iterates over elements
+* of a `collection` from right to left.
+*
+* @static
+* @memberOf _
+* @alias foldr
+* @category Collections
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {Function} [callback=identity] The function called per iteration.
+* @param {*} [accumulator] Initial value of the accumulator.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {*} Returns the accumulated value.
+* @example
+*
+* var list = [[0, 1], [2, 3], [4, 5]];
+* var flat = _.reduceRight(list, function(a, b) { return a.concat(b); }, []);
+* // => [4, 5, 2, 3, 0, 1]
+*/
+function reduceRight(collection, callback, accumulator, thisArg) {
+var noaccum = arguments.length < 3;
+callback = lodash.createCallback(callback, thisArg, 4);
+forEachRight(collection, function(value, index, collection) {
+accumulator = noaccum
+? (noaccum = false, value)
+: callback(accumulator, value, index, collection);
+});
+return accumulator;
+}
+/**
+* The opposite of `_.filter` this method returns the elements of a
+* collection that the callback does **not** return truey for.
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @category Collections
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {Function|Object|string} [callback=identity] The function called
+*  per iteration. If a property name or object is provided it will be used
+*  to create a "_.pluck" or "_.where" style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Array} Returns a new array of elements that failed the callback check.
+* @example
+*
+* var odds = _.reject([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; });
+* // => [1, 3, 5]
+*
+* var characters = [
+*   { 'name': 'barney', 'age': 36, 'blocked': false },
+*   { 'name': 'fred',   'age': 40, 'blocked': true }
+* ];
+*
+* // using "_.pluck" callback shorthand
+* _.reject(characters, 'blocked');
+* // => [{ 'name': 'barney', 'age': 36, 'blocked': false }]
+*
+* // using "_.where" callback shorthand
+* _.reject(characters, { 'age': 36 });
+* // => [{ 'name': 'fred', 'age': 40, 'blocked': true }]
+*/
+function reject(collection, callback, thisArg) {
+callback = lodash.createCallback(callback, thisArg, 3);
+return filter(collection, function(value, index, collection) {
+return !callback(value, index, collection);
+});
+}
+/**
+* Retrieves a random element or `n` random elements from a collection.
+*
+* @static
+* @memberOf _
+* @category Collections
+* @param {Array|Object|string} collection The collection to sample.
+* @param {number} [n] The number of elements to sample.
+* @param- {Object} [guard] Allows working with functions like `_.map`
+*  without using their `index` arguments as `n`.
+* @returns {Array} Returns the random sample(s) of `collection`.
+* @example
+*
+* _.sample([1, 2, 3, 4]);
+* // => 2
+*
+* _.sample([1, 2, 3, 4], 2);
+* // => [3, 1]
+*/
+function sample(collection, n, guard) {
+if (collection && typeof collection.length != 'number') {
+collection = values(collection);
+} else if (support.unindexedChars && isString(collection)) {
+collection = collection.split('');
+}
+if (n == null || guard) {
+return collection ? collection[baseRandom(0, collection.length - 1)] : undefined;
+}
+var result = shuffle(collection);
+result.length = nativeMin(nativeMax(0, n), result.length);
+return result;
+}
+/**
+* Creates an array of shuffled values, using a version of the Fisher-Yates
+* shuffle. See http://en.wikipedia.org/wiki/Fisher-Yates_shuffle.
+*
+* @static
+* @memberOf _
+* @category Collections
+* @param {Array|Object|string} collection The collection to shuffle.
+* @returns {Array} Returns a new shuffled collection.
+* @example
+*
+* _.shuffle([1, 2, 3, 4, 5, 6]);
+* // => [4, 1, 6, 3, 5, 2]
+*/
+function shuffle(collection) {
+var index = -1,
+length = collection ? collection.length : 0,
+result = Array(typeof length == 'number' ? length : 0);
+forEach(collection, function(value) {
+var rand = baseRandom(0, ++index);
+result[index] = result[rand];
+result[rand] = value;
+});
+return result;
+}
+/**
+* Gets the size of the `collection` by returning `collection.length` for arrays
+* and array-like objects or the number of own enumerable properties for objects.
+*
+* @static
+* @memberOf _
+* @category Collections
+* @param {Array|Object|string} collection The collection to inspect.
+* @returns {number} Returns `collection.length` or number of own enumerable properties.
+* @example
+*
+* _.size([1, 2]);
+* // => 2
+*
+* _.size({ 'one': 1, 'two': 2, 'three': 3 });
+* // => 3
+*
+* _.size('pebbles');
+* // => 7
+*/
+function size(collection) {
+var length = collection ? collection.length : 0;
+return typeof length == 'number' ? length : keys(collection).length;
+}
+/**
+* Checks if the callback returns a truey value for **any** element of a
+* collection. The function returns as soon as it finds a passing value and
+* does not iterate over the entire collection. The callback is bound to
+* `thisArg` and invoked with three arguments; (value, index|key, collection).
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @alias any
+* @category Collections
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {Function|Object|string} [callback=identity] The function called
+*  per iteration. If a property name or object is provided it will be used
+*  to create a "_.pluck" or "_.where" style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {boolean} Returns `true` if any element passed the callback check,
+*  else `false`.
+* @example
+*
+* _.some([null, 0, 'yes', false], Boolean);
+* // => true
+*
+* var characters = [
+*   { 'name': 'barney', 'age': 36, 'blocked': false },
+*   { 'name': 'fred',   'age': 40, 'blocked': true }
+* ];
+*
+* // using "_.pluck" callback shorthand
+* _.some(characters, 'blocked');
+* // => true
+*
+* // using "_.where" callback shorthand
+* _.some(characters, { 'age': 1 });
+* // => false
+*/
+function some(collection, callback, thisArg) {
+var result;
+callback = lodash.createCallback(callback, thisArg, 3);
+if (isArray(collection)) {
+var index = -1,
+length = collection.length;
+while (++index < length) {
+if ((result = callback(collection[index], index, collection))) {
+break;
+}
+}
+} else {
+baseEach(collection, function(value, index, collection) {
+return !(result = callback(value, index, collection));
+});
+}
+return !!result;
+}
+/**
+* Creates an array of elements, sorted in ascending order by the results of
+* running each element in a collection through the callback. This method
+* performs a stable sort, that is, it will preserve the original sort order
+* of equal elements. The callback is bound to `thisArg` and invoked with
+* three arguments; (value, index|key, collection).
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an array of property names is provided for `callback` the collection
+* will be sorted by each property value.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @category Collections
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {Array|Function|Object|string} [callback=identity] The function called
+*  per iteration. If a property name or object is provided it will be used
+*  to create a "_.pluck" or "_.where" style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Array} Returns a new array of sorted elements.
+* @example
+*
+* _.sortBy([1, 2, 3], function(num) { return Math.sin(num); });
+* // => [3, 1, 2]
+*
+* _.sortBy([1, 2, 3], function(num) { return this.sin(num); }, Math);
+* // => [3, 1, 2]
+*
+* var characters = [
+*   { 'name': 'barney',  'age': 36 },
+*   { 'name': 'fred',    'age': 40 },
+*   { 'name': 'barney',  'age': 26 },
+*   { 'name': 'fred',    'age': 30 }
+* ];
+*
+* // using "_.pluck" callback shorthand
+* _.map(_.sortBy(characters, 'age'), _.values);
+* // => [['barney', 26], ['fred', 30], ['barney', 36], ['fred', 40]]
+*
+* // sorting by multiple properties
+* _.map(_.sortBy(characters, ['name', 'age']), _.values);
+* // = > [['barney', 26], ['barney', 36], ['fred', 30], ['fred', 40]]
+*/
+function sortBy(collection, callback, thisArg) {
+var index = -1,
+isArr = isArray(callback),
+length = collection ? collection.length : 0,
+result = Array(typeof length == 'number' ? length : 0);
+if (!isArr) {
+callback = lodash.createCallback(callback, thisArg, 3);
+}
+forEach(collection, function(value, key, collection) {
+var object = result[++index] = getObject();
+if (isArr) {
+object.criteria = map(callback, function(key) { return value[key]; });
+} else {
+(object.criteria = getArray())[0] = callback(value, key, collection);
+}
+object.index = index;
+object.value = value;
+});
+length = result.length;
+result.sort(compareAscending);
+while (length--) {
+var object = result[length];
+result[length] = object.value;
+if (!isArr) {
+releaseArray(object.criteria);
+}
+releaseObject(object);
+}
+return result;
+}
+/**
+* Converts the `collection` to an array.
+*
+* @static
+* @memberOf _
+* @category Collections
+* @param {Array|Object|string} collection The collection to convert.
+* @returns {Array} Returns the new converted array.
+* @example
+*
+* (function() { return _.toArray(arguments).slice(1); })(1, 2, 3, 4);
+* // => [2, 3, 4]
+*/
+function toArray(collection) {
+if (collection && typeof collection.length == 'number') {
+return (support.unindexedChars && isString(collection))
+? collection.split('')
+: slice(collection);
+}
+return values(collection);
+}
+/**
+* Performs a deep comparison of each element in a `collection` to the given
+* `properties` object, returning an array of all elements that have equivalent
+* property values.
+*
+* @static
+* @memberOf _
+* @type Function
+* @category Collections
+* @param {Array|Object|string} collection The collection to iterate over.
+* @param {Object} props The object of property values to filter by.
+* @returns {Array} Returns a new array of elements that have the given properties.
+* @example
+*
+* var characters = [
+*   { 'name': 'barney', 'age': 36, 'pets': ['hoppy'] },
+*   { 'name': 'fred',   'age': 40, 'pets': ['baby puss', 'dino'] }
+* ];
+*
+* _.where(characters, { 'age': 36 });
+* // => [{ 'name': 'barney', 'age': 36, 'pets': ['hoppy'] }]
+*
+* _.where(characters, { 'pets': ['dino'] });
+* // => [{ 'name': 'fred', 'age': 40, 'pets': ['baby puss', 'dino'] }]
+*/
+var where = filter;
+/*--------------------------------------------------------------------------*/
+/**
+* Creates an array with all falsey values removed. The values `false`, `null`,
+* `0`, `""`, `undefined`, and `NaN` are all falsey.
+*
+* @static
+* @memberOf _
+* @category Arrays
+* @param {Array} array The array to compact.
+* @returns {Array} Returns a new array of filtered values.
+* @example
+*
+* _.compact([0, 1, false, 2, '', 3]);
+* // => [1, 2, 3]
+*/
+function compact(array) {
+var index = -1,
+length = array ? array.length : 0,
+result = [];
+while (++index < length) {
+var value = array[index];
+if (value) {
+result.push(value);
+}
+}
+return result;
+}
+/**
+* Creates an array excluding all values of the provided arrays using strict
+* equality for comparisons, i.e. `===`.
+*
+* @static
+* @memberOf _
+* @category Arrays
+* @param {Array} array The array to process.
+* @param {...Array} [values] The arrays of values to exclude.
+* @returns {Array} Returns a new array of filtered values.
+* @example
+*
+* _.difference([1, 2, 3, 4, 5], [5, 2, 10]);
+* // => [1, 3, 4]
+*/
+function difference(array) {
+return baseDifference(array, baseFlatten(arguments, true, true, 1));
+}
+/**
+* This method is like `_.find` except that it returns the index of the first
+* element that passes the callback check, instead of the element itself.
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @category Arrays
+* @param {Array} array The array to search.
+* @param {Function|Object|string} [callback=identity] The function called
+*  per iteration. If a property name or object is provided it will be used
+*  to create a "_.pluck" or "_.where" style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {number} Returns the index of the found element, else `-1`.
+* @example
+*
+* var characters = [
+*   { 'name': 'barney',  'age': 36, 'blocked': false },
+*   { 'name': 'fred',    'age': 40, 'blocked': true },
+*   { 'name': 'pebbles', 'age': 1,  'blocked': false }
+* ];
+*
+* _.findIndex(characters, function(chr) {
+*   return chr.age < 20;
+* });
+* // => 2
+*
+* // using "_.where" callback shorthand
+* _.findIndex(characters, { 'age': 36 });
+* // => 0
+*
+* // using "_.pluck" callback shorthand
+* _.findIndex(characters, 'blocked');
+* // => 1
+*/
+function findIndex(array, callback, thisArg) {
+var index = -1,
+length = array ? array.length : 0;
+callback = lodash.createCallback(callback, thisArg, 3);
+while (++index < length) {
+if (callback(array[index], index, array)) {
+return index;
+}
+}
+return -1;
+}
+/**
+* This method is like `_.findIndex` except that it iterates over elements
+* of a `collection` from right to left.
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @category Arrays
+* @param {Array} array The array to search.
+* @param {Function|Object|string} [callback=identity] The function called
+*  per iteration. If a property name or object is provided it will be used
+*  to create a "_.pluck" or "_.where" style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {number} Returns the index of the found element, else `-1`.
+* @example
+*
+* var characters = [
+*   { 'name': 'barney',  'age': 36, 'blocked': true },
+*   { 'name': 'fred',    'age': 40, 'blocked': false },
+*   { 'name': 'pebbles', 'age': 1,  'blocked': true }
+* ];
+*
+* _.findLastIndex(characters, function(chr) {
+*   return chr.age > 30;
+* });
+* // => 1
+*
+* // using "_.where" callback shorthand
+* _.findLastIndex(characters, { 'age': 36 });
+* // => 0
+*
+* // using "_.pluck" callback shorthand
+* _.findLastIndex(characters, 'blocked');
+* // => 2
+*/
+function findLastIndex(array, callback, thisArg) {
+var length = array ? array.length : 0;
+callback = lodash.createCallback(callback, thisArg, 3);
+while (length--) {
+if (callback(array[length], length, array)) {
+return length;
+}
+}
+return -1;
+}
+/**
+* Gets the first element or first `n` elements of an array. If a callback
+* is provided elements at the beginning of the array are returned as long
+* as the callback returns truey. The callback is bound to `thisArg` and
+* invoked with three arguments; (value, index, array).
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @alias head, take
+* @category Arrays
+* @param {Array} array The array to query.
+* @param {Function|Object|number|string} [callback] The function called
+*  per element or the number of elements to return. If a property name or
+*  object is provided it will be used to create a "_.pluck" or "_.where"
+*  style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {*} Returns the first element(s) of `array`.
+* @example
+*
+* _.first([1, 2, 3]);
+* // => 1
+*
+* _.first([1, 2, 3], 2);
+* // => [1, 2]
+*
+* _.first([1, 2, 3], function(num) {
+*   return num < 3;
+* });
+* // => [1, 2]
+*
+* var characters = [
+*   { 'name': 'barney',  'blocked': true,  'employer': 'slate' },
+*   { 'name': 'fred',    'blocked': false, 'employer': 'slate' },
+*   { 'name': 'pebbles', 'blocked': true,  'employer': 'na' }
+* ];
+*
+* // using "_.pluck" callback shorthand
+* _.first(characters, 'blocked');
+* // => [{ 'name': 'barney', 'blocked': true, 'employer': 'slate' }]
+*
+* // using "_.where" callback shorthand
+* _.pluck(_.first(characters, { 'employer': 'slate' }), 'name');
+* // => ['barney', 'fred']
+*/
+function first(array, callback, thisArg) {
+var n = 0,
+length = array ? array.length : 0;
+if (typeof callback != 'number' && callback != null) {
+var index = -1;
+callback = lodash.createCallback(callback, thisArg, 3);
+while (++index < length && callback(array[index], index, array)) {
+n++;
+}
+} else {
+n = callback;
+if (n == null || thisArg) {
+return array ? array[0] : undefined;
+}
+}
+return slice(array, 0, nativeMin(nativeMax(0, n), length));
+}
+/**
+* Flattens a nested array (the nesting can be to any depth). If `isShallow`
+* is truey, the array will only be flattened a single level. If a callback
+* is provided each element of the array is passed through the callback before
+* flattening. The callback is bound to `thisArg` and invoked with three
+* arguments; (value, index, array).
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @category Arrays
+* @param {Array} array The array to flatten.
+* @param {boolean} [isShallow=false] A flag to restrict flattening to a single level.
+* @param {Function|Object|string} [callback=identity] The function called
+*  per iteration. If a property name or object is provided it will be used
+*  to create a "_.pluck" or "_.where" style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Array} Returns a new flattened array.
+* @example
+*
+* _.flatten([1, [2], [3, [[4]]]]);
+* // => [1, 2, 3, 4];
+*
+* _.flatten([1, [2], [3, [[4]]]], true);
+* // => [1, 2, 3, [[4]]];
+*
+* var characters = [
+*   { 'name': 'barney', 'age': 30, 'pets': ['hoppy'] },
+*   { 'name': 'fred',   'age': 40, 'pets': ['baby puss', 'dino'] }
+* ];
+*
+* // using "_.pluck" callback shorthand
+* _.flatten(characters, 'pets');
+* // => ['hoppy', 'baby puss', 'dino']
+*/
+function flatten(array, isShallow, callback, thisArg) {
+// juggle arguments
+if (typeof isShallow != 'boolean' && isShallow != null) {
+thisArg = callback;
+callback = (typeof isShallow != 'function' && thisArg && thisArg[isShallow] === array) ? null : isShallow;
+isShallow = false;
+}
+if (callback != null) {
+array = map(array, callback, thisArg);
+}
+return baseFlatten(array, isShallow);
+}
+/**
+* Gets the index at which the first occurrence of `value` is found using
+* strict equality for comparisons, i.e. `===`. If the array is already sorted
+* providing `true` for `fromIndex` will run a faster binary search.
+*
+* @static
+* @memberOf _
+* @category Arrays
+* @param {Array} array The array to search.
+* @param {*} value The value to search for.
+* @param {boolean|number} [fromIndex=0] The index to search from or `true`
+*  to perform a binary search on a sorted array.
+* @returns {number} Returns the index of the matched value or `-1`.
+* @example
+*
+* _.indexOf([1, 2, 3, 1, 2, 3], 2);
+* // => 1
+*
+* _.indexOf([1, 2, 3, 1, 2, 3], 2, 3);
+* // => 4
+*
+* _.indexOf([1, 1, 2, 2, 3, 3], 2, true);
+* // => 2
+*/
+function indexOf(array, value, fromIndex) {
+if (typeof fromIndex == 'number') {
+var length = array ? array.length : 0;
+fromIndex = (fromIndex < 0 ? nativeMax(0, length + fromIndex) : fromIndex || 0);
+} else if (fromIndex) {
+var index = sortedIndex(array, value);
+return array[index] === value ? index : -1;
+}
+return baseIndexOf(array, value, fromIndex);
+}
+/**
+* Gets all but the last element or last `n` elements of an array. If a
+* callback is provided elements at the end of the array are excluded from
+* the result as long as the callback returns truey. The callback is bound
+* to `thisArg` and invoked with three arguments; (value, index, array).
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @category Arrays
+* @param {Array} array The array to query.
+* @param {Function|Object|number|string} [callback=1] The function called
+*  per element or the number of elements to exclude. If a property name or
+*  object is provided it will be used to create a "_.pluck" or "_.where"
+*  style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Array} Returns a slice of `array`.
+* @example
+*
+* _.initial([1, 2, 3]);
+* // => [1, 2]
+*
+* _.initial([1, 2, 3], 2);
+* // => [1]
+*
+* _.initial([1, 2, 3], function(num) {
+*   return num > 1;
+* });
+* // => [1]
+*
+* var characters = [
+*   { 'name': 'barney',  'blocked': false, 'employer': 'slate' },
+*   { 'name': 'fred',    'blocked': true,  'employer': 'slate' },
+*   { 'name': 'pebbles', 'blocked': true,  'employer': 'na' }
+* ];
+*
+* // using "_.pluck" callback shorthand
+* _.initial(characters, 'blocked');
+* // => [{ 'name': 'barney',  'blocked': false, 'employer': 'slate' }]
+*
+* // using "_.where" callback shorthand
+* _.pluck(_.initial(characters, { 'employer': 'na' }), 'name');
+* // => ['barney', 'fred']
+*/
+function initial(array, callback, thisArg) {
+var n = 0,
+length = array ? array.length : 0;
+if (typeof callback != 'number' && callback != null) {
+var index = length;
+callback = lodash.createCallback(callback, thisArg, 3);
+while (index-- && callback(array[index], index, array)) {
+n++;
+}
+} else {
+n = (callback == null || thisArg) ? 1 : callback || n;
+}
+return slice(array, 0, nativeMin(nativeMax(0, length - n), length));
+}
+/**
+* Creates an array of unique values present in all provided arrays using
+* strict equality for comparisons, i.e. `===`.
+*
+* @static
+* @memberOf _
+* @category Arrays
+* @param {...Array} [array] The arrays to inspect.
+* @returns {Array} Returns an array of shared values.
+* @example
+*
+* _.intersection([1, 2, 3], [5, 2, 1, 4], [2, 1]);
+* // => [1, 2]
+*/
+function intersection() {
+var args = [],
+argsIndex = -1,
+argsLength = arguments.length,
+caches = getArray(),
+indexOf = getIndexOf(),
+trustIndexOf = indexOf === baseIndexOf,
+seen = getArray();
+while (++argsIndex < argsLength) {
+var value = arguments[argsIndex];
+if (isArray(value) || isArguments(value)) {
+args.push(value);
+caches.push(trustIndexOf && value.length >= largeArraySize &&
+createCache(argsIndex ? args[argsIndex] : seen));
+}
+}
+var array = args[0],
+index = -1,
+length = array ? array.length : 0,
+result = [];
+outer:
+while (++index < length) {
+var cache = caches[0];
+value = array[index];
+if ((cache ? cacheIndexOf(cache, value) : indexOf(seen, value)) < 0) {
+argsIndex = argsLength;
+(cache || seen).push(value);
+while (--argsIndex) {
+cache = caches[argsIndex];
+if ((cache ? cacheIndexOf(cache, value) : indexOf(args[argsIndex], value)) < 0) {
+continue outer;
+}
+}
+result.push(value);
+}
+}
+while (argsLength--) {
+cache = caches[argsLength];
+if (cache) {
+releaseObject(cache);
+}
+}
+releaseArray(caches);
+releaseArray(seen);
+return result;
+}
+/**
+* Gets the last element or last `n` elements of an array. If a callback is
+* provided elements at the end of the array are returned as long as the
+* callback returns truey. The callback is bound to `thisArg` and invoked
+* with three arguments; (value, index, array).
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @category Arrays
+* @param {Array} array The array to query.
+* @param {Function|Object|number|string} [callback] The function called
+*  per element or the number of elements to return. If a property name or
+*  object is provided it will be used to create a "_.pluck" or "_.where"
+*  style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {*} Returns the last element(s) of `array`.
+* @example
+*
+* _.last([1, 2, 3]);
+* // => 3
+*
+* _.last([1, 2, 3], 2);
+* // => [2, 3]
+*
+* _.last([1, 2, 3], function(num) {
+*   return num > 1;
+* });
+* // => [2, 3]
+*
+* var characters = [
+*   { 'name': 'barney',  'blocked': false, 'employer': 'slate' },
+*   { 'name': 'fred',    'blocked': true,  'employer': 'slate' },
+*   { 'name': 'pebbles', 'blocked': true,  'employer': 'na' }
+* ];
+*
+* // using "_.pluck" callback shorthand
+* _.pluck(_.last(characters, 'blocked'), 'name');
+* // => ['fred', 'pebbles']
+*
+* // using "_.where" callback shorthand
+* _.last(characters, { 'employer': 'na' });
+* // => [{ 'name': 'pebbles', 'blocked': true, 'employer': 'na' }]
+*/
+function last(array, callback, thisArg) {
+var n = 0,
+length = array ? array.length : 0;
+if (typeof callback != 'number' && callback != null) {
+var index = length;
+callback = lodash.createCallback(callback, thisArg, 3);
+while (index-- && callback(array[index], index, array)) {
+n++;
+}
+} else {
+n = callback;
+if (n == null || thisArg) {
+return array ? array[length - 1] : undefined;
+}
+}
+return slice(array, nativeMax(0, length - n));
+}
+/**
+* Gets the index at which the last occurrence of `value` is found using strict
+* equality for comparisons, i.e. `===`. If `fromIndex` is negative, it is used
+* as the offset from the end of the collection.
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @category Arrays
+* @param {Array} array The array to search.
+* @param {*} value The value to search for.
+* @param {number} [fromIndex=array.length-1] The index to search from.
+* @returns {number} Returns the index of the matched value or `-1`.
+* @example
+*
+* _.lastIndexOf([1, 2, 3, 1, 2, 3], 2);
+* // => 4
+*
+* _.lastIndexOf([1, 2, 3, 1, 2, 3], 2, 3);
+* // => 1
+*/
+function lastIndexOf(array, value, fromIndex) {
+var index = array ? array.length : 0;
+if (typeof fromIndex == 'number') {
+index = (fromIndex < 0 ? nativeMax(0, index + fromIndex) : nativeMin(fromIndex, index - 1)) + 1;
+}
+while (index--) {
+if (array[index] === value) {
+return index;
+}
+}
+return -1;
+}
+/**
+* Removes all provided values from the given array using strict equality for
+* comparisons, i.e. `===`.
+*
+* @static
+* @memberOf _
+* @category Arrays
+* @param {Array} array The array to modify.
+* @param {...*} [value] The values to remove.
+* @returns {Array} Returns `array`.
+* @example
+*
+* var array = [1, 2, 3, 1, 2, 3];
+* _.pull(array, 2, 3);
+* console.log(array);
+* // => [1, 1]
+*/
+function pull(array) {
+var args = arguments,
+argsIndex = 0,
+argsLength = args.length,
+length = array ? array.length : 0;
+while (++argsIndex < argsLength) {
+var index = -1,
+value = args[argsIndex];
+while (++index < length) {
+if (array[index] === value) {
+splice.call(array, index--, 1);
+length--;
+}
+}
+}
+return array;
+}
+/**
+* Creates an array of numbers (positive and/or negative) progressing from
+* `start` up to but not including `end`. If `start` is less than `stop` a
+* zero-length range is created unless a negative `step` is specified.
+*
+* @static
+* @memberOf _
+* @category Arrays
+* @param {number} [start=0] The start of the range.
+* @param {number} end The end of the range.
+* @param {number} [step=1] The value to increment or decrement by.
+* @returns {Array} Returns a new range array.
+* @example
+*
+* _.range(4);
+* // => [0, 1, 2, 3]
+*
+* _.range(1, 5);
+* // => [1, 2, 3, 4]
+*
+* _.range(0, 20, 5);
+* // => [0, 5, 10, 15]
+*
+* _.range(0, -4, -1);
+* // => [0, -1, -2, -3]
+*
+* _.range(1, 4, 0);
+* // => [1, 1, 1]
+*
+* _.range(0);
+* // => []
+*/
+function range(start, end, step) {
+start = +start || 0;
+step = typeof step == 'number' ? step : (+step || 1);
+if (end == null) {
+end = start;
+start = 0;
+}
+// use `Array(length)` so engines like Chakra and V8 avoid slower modes
+// http://youtu.be/XAqIpGU8ZZk#t=17m25s
+var index = -1,
+length = nativeMax(0, ceil((end - start) / (step || 1))),
+result = Array(length);
+while (++index < length) {
+result[index] = start;
+start += step;
+}
+return result;
+}
+/**
+* Removes all elements from an array that the callback returns truey for
+* and returns an array of removed elements. The callback is bound to `thisArg`
+* and invoked with three arguments; (value, index, array).
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @category Arrays
+* @param {Array} array The array to modify.
+* @param {Function|Object|string} [callback=identity] The function called
+*  per iteration. If a property name or object is provided it will be used
+*  to create a "_.pluck" or "_.where" style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Array} Returns a new array of removed elements.
+* @example
+*
+* var array = [1, 2, 3, 4, 5, 6];
+* var evens = _.remove(array, function(num) { return num % 2 == 0; });
+*
+* console.log(array);
+* // => [1, 3, 5]
+*
+* console.log(evens);
+* // => [2, 4, 6]
+*/
+function remove(array, callback, thisArg) {
+var index = -1,
+length = array ? array.length : 0,
+result = [];
+callback = lodash.createCallback(callback, thisArg, 3);
+while (++index < length) {
+var value = array[index];
+if (callback(value, index, array)) {
+result.push(value);
+splice.call(array, index--, 1);
+length--;
+}
+}
+return result;
+}
+/**
+* The opposite of `_.initial` this method gets all but the first element or
+* first `n` elements of an array. If a callback function is provided elements
+* at the beginning of the array are excluded from the result as long as the
+* callback returns truey. The callback is bound to `thisArg` and invoked
+* with three arguments; (value, index, array).
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @alias drop, tail
+* @category Arrays
+* @param {Array} array The array to query.
+* @param {Function|Object|number|string} [callback=1] The function called
+*  per element or the number of elements to exclude. If a property name or
+*  object is provided it will be used to create a "_.pluck" or "_.where"
+*  style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Array} Returns a slice of `array`.
+* @example
+*
+* _.rest([1, 2, 3]);
+* // => [2, 3]
+*
+* _.rest([1, 2, 3], 2);
+* // => [3]
+*
+* _.rest([1, 2, 3], function(num) {
+*   return num < 3;
+* });
+* // => [3]
+*
+* var characters = [
+*   { 'name': 'barney',  'blocked': true,  'employer': 'slate' },
+*   { 'name': 'fred',    'blocked': false,  'employer': 'slate' },
+*   { 'name': 'pebbles', 'blocked': true, 'employer': 'na' }
+* ];
+*
+* // using "_.pluck" callback shorthand
+* _.pluck(_.rest(characters, 'blocked'), 'name');
+* // => ['fred', 'pebbles']
+*
+* // using "_.where" callback shorthand
+* _.rest(characters, { 'employer': 'slate' });
+* // => [{ 'name': 'pebbles', 'blocked': true, 'employer': 'na' }]
+*/
+function rest(array, callback, thisArg) {
+if (typeof callback != 'number' && callback != null) {
+var n = 0,
+index = -1,
+length = array ? array.length : 0;
+callback = lodash.createCallback(callback, thisArg, 3);
+while (++index < length && callback(array[index], index, array)) {
+n++;
+}
+} else {
+n = (callback == null || thisArg) ? 1 : nativeMax(0, callback);
+}
+return slice(array, n);
+}
+/**
+* Uses a binary search to determine the smallest index at which a value
+* should be inserted into a given sorted array in order to maintain the sort
+* order of the array. If a callback is provided it will be executed for
+* `value` and each element of `array` to compute their sort ranking. The
+* callback is bound to `thisArg` and invoked with one argument; (value).
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @category Arrays
+* @param {Array} array The array to inspect.
+* @param {*} value The value to evaluate.
+* @param {Function|Object|string} [callback=identity] The function called
+*  per iteration. If a property name or object is provided it will be used
+*  to create a "_.pluck" or "_.where" style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {number} Returns the index at which `value` should be inserted
+*  into `array`.
+* @example
+*
+* _.sortedIndex([20, 30, 50], 40);
+* // => 2
+*
+* // using "_.pluck" callback shorthand
+* _.sortedIndex([{ 'x': 20 }, { 'x': 30 }, { 'x': 50 }], { 'x': 40 }, 'x');
+* // => 2
+*
+* var dict = {
+*   'wordToNumber': { 'twenty': 20, 'thirty': 30, 'fourty': 40, 'fifty': 50 }
+* };
+*
+* _.sortedIndex(['twenty', 'thirty', 'fifty'], 'fourty', function(word) {
+*   return dict.wordToNumber[word];
+* });
+* // => 2
+*
+* _.sortedIndex(['twenty', 'thirty', 'fifty'], 'fourty', function(word) {
+*   return this.wordToNumber[word];
+* }, dict);
+* // => 2
+*/
+function sortedIndex(array, value, callback, thisArg) {
+var low = 0,
+high = array ? array.length : low;
+// explicitly reference `identity` for better inlining in Firefox
+callback = callback ? lodash.createCallback(callback, thisArg, 1) : identity;
+value = callback(value);
+while (low < high) {
+var mid = (low + high) >>> 1;
+(callback(array[mid]) < value)
+? low = mid + 1
+: high = mid;
+}
+return low;
+}
+/**
+* Creates an array of unique values, in order, of the provided arrays using
+* strict equality for comparisons, i.e. `===`.
+*
+* @static
+* @memberOf _
+* @category Arrays
+* @param {...Array} [array] The arrays to inspect.
+* @returns {Array} Returns an array of combined values.
+* @example
+*
+* _.union([1, 2, 3], [5, 2, 1, 4], [2, 1]);
+* // => [1, 2, 3, 5, 4]
+*/
+function union() {
+return baseUniq(baseFlatten(arguments, true, true));
+}
+/**
+* Creates a duplicate-value-free version of an array using strict equality
+* for comparisons, i.e. `===`. If the array is sorted, providing
+* `true` for `isSorted` will use a faster algorithm. If a callback is provided
+* each element of `array` is passed through the callback before uniqueness
+* is computed. The callback is bound to `thisArg` and invoked with three
+* arguments; (value, index, array).
+*
+* If a property name is provided for `callback` the created "_.pluck" style
+* callback will return the property value of the given element.
+*
+* If an object is provided for `callback` the created "_.where" style callback
+* will return `true` for elements that have the properties of the given object,
+* else `false`.
+*
+* @static
+* @memberOf _
+* @alias unique
+* @category Arrays
+* @param {Array} array The array to process.
+* @param {boolean} [isSorted=false] A flag to indicate that `array` is sorted.
+* @param {Function|Object|string} [callback=identity] The function called
+*  per iteration. If a property name or object is provided it will be used
+*  to create a "_.pluck" or "_.where" style callback, respectively.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Array} Returns a duplicate-value-free array.
+* @example
+*
+* _.uniq([1, 2, 1, 3, 1]);
+* // => [1, 2, 3]
+*
+* _.uniq([1, 1, 2, 2, 3], true);
+* // => [1, 2, 3]
+*
+* _.uniq(['A', 'b', 'C', 'a', 'B', 'c'], function(letter) { return letter.toLowerCase(); });
+* // => ['A', 'b', 'C']
+*
+* _.uniq([1, 2.5, 3, 1.5, 2, 3.5], function(num) { return this.floor(num); }, Math);
+* // => [1, 2.5, 3]
+*
+* // using "_.pluck" callback shorthand
+* _.uniq([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
+* // => [{ 'x': 1 }, { 'x': 2 }]
+*/
+function uniq(array, isSorted, callback, thisArg) {
+// juggle arguments
+if (typeof isSorted != 'boolean' && isSorted != null) {
+thisArg = callback;
+callback = (typeof isSorted != 'function' && thisArg && thisArg[isSorted] === array) ? null : isSorted;
+isSorted = false;
+}
+if (callback != null) {
+callback = lodash.createCallback(callback, thisArg, 3);
+}
+return baseUniq(array, isSorted, callback);
+}
+/**
+* Creates an array excluding all provided values using strict equality for
+* comparisons, i.e. `===`.
+*
+* @static
+* @memberOf _
+* @category Arrays
+* @param {Array} array The array to filter.
+* @param {...*} [value] The values to exclude.
+* @returns {Array} Returns a new array of filtered values.
+* @example
+*
+* _.without([1, 2, 1, 0, 3, 1, 4], 0, 1);
+* // => [2, 3, 4]
+*/
+function without(array) {
+return baseDifference(array, slice(arguments, 1));
+}
+/**
+* Creates an array that is the symmetric difference of the provided arrays.
+* See http://en.wikipedia.org/wiki/Symmetric_difference.
+*
+* @static
+* @memberOf _
+* @category Arrays
+* @param {...Array} [array] The arrays to inspect.
+* @returns {Array} Returns an array of values.
+* @example
+*
+* _.xor([1, 2, 3], [5, 2, 1, 4]);
+* // => [3, 5, 4]
+*
+* _.xor([1, 2, 5], [2, 3, 5], [3, 4, 5]);
+* // => [1, 4, 5]
+*/
+function xor() {
+var index = -1,
+length = arguments.length;
+while (++index < length) {
+var array = arguments[index];
+if (isArray(array) || isArguments(array)) {
+var result = result
+? baseUniq(baseDifference(result, array).concat(baseDifference(array, result)))
+: array;
+}
+}
+return result || [];
+}
+/**
+* Creates an array of grouped elements, the first of which contains the first
+* elements of the given arrays, the second of which contains the second
+* elements of the given arrays, and so on.
+*
+* @static
+* @memberOf _
+* @alias unzip
+* @category Arrays
+* @param {...Array} [array] Arrays to process.
+* @returns {Array} Returns a new array of grouped elements.
+* @example
+*
+* _.zip(['fred', 'barney'], [30, 40], [true, false]);
+* // => [['fred', 30, true], ['barney', 40, false]]
+*/
+function zip() {
+var array = arguments.length > 1 ? arguments : arguments[0],
+index = -1,
+length = array ? max(pluck(array, 'length')) : 0,
+result = Array(length < 0 ? 0 : length);
+while (++index < length) {
+result[index] = pluck(array, index);
+}
+return result;
+}
+/**
+* Creates an object composed from arrays of `keys` and `values`. Provide
+* either a single two dimensional array, i.e. `[[key1, value1], [key2, value2]]`
+* or two arrays, one of `keys` and one of corresponding `values`.
+*
+* @static
+* @memberOf _
+* @alias object
+* @category Arrays
+* @param {Array} keys The array of keys.
+* @param {Array} [values=[]] The array of values.
+* @returns {Object} Returns an object composed of the given keys and
+*  corresponding values.
+* @example
+*
+* _.zipObject(['fred', 'barney'], [30, 40]);
+* // => { 'fred': 30, 'barney': 40 }
+*/
+function zipObject(keys, values) {
+var index = -1,
+length = keys ? keys.length : 0,
+result = {};
+if (!values && length && !isArray(keys[0])) {
+values = [];
+}
+while (++index < length) {
+var key = keys[index];
+if (values) {
+result[key] = values[index];
+} else if (key) {
+result[key[0]] = key[1];
+}
+}
+return result;
+}
+/*--------------------------------------------------------------------------*/
+/**
+* Creates a function that executes `func`, with  the `this` binding and
+* arguments of the created function, only after being called `n` times.
+*
+* @static
+* @memberOf _
+* @category Functions
+* @param {number} n The number of times the function must be called before
+*  `func` is executed.
+* @param {Function} func The function to restrict.
+* @returns {Function} Returns the new restricted function.
+* @example
+*
+* var saves = ['profile', 'settings'];
+*
+* var done = _.after(saves.length, function() {
+*   console.log('Done saving!');
+* });
+*
+* _.forEach(saves, function(type) {
+*   asyncSave({ 'type': type, 'complete': done });
+* });
+* // => logs 'Done saving!', after all saves have completed
+*/
+function after(n, func) {
+if (!isFunction(func)) {
+throw new TypeError;
+}
+return function() {
+if (--n < 1) {
+return func.apply(this, arguments);
+}
+};
+}
+/**
+* Creates a function that, when called, invokes `func` with the `this`
+* binding of `thisArg` and prepends any additional `bind` arguments to those
+* provided to the bound function.
+*
+* @static
+* @memberOf _
+* @category Functions
+* @param {Function} func The function to bind.
+* @param {*} [thisArg] The `this` binding of `func`.
+* @param {...*} [arg] Arguments to be partially applied.
+* @returns {Function} Returns the new bound function.
+* @example
+*
+* var func = function(greeting) {
+*   return greeting + ' ' + this.name;
+* };
+*
+* func = _.bind(func, { 'name': 'fred' }, 'hi');
+* func();
+* // => 'hi fred'
+*/
+function bind(func, thisArg) {
+return arguments.length > 2
+? createWrapper(func, 17, slice(arguments, 2), null, thisArg)
+: createWrapper(func, 1, null, null, thisArg);
+}
+/**
+* Binds methods of an object to the object itself, overwriting the existing
+* method. Method names may be specified as individual arguments or as arrays
+* of method names. If no method names are provided all the function properties
+* of `object` will be bound.
+*
+* @static
+* @memberOf _
+* @category Functions
+* @param {Object} object The object to bind and assign the bound methods to.
+* @param {...string} [methodName] The object method names to
+*  bind, specified as individual method names or arrays of method names.
+* @returns {Object} Returns `object`.
+* @example
+*
+* var view = {
+*   'label': 'docs',
+*   'onClick': function() { console.log('clicked ' + this.label); }
+* };
+*
+* _.bindAll(view);
+* jQuery('#docs').on('click', view.onClick);
+* // => logs 'clicked docs', when the button is clicked
+*/
+function bindAll(object) {
+var funcs = arguments.length > 1 ? baseFlatten(arguments, true, false, 1) : functions(object),
+index = -1,
+length = funcs.length;
+while (++index < length) {
+var key = funcs[index];
+object[key] = createWrapper(object[key], 1, null, null, object);
+}
+return object;
+}
+/**
+* Creates a function that, when called, invokes the method at `object[key]`
+* and prepends any additional `bindKey` arguments to those provided to the bound
+* function. This method differs from `_.bind` by allowing bound functions to
+* reference methods that will be redefined or don't yet exist.
+* See http://michaux.ca/articles/lazy-function-definition-pattern.
+*
+* @static
+* @memberOf _
+* @category Functions
+* @param {Object} object The object the method belongs to.
+* @param {string} key The key of the method.
+* @param {...*} [arg] Arguments to be partially applied.
+* @returns {Function} Returns the new bound function.
+* @example
+*
+* var object = {
+*   'name': 'fred',
+*   'greet': function(greeting) {
+*     return greeting + ' ' + this.name;
+*   }
+* };
+*
+* var func = _.bindKey(object, 'greet', 'hi');
+* func();
+* // => 'hi fred'
+*
+* object.greet = function(greeting) {
+*   return greeting + 'ya ' + this.name + '!';
+* };
+*
+* func();
+* // => 'hiya fred!'
+*/
+function bindKey(object, key) {
+return arguments.length > 2
+? createWrapper(key, 19, slice(arguments, 2), null, object)
+: createWrapper(key, 3, null, null, object);
+}
+/**
+* Creates a function that is the composition of the provided functions,
+* where each function consumes the return value of the function that follows.
+* For example, composing the functions `f()`, `g()`, and `h()` produces `f(g(h()))`.
+* Each function is executed with the `this` binding of the composed function.
+*
+* @static
+* @memberOf _
+* @category Functions
+* @param {...Function} [func] Functions to compose.
+* @returns {Function} Returns the new composed function.
+* @example
+*
+* var realNameMap = {
+*   'pebbles': 'penelope'
+* };
+*
+* var format = function(name) {
+*   name = realNameMap[name.toLowerCase()] || name;
+*   return name.charAt(0).toUpperCase() + name.slice(1).toLowerCase();
+* };
+*
+* var greet = function(formatted) {
+*   return 'Hiya ' + formatted + '!';
+* };
+*
+* var welcome = _.compose(greet, format);
+* welcome('pebbles');
+* // => 'Hiya Penelope!'
+*/
+function compose() {
+var funcs = arguments,
+length = funcs.length;
+while (length--) {
+if (!isFunction(funcs[length])) {
+throw new TypeError;
+}
+}
+return function() {
+var args = arguments,
+length = funcs.length;
+while (length--) {
+args = [funcs[length].apply(this, args)];
+}
+return args[0];
+};
+}
+/**
+* Creates a function which accepts one or more arguments of `func` that when
+* invoked either executes `func` returning its result, if all `func` arguments
+* have been provided, or returns a function that accepts one or more of the
+* remaining `func` arguments, and so on. The arity of `func` can be specified
+* if `func.length` is not sufficient.
+*
+* @static
+* @memberOf _
+* @category Functions
+* @param {Function} func The function to curry.
+* @param {number} [arity=func.length] The arity of `func`.
+* @returns {Function} Returns the new curried function.
+* @example
+*
+* var curried = _.curry(function(a, b, c) {
+*   console.log(a + b + c);
+* });
+*
+* curried(1)(2)(3);
+* // => 6
+*
+* curried(1, 2)(3);
+* // => 6
+*
+* curried(1, 2, 3);
+* // => 6
+*/
+function curry(func, arity) {
+arity = typeof arity == 'number' ? arity : (+arity || func.length);
+return createWrapper(func, 4, null, null, null, arity);
+}
+/**
+* Creates a function that will delay the execution of `func` until after
+* `wait` milliseconds have elapsed since the last time it was invoked.
+* Provide an options object to indicate that `func` should be invoked on
+* the leading and/or trailing edge of the `wait` timeout. Subsequent calls
+* to the debounced function will return the result of the last `func` call.
+*
+* Note: If `leading` and `trailing` options are `true` `func` will be called
+* on the trailing edge of the timeout only if the the debounced function is
+* invoked more than once during the `wait` timeout.
+*
+* @static
+* @memberOf _
+* @category Functions
+* @param {Function} func The function to debounce.
+* @param {number} wait The number of milliseconds to delay.
+* @param {Object} [options] The options object.
+* @param {boolean} [options.leading=false] Specify execution on the leading edge of the timeout.
+* @param {number} [options.maxWait] The maximum time `func` is allowed to be delayed before it's called.
+* @param {boolean} [options.trailing=true] Specify execution on the trailing edge of the timeout.
+* @returns {Function} Returns the new debounced function.
+* @example
+*
+* // avoid costly calculations while the window size is in flux
+* var lazyLayout = _.debounce(calculateLayout, 150);
+* jQuery(window).on('resize', lazyLayout);
+*
+* // execute `sendMail` when the click event is fired, debouncing subsequent calls
+* jQuery('#postbox').on('click', _.debounce(sendMail, 300, {
+*   'leading': true,
+*   'trailing': false
+* });
+*
+* // ensure `batchLog` is executed once after 1 second of debounced calls
+* var source = new EventSource('/stream');
+* source.addEventListener('message', _.debounce(batchLog, 250, {
+*   'maxWait': 1000
+* }, false);
+*/
+function debounce(func, wait, options) {
+var args,
+maxTimeoutId,
+result,
+stamp,
+thisArg,
+timeoutId,
+trailingCall,
+lastCalled = 0,
+maxWait = false,
+trailing = true;
+if (!isFunction(func)) {
+throw new TypeError;
+}
+wait = nativeMax(0, wait) || 0;
+if (options === true) {
+var leading = true;
+trailing = false;
+} else if (isObject(options)) {
+leading = options.leading;
+maxWait = 'maxWait' in options && (nativeMax(wait, options.maxWait) || 0);
+trailing = 'trailing' in options ? options.trailing : trailing;
+}
+var delayed = function() {
+var remaining = wait - (now() - stamp);
+if (remaining <= 0) {
+if (maxTimeoutId) {
+clearTimeout(maxTimeoutId);
+}
+var isCalled = trailingCall;
+maxTimeoutId = timeoutId = trailingCall = undefined;
+if (isCalled) {
+lastCalled = now();
+result = func.apply(thisArg, args);
+if (!timeoutId && !maxTimeoutId) {
+args = thisArg = null;
+}
+}
+} else {
+timeoutId = setTimeout(delayed, remaining);
+}
+};
+var maxDelayed = function() {
+if (timeoutId) {
+clearTimeout(timeoutId);
+}
+maxTimeoutId = timeoutId = trailingCall = undefined;
+if (trailing || (maxWait !== wait)) {
+lastCalled = now();
+result = func.apply(thisArg, args);
+if (!timeoutId && !maxTimeoutId) {
+args = thisArg = null;
+}
+}
+};
+return function() {
+args = arguments;
+stamp = now();
+thisArg = this;
+trailingCall = trailing && (timeoutId || !leading);
+if (maxWait === false) {
+var leadingCall = leading && !timeoutId;
+} else {
+if (!maxTimeoutId && !leading) {
+lastCalled = stamp;
+}
+var remaining = maxWait - (stamp - lastCalled),
+isCalled = remaining <= 0;
+if (isCalled) {
+if (maxTimeoutId) {
+maxTimeoutId = clearTimeout(maxTimeoutId);
+}
+lastCalled = stamp;
+result = func.apply(thisArg, args);
+}
+else if (!maxTimeoutId) {
+maxTimeoutId = setTimeout(maxDelayed, remaining);
+}
+}
+if (isCalled && timeoutId) {
+timeoutId = clearTimeout(timeoutId);
+}
+else if (!timeoutId && wait !== maxWait) {
+timeoutId = setTimeout(delayed, wait);
+}
+if (leadingCall) {
+isCalled = true;
+result = func.apply(thisArg, args);
+}
+if (isCalled && !timeoutId && !maxTimeoutId) {
+args = thisArg = null;
+}
+return result;
+};
+}
+/**
+* Defers executing the `func` function until the current call stack has cleared.
+* Additional arguments will be provided to `func` when it is invoked.
+*
+* @static
+* @memberOf _
+* @category Functions
+* @param {Function} func The function to defer.
+* @param {...*} [arg] Arguments to invoke the function with.
+* @returns {number} Returns the timer id.
+* @example
+*
+* _.defer(function(text) { console.log(text); }, 'deferred');
+* // logs 'deferred' after one or more milliseconds
+*/
+function defer(func) {
+if (!isFunction(func)) {
+throw new TypeError;
+}
+var args = slice(arguments, 1);
+return setTimeout(function() { func.apply(undefined, args); }, 1);
+}
+/**
+* Executes the `func` function after `wait` milliseconds. Additional arguments
+* will be provided to `func` when it is invoked.
+*
+* @static
+* @memberOf _
+* @category Functions
+* @param {Function} func The function to delay.
+* @param {number} wait The number of milliseconds to delay execution.
+* @param {...*} [arg] Arguments to invoke the function with.
+* @returns {number} Returns the timer id.
+* @example
+*
+* _.delay(function(text) { console.log(text); }, 1000, 'later');
+* // => logs 'later' after one second
+*/
+function delay(func, wait) {
+if (!isFunction(func)) {
+throw new TypeError;
+}
+var args = slice(arguments, 2);
+return setTimeout(function() { func.apply(undefined, args); }, wait);
+}
+/**
+* Creates a function that memoizes the result of `func`. If `resolver` is
+* provided it will be used to determine the cache key for storing the result
+* based on the arguments provided to the memoized function. By default, the
+* first argument provided to the memoized function is used as the cache key.
+* The `func` is executed with the `this` binding of the memoized function.
+* The result cache is exposed as the `cache` property on the memoized function.
+*
+* @static
+* @memberOf _
+* @category Functions
+* @param {Function} func The function to have its output memoized.
+* @param {Function} [resolver] A function used to resolve the cache key.
+* @returns {Function} Returns the new memoizing function.
+* @example
+*
+* var fibonacci = _.memoize(function(n) {
+*   return n < 2 ? n : fibonacci(n - 1) + fibonacci(n - 2);
+* });
+*
+* fibonacci(9)
+* // => 34
+*
+* var data = {
+*   'fred': { 'name': 'fred', 'age': 40 },
+*   'pebbles': { 'name': 'pebbles', 'age': 1 }
+* };
+*
+* // modifying the result cache
+* var get = _.memoize(function(name) { return data[name]; }, _.identity);
+* get('pebbles');
+* // => { 'name': 'pebbles', 'age': 1 }
+*
+* get.cache.pebbles.name = 'penelope';
+* get('pebbles');
+* // => { 'name': 'penelope', 'age': 1 }
+*/
+function memoize(func, resolver) {
+if (!isFunction(func)) {
+throw new TypeError;
+}
+var memoized = function() {
+var cache = memoized.cache,
+key = resolver ? resolver.apply(this, arguments) : keyPrefix + arguments[0];
+return hasOwnProperty.call(cache, key)
+? cache[key]
+: (cache[key] = func.apply(this, arguments));
+}
+memoized.cache = {};
+return memoized;
+}
+/**
+* Creates a function that is restricted to execute `func` once. Repeat calls to
+* the function will return the value of the first call. The `func` is executed
+* with the `this` binding of the created function.
+*
+* @static
+* @memberOf _
+* @category Functions
+* @param {Function} func The function to restrict.
+* @returns {Function} Returns the new restricted function.
+* @example
+*
+* var initialize = _.once(createApplication);
+* initialize();
+* initialize();
+* // `initialize` executes `createApplication` once
+*/
+function once(func) {
+var ran,
+result;
+if (!isFunction(func)) {
+throw new TypeError;
+}
+return function() {
+if (ran) {
+return result;
+}
+ran = true;
+result = func.apply(this, arguments);
+// clear the `func` variable so the function may be garbage collected
+func = null;
+return result;
+};
+}
+/**
+* Creates a function that, when called, invokes `func` with any additional
+* `partial` arguments prepended to those provided to the new function. This
+* method is similar to `_.bind` except it does **not** alter the `this` binding.
+*
+* @static
+* @memberOf _
+* @category Functions
+* @param {Function} func The function to partially apply arguments to.
+* @param {...*} [arg] Arguments to be partially applied.
+* @returns {Function} Returns the new partially applied function.
+* @example
+*
+* var greet = function(greeting, name) { return greeting + ' ' + name; };
+* var hi = _.partial(greet, 'hi');
+* hi('fred');
+* // => 'hi fred'
+*/
+function partial(func) {
+return createWrapper(func, 16, slice(arguments, 1));
+}
+/**
+* This method is like `_.partial` except that `partial` arguments are
+* appended to those provided to the new function.
+*
+* @static
+* @memberOf _
+* @category Functions
+* @param {Function} func The function to partially apply arguments to.
+* @param {...*} [arg] Arguments to be partially applied.
+* @returns {Function} Returns the new partially applied function.
+* @example
+*
+* var defaultsDeep = _.partialRight(_.merge, _.defaults);
+*
+* var options = {
+*   'variable': 'data',
+*   'imports': { 'jq': $ }
+* };
+*
+* defaultsDeep(options, _.templateSettings);
+*
+* options.variable
+* // => 'data'
+*
+* options.imports
+* // => { '_': _, 'jq': $ }
+*/
+function partialRight(func) {
+return createWrapper(func, 32, null, slice(arguments, 1));
+}
+/**
+* Creates a function that, when executed, will only call the `func` function
+* at most once per every `wait` milliseconds. Provide an options object to
+* indicate that `func` should be invoked on the leading and/or trailing edge
+* of the `wait` timeout. Subsequent calls to the throttled function will
+* return the result of the last `func` call.
+*
+* Note: If `leading` and `trailing` options are `true` `func` will be called
+* on the trailing edge of the timeout only if the the throttled function is
+* invoked more than once during the `wait` timeout.
+*
+* @static
+* @memberOf _
+* @category Functions
+* @param {Function} func The function to throttle.
+* @param {number} wait The number of milliseconds to throttle executions to.
+* @param {Object} [options] The options object.
+* @param {boolean} [options.leading=true] Specify execution on the leading edge of the timeout.
+* @param {boolean} [options.trailing=true] Specify execution on the trailing edge of the timeout.
+* @returns {Function} Returns the new throttled function.
+* @example
+*
+* // avoid excessively updating the position while scrolling
+* var throttled = _.throttle(updatePosition, 100);
+* jQuery(window).on('scroll', throttled);
+*
+* // execute `renewToken` when the click event is fired, but not more than once every 5 minutes
+* jQuery('.interactive').on('click', _.throttle(renewToken, 300000, {
+*   'trailing': false
+* }));
+*/
+function throttle(func, wait, options) {
+var leading = true,
+trailing = true;
+if (!isFunction(func)) {
+throw new TypeError;
+}
+if (options === false) {
+leading = false;
+} else if (isObject(options)) {
+leading = 'leading' in options ? options.leading : leading;
+trailing = 'trailing' in options ? options.trailing : trailing;
+}
+debounceOptions.leading = leading;
+debounceOptions.maxWait = wait;
+debounceOptions.trailing = trailing;
+return debounce(func, wait, debounceOptions);
+}
+/**
+* Creates a function that provides `value` to the wrapper function as its
+* first argument. Additional arguments provided to the function are appended
+* to those provided to the wrapper function. The wrapper is executed with
+* the `this` binding of the created function.
+*
+* @static
+* @memberOf _
+* @category Functions
+* @param {*} value The value to wrap.
+* @param {Function} wrapper The wrapper function.
+* @returns {Function} Returns the new function.
+* @example
+*
+* var p = _.wrap(_.escape, function(func, text) {
+*   return '<p>' + func(text) + '</p>';
+* });
+*
+* p('Fred, Wilma, & Pebbles');
+* // => '<p>Fred, Wilma, &amp; Pebbles</p>'
+*/
+function wrap(value, wrapper) {
+return createWrapper(wrapper, 16, [value]);
+}
+/*--------------------------------------------------------------------------*/
+/**
+* Creates a function that returns `value`.
+*
+* @static
+* @memberOf _
+* @category Utilities
+* @param {*} value The value to return from the new function.
+* @returns {Function} Returns the new function.
+* @example
+*
+* var object = { 'name': 'fred' };
+* var getter = _.constant(object);
+* getter() === object;
+* // => true
+*/
+function constant(value) {
+return function() {
+return value;
+};
+}
+/**
+* Produces a callback bound to an optional `thisArg`. If `func` is a property
+* name the created callback will return the property value for a given element.
+* If `func` is an object the created callback will return `true` for elements
+* that contain the equivalent object properties, otherwise it will return `false`.
+*
+* @static
+* @memberOf _
+* @category Utilities
+* @param {*} [func=identity] The value to convert to a callback.
+* @param {*} [thisArg] The `this` binding of the created callback.
+* @param {number} [argCount] The number of arguments the callback accepts.
+* @returns {Function} Returns a callback function.
+* @example
+*
+* var characters = [
+*   { 'name': 'barney', 'age': 36 },
+*   { 'name': 'fred',   'age': 40 }
+* ];
+*
+* // wrap to create custom callback shorthands
+* _.createCallback = _.wrap(_.createCallback, function(func, callback, thisArg) {
+*   var match = /^(.+?)__([gl]t)(.+)$/.exec(callback);
+*   return !match ? func(callback, thisArg) : function(object) {
+*     return match[2] == 'gt' ? object[match[1]] > match[3] : object[match[1]] < match[3];
+*   };
+* });
+*
+* _.filter(characters, 'age__gt38');
+* // => [{ 'name': 'fred', 'age': 40 }]
+*/
+function createCallback(func, thisArg, argCount) {
+var type = typeof func;
+if (func == null || type == 'function') {
+return baseCreateCallback(func, thisArg, argCount);
+}
+// handle "_.pluck" style callback shorthands
+if (type != 'object') {
+return property(func);
+}
+var props = keys(func),
+key = props[0],
+a = func[key];
+// handle "_.where" style callback shorthands
+if (props.length == 1 && a === a && !isObject(a)) {
+// fast path the common case of providing an object with a single
+// property containing a primitive value
+return function(object) {
+var b = object[key];
+return a === b && (a !== 0 || (1 / a == 1 / b));
+};
+}
+return function(object) {
+var length = props.length,
+result = false;
+while (length--) {
+if (!(result = baseIsEqual(object[props[length]], func[props[length]], null, true))) {
+break;
+}
+}
+return result;
+};
+}
+/**
+* Converts the characters `&`, `<`, `>`, `"`, and `'` in `string` to their
+* corresponding HTML entities.
+*
+* @static
+* @memberOf _
+* @category Utilities
+* @param {string} string The string to escape.
+* @returns {string} Returns the escaped string.
+* @example
+*
+* _.escape('Fred, Wilma, & Pebbles');
+* // => 'Fred, Wilma, &amp; Pebbles'
+*/
+function escape(string) {
+return string == null ? '' : String(string).replace(reUnescapedHtml, escapeHtmlChar);
+}
+/**
+* This method returns the first argument provided to it.
+*
+* @static
+* @memberOf _
+* @category Utilities
+* @param {*} value Any value.
+* @returns {*} Returns `value`.
+* @example
+*
+* var object = { 'name': 'fred' };
+* _.identity(object) === object;
+* // => true
+*/
+function identity(value) {
+return value;
+}
+/**
+* Adds function properties of a source object to the destination object.
+* If `object` is a function methods will be added to its prototype as well.
+*
+* @static
+* @memberOf _
+* @category Utilities
+* @param {Function|Object} [object=lodash] object The destination object.
+* @param {Object} source The object of functions to add.
+* @param {Object} [options] The options object.
+* @param {boolean} [options.chain=true] Specify whether the functions added are chainable.
+* @example
+*
+* function capitalize(string) {
+*   return string.charAt(0).toUpperCase() + string.slice(1).toLowerCase();
+* }
+*
+* _.mixin({ 'capitalize': capitalize });
+* _.capitalize('fred');
+* // => 'Fred'
+*
+* _('fred').capitalize().value();
+* // => 'Fred'
+*
+* _.mixin({ 'capitalize': capitalize }, { 'chain': false });
+* _('fred').capitalize();
+* // => 'Fred'
+*/
+function mixin(object, source, options) {
+var chain = true,
+methodNames = source && functions(source);
+if (!source || (!options && !methodNames.length)) {
+if (options == null) {
+options = source;
+}
+ctor = lodashWrapper;
+source = object;
+object = lodash;
+methodNames = functions(source);
+}
+if (options === false) {
+chain = false;
+} else if (isObject(options) && 'chain' in options) {
+chain = options.chain;
+}
+var ctor = object,
+isFunc = isFunction(ctor);
+forEach(methodNames, function(methodName) {
+var func = object[methodName] = source[methodName];
+if (isFunc) {
+ctor.prototype[methodName] = function() {
+var chainAll = this.__chain__,
+value = this.__wrapped__,
+args = [value];
+push.apply(args, arguments);
+var result = func.apply(object, args);
+if (chain || chainAll) {
+if (value === result && isObject(result)) {
+return this;
+}
+result = new ctor(result);
+result.__chain__ = chainAll;
+}
+return result;
+};
+}
+});
+}
+/**
+* Reverts the '_' variable to its previous value and returns a reference to
+* the `lodash` function.
+*
+* @static
+* @memberOf _
+* @category Utilities
+* @returns {Function} Returns the `lodash` function.
+* @example
+*
+* var lodash = _.noConflict();
+*/
+function noConflict() {
+context._ = oldDash;
+return this;
+}
+/**
+* A no-operation function.
+*
+* @static
+* @memberOf _
+* @category Utilities
+* @example
+*
+* var object = { 'name': 'fred' };
+* _.noop(object) === undefined;
+* // => true
+*/
+function noop() {
+// no operation performed
+}
+/**
+* Gets the number of milliseconds that have elapsed since the Unix epoch
+* (1 January 1970 00:00:00 UTC).
+*
+* @static
+* @memberOf _
+* @category Utilities
+* @example
+*
+* var stamp = _.now();
+* _.defer(function() { console.log(_.now() - stamp); });
+* // => logs the number of milliseconds it took for the deferred function to be called
+*/
+var now = isNative(now = Date.now) && now || function() {
+return new Date().getTime();
+};
+/**
+* Converts the given value into an integer of the specified radix.
+* If `radix` is `undefined` or `0` a `radix` of `10` is used unless the
+* `value` is a hexadecimal, in which case a `radix` of `16` is used.
+*
+* Note: This method avoids differences in native ES3 and ES5 `parseInt`
+* implementations. See http://es5.github.io/#E.
+*
+* @static
+* @memberOf _
+* @category Utilities
+* @param {string} value The value to parse.
+* @param {number} [radix] The radix used to interpret the value to parse.
+* @returns {number} Returns the new integer value.
+* @example
+*
+* _.parseInt('08');
+* // => 8
+*/
+var parseInt = nativeParseInt(whitespace + '08') == 8 ? nativeParseInt : function(value, radix) {
+// Firefox < 21 and Opera < 15 follow the ES3 specified implementation of `parseInt`
+return nativeParseInt(isString(value) ? value.replace(reLeadingSpacesAndZeros, '') : value, radix || 0);
+};
+/**
+* Creates a "_.pluck" style function, which returns the `key` value of a
+* given object.
+*
+* @static
+* @memberOf _
+* @category Utilities
+* @param {string} key The name of the property to retrieve.
+* @returns {Function} Returns the new function.
+* @example
+*
+* var characters = [
+*   { 'name': 'fred',   'age': 40 },
+*   { 'name': 'barney', 'age': 36 }
+* ];
+*
+* var getName = _.property('name');
+*
+* _.map(characters, getName);
+* // => ['barney', 'fred']
+*
+* _.sortBy(characters, getName);
+* // => [{ 'name': 'barney', 'age': 36 }, { 'name': 'fred',   'age': 40 }]
+*/
+function property(key) {
+return function(object) {
+return object[key];
+};
+}
+/**
+* Produces a random number between `min` and `max` (inclusive). If only one
+* argument is provided a number between `0` and the given number will be
+* returned. If `floating` is truey or either `min` or `max` are floats a
+* floating-point number will be returned instead of an integer.
+*
+* @static
+* @memberOf _
+* @category Utilities
+* @param {number} [min=0] The minimum possible value.
+* @param {number} [max=1] The maximum possible value.
+* @param {boolean} [floating=false] Specify returning a floating-point number.
+* @returns {number} Returns a random number.
+* @example
+*
+* _.random(0, 5);
+* // => an integer between 0 and 5
+*
+* _.random(5);
+* // => also an integer between 0 and 5
+*
+* _.random(5, true);
+* // => a floating-point number between 0 and 5
+*
+* _.random(1.2, 5.2);
+* // => a floating-point number between 1.2 and 5.2
+*/
+function random(min, max, floating) {
+var noMin = min == null,
+noMax = max == null;
+if (floating == null) {
+if (typeof min == 'boolean' && noMax) {
+floating = min;
+min = 1;
+}
+else if (!noMax && typeof max == 'boolean') {
+floating = max;
+noMax = true;
+}
+}
+if (noMin && noMax) {
+max = 1;
+}
+min = +min || 0;
+if (noMax) {
+max = min;
+min = 0;
+} else {
+max = +max || 0;
+}
+if (floating || min % 1 || max % 1) {
+var rand = nativeRandom();
+return nativeMin(min + (rand * (max - min + parseFloat('1e-' + ((rand +'').length - 1)))), max);
+}
+return baseRandom(min, max);
+}
+/**
+* Resolves the value of property `key` on `object`. If `key` is a function
+* it will be invoked with the `this` binding of `object` and its result returned,
+* else the property value is returned. If `object` is falsey then `undefined`
+* is returned.
+*
+* @static
+* @memberOf _
+* @category Utilities
+* @param {Object} object The object to inspect.
+* @param {string} key The name of the property to resolve.
+* @returns {*} Returns the resolved value.
+* @example
+*
+* var object = {
+*   'cheese': 'crumpets',
+*   'stuff': function() {
+*     return 'nonsense';
+*   }
+* };
+*
+* _.result(object, 'cheese');
+* // => 'crumpets'
+*
+* _.result(object, 'stuff');
+* // => 'nonsense'
+*/
+function result(object, key) {
+if (object) {
+var value = object[key];
+return isFunction(value) ? object[key]() : value;
+}
+}
+/**
+* A micro-templating method that handles arbitrary delimiters, preserves
+* whitespace, and correctly escapes quotes within interpolated code.
+*
+* Note: In the development build, `_.template` utilizes sourceURLs for easier
+* debugging. See http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl
+*
+* For more information on precompiling templates see:
+* http://lodash.com/custom-builds
+*
+* For more information on Chrome extension sandboxes see:
+* http://developer.chrome.com/stable/extensions/sandboxingEval.html
+*
+* @static
+* @memberOf _
+* @category Utilities
+* @param {string} text The template text.
+* @param {Object} data The data object used to populate the text.
+* @param {Object} [options] The options object.
+* @param {RegExp} [options.escape] The "escape" delimiter.
+* @param {RegExp} [options.evaluate] The "evaluate" delimiter.
+* @param {Object} [options.imports] An object to import into the template as local variables.
+* @param {RegExp} [options.interpolate] The "interpolate" delimiter.
+* @param {string} [sourceURL] The sourceURL of the template's compiled source.
+* @param {string} [variable] The data object variable name.
+* @returns {Function|string} Returns a compiled function when no `data` object
+*  is given, else it returns the interpolated text.
+* @example
+*
+* // using the "interpolate" delimiter to create a compiled template
+* var compiled = _.template('hello <%= name %>');
+* compiled({ 'name': 'fred' });
+* // => 'hello fred'
+*
+* // using the "escape" delimiter to escape HTML in data property values
+* _.template('<b><%- value %></b>', { 'value': '<script>' });
+* // => '<b>&lt;script&gt;</b>'
+*
+* // using the "evaluate" delimiter to generate HTML
+* var list = '<% _.forEach(people, function(name) { %><li><%- name %></li><% }); %>';
+* _.template(list, { 'people': ['fred', 'barney'] });
+* // => '<li>fred</li><li>barney</li>'
+*
+* // using the ES6 delimiter as an alternative to the default "interpolate" delimiter
+* _.template('hello ${ name }', { 'name': 'pebbles' });
+* // => 'hello pebbles'
+*
+* // using the internal `print` function in "evaluate" delimiters
+* _.template('<% print("hello " + name); %>!', { 'name': 'barney' });
+* // => 'hello barney!'
+*
+* // using a custom template delimiters
+* _.templateSettings = {
+*   'interpolate': /{{([\s\S]+?)}}/g
+* };
+*
+* _.template('hello {{ name }}!', { 'name': 'mustache' });
+* // => 'hello mustache!'
+*
+* // using the `imports` option to import jQuery
+* var list = '<% jq.each(people, function(name) { %><li><%- name %></li><% }); %>';
+* _.template(list, { 'people': ['fred', 'barney'] }, { 'imports': { 'jq': jQuery } });
+* // => '<li>fred</li><li>barney</li>'
+*
+* // using the `sourceURL` option to specify a custom sourceURL for the template
+* var compiled = _.template('hello <%= name %>', null, { 'sourceURL': '/basic/greeting.jst' });
+* compiled(data);
+* // => find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector
+*
+* // using the `variable` option to ensure a with-statement isn't used in the compiled template
+* var compiled = _.template('hi <%= data.name %>!', null, { 'variable': 'data' });
+* compiled.source;
+* // => function(data) {
+*   var __t, __p = '', __e = _.escape;
+*   __p += 'hi ' + ((__t = ( data.name )) == null ? '' : __t) + '!';
+*   return __p;
+* }
+*
+* // using the `source` property to inline compiled templates for meaningful
+* // line numbers in error messages and a stack trace
+* fs.writeFileSync(path.join(cwd, 'jst.js'), '\
+*   var JST = {\
+*     "main": ' + _.template(mainText).source + '\
+*   };\
+* ');
+*/
+function template(text, data, options) {
+// based on John Resig's `tmpl` implementation
+// http://ejohn.org/blog/javascript-micro-templating/
+// and Laura Doktorova's doT.js
+// https://github.com/olado/doT
+var settings = lodash.templateSettings;
+text = String(text || '');
+// avoid missing dependencies when `iteratorTemplate` is not defined
+options = defaults({}, options, settings);
+var imports = defaults({}, options.imports, settings.imports),
+importsKeys = keys(imports),
+importsValues = values(imports);
+var isEvaluating,
+index = 0,
+interpolate = options.interpolate || reNoMatch,
+source = "__p += '";
+// compile the regexp to match each delimiter
+var reDelimiters = RegExp(
+(options.escape || reNoMatch).source + '|' +
+interpolate.source + '|' +
+(interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' +
+(options.evaluate || reNoMatch).source + '|$'
+, 'g');
+text.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {
+interpolateValue || (interpolateValue = esTemplateValue);
+// escape characters that cannot be included in string literals
+source += text.slice(index, offset).replace(reUnescapedString, escapeStringChar);
+// replace delimiters with snippets
+if (escapeValue) {
+source += "' +\n__e(" + escapeValue + ") +\n'";
+}
+if (evaluateValue) {
+isEvaluating = true;
+source += "';\n" + evaluateValue + ";\n__p += '";
+}
+if (interpolateValue) {
+source += "' +\n((__t = (" + interpolateValue + ")) == null ? '' : __t) +\n'";
+}
+index = offset + match.length;
+// the JS engine embedded in Adobe products requires returning the `match`
+// string in order to produce the correct `offset` value
+return match;
+});
+source += "';\n";
+// if `variable` is not specified, wrap a with-statement around the generated
+// code to add the data object to the top of the scope chain
+var variable = options.variable,
+hasVariable = variable;
+if (!hasVariable) {
+variable = 'obj';
+source = 'with (' + variable + ') {\n' + source + '\n}\n';
+}
+// cleanup code by stripping empty strings
+source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source)
+.replace(reEmptyStringMiddle, '$1')
+.replace(reEmptyStringTrailing, '$1;');
+// frame code as the function body
+source = 'function(' + variable + ') {\n' +
+(hasVariable ? '' : variable + ' || (' + variable + ' = {});\n') +
+"var __t, __p = '', __e = _.escape" +
+(isEvaluating
+? ', __j = Array.prototype.join;\n' +
+"function print() { __p += __j.call(arguments, '') }\n"
+: ';\n'
+) +
+source +
+'return __p\n}';
+// Use a sourceURL for easier debugging.
+// http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl
+var sourceURL = '\n/*\n//# sourceURL=' + (options.sourceURL || '/lodash/template/source[' + (templateCounter++) + ']') + '\n*/';
+try {
+var result = Function(importsKeys, 'return ' + source + sourceURL).apply(undefined, importsValues);
+} catch(e) {
+e.source = source;
+throw e;
+}
+if (data) {
+return result(data);
+}
+// provide the compiled function's source by its `toString` method, in
+// supported environments, or the `source` property as a convenience for
+// inlining compiled templates during the build process
+result.source = source;
+return result;
+}
+/**
+* Executes the callback `n` times, returning an array of the results
+* of each callback execution. The callback is bound to `thisArg` and invoked
+* with one argument; (index).
+*
+* @static
+* @memberOf _
+* @category Utilities
+* @param {number} n The number of times to execute the callback.
+* @param {Function} callback The function called per iteration.
+* @param {*} [thisArg] The `this` binding of `callback`.
+* @returns {Array} Returns an array of the results of each `callback` execution.
+* @example
+*
+* var diceRolls = _.times(3, _.partial(_.random, 1, 6));
+* // => [3, 6, 4]
+*
+* _.times(3, function(n) { mage.castSpell(n); });
+* // => calls `mage.castSpell(n)` three times, passing `n` of `0`, `1`, and `2` respectively
+*
+* _.times(3, function(n) { this.cast(n); }, mage);
+* // => also calls `mage.castSpell(n)` three times
+*/
+function times(n, callback, thisArg) {
+n = (n = +n) > -1 ? n : 0;
+var index = -1,
+result = Array(n);
+callback = baseCreateCallback(callback, thisArg, 1);
+while (++index < n) {
+result[index] = callback(index);
+}
+return result;
+}
+/**
+* The inverse of `_.escape` this method converts the HTML entities
+* `&amp;`, `&lt;`, `&gt;`, `&quot;`, and `&#39;` in `string` to their
+* corresponding characters.
+*
+* @static
+* @memberOf _
+* @category Utilities
+* @param {string} string The string to unescape.
+* @returns {string} Returns the unescaped string.
+* @example
+*
+* _.unescape('Fred, Barney &amp; Pebbles');
+* // => 'Fred, Barney & Pebbles'
+*/
+function unescape(string) {
+return string == null ? '' : String(string).replace(reEscapedHtml, unescapeHtmlChar);
+}
+/**
+* Generates a unique ID. If `prefix` is provided the ID will be appended to it.
+*
+* @static
+* @memberOf _
+* @category Utilities
+* @param {string} [prefix] The value to prefix the ID with.
+* @returns {string} Returns the unique ID.
+* @example
+*
+* _.uniqueId('contact_');
+* // => 'contact_104'
+*
+* _.uniqueId();
+* // => '105'
+*/
+function uniqueId(prefix) {
+var id = ++idCounter;
+return String(prefix == null ? '' : prefix) + id;
+}
+/*--------------------------------------------------------------------------*/
+/**
+* Creates a `lodash` object that wraps the given value with explicit
+* method chaining enabled.
+*
+* @static
+* @memberOf _
+* @category Chaining
+* @param {*} value The value to wrap.
+* @returns {Object} Returns the wrapper object.
+* @example
+*
+* var characters = [
+*   { 'name': 'barney',  'age': 36 },
+*   { 'name': 'fred',    'age': 40 },
+*   { 'name': 'pebbles', 'age': 1 }
+* ];
+*
+* var youngest = _.chain(characters)
+*     .sortBy('age')
+*     .map(function(chr) { return chr.name + ' is ' + chr.age; })
+*     .first()
+*     .value();
+* // => 'pebbles is 1'
+*/
+function chain(value) {
+value = new lodashWrapper(value);
+value.__chain__ = true;
+return value;
+}
+/**
+* Invokes `interceptor` with the `value` as the first argument and then
+* returns `value`. The purpose of this method is to "tap into" a method
+* chain in order to perform operations on intermediate results within
+* the chain.
+*
+* @static
+* @memberOf _
+* @category Chaining
+* @param {*} value The value to provide to `interceptor`.
+* @param {Function} interceptor The function to invoke.
+* @returns {*} Returns `value`.
+* @example
+*
+* _([1, 2, 3, 4])
+*  .tap(function(array) { array.pop(); })
+*  .reverse()
+*  .value();
+* // => [3, 2, 1]
+*/
+function tap(value, interceptor) {
+interceptor(value);
+return value;
+}
+/**
+* Enables explicit method chaining on the wrapper object.
+*
+* @name chain
+* @memberOf _
+* @category Chaining
+* @returns {*} Returns the wrapper object.
+* @example
+*
+* var characters = [
+*   { 'name': 'barney', 'age': 36 },
+*   { 'name': 'fred',   'age': 40 }
+* ];
+*
+* // without explicit chaining
+* _(characters).first();
+* // => { 'name': 'barney', 'age': 36 }
+*
+* // with explicit chaining
+* _(characters).chain()
+*   .first()
+*   .pick('age')
+*   .value();
+* // => { 'age': 36 }
+*/
+function wrapperChain() {
+this.__chain__ = true;
+return this;
+}
+/**
+* Produces the `toString` result of the wrapped value.
+*
+* @name toString
+* @memberOf _
+* @category Chaining
+* @returns {string} Returns the string result.
+* @example
+*
+* _([1, 2, 3]).toString();
+* // => '1,2,3'
+*/
+function wrapperToString() {
+return String(this.__wrapped__);
+}
+/**
+* Extracts the wrapped value.
+*
+* @name valueOf
+* @memberOf _
+* @alias value
+* @category Chaining
+* @returns {*} Returns the wrapped value.
+* @example
+*
+* _([1, 2, 3]).valueOf();
+* // => [1, 2, 3]
+*/
+function wrapperValueOf() {
+return this.__wrapped__;
+}
+/*--------------------------------------------------------------------------*/
+// add functions that return wrapped values when chaining
+lodash.after = after;
+lodash.assign = assign;
+lodash.at = at;
+lodash.bind = bind;
+lodash.bindAll = bindAll;
+lodash.bindKey = bindKey;
+lodash.chain = chain;
+lodash.compact = compact;
+lodash.compose = compose;
+lodash.constant = constant;
+lodash.countBy = countBy;
+lodash.create = create;
+lodash.createCallback = createCallback;
+lodash.curry = curry;
+lodash.debounce = debounce;
+lodash.defaults = defaults;
+lodash.defer = defer;
+lodash.delay = delay;
+lodash.difference = difference;
+lodash.filter = filter;
+lodash.flatten = flatten;
+lodash.forEach = forEach;
+lodash.forEachRight = forEachRight;
+lodash.forIn = forIn;
+lodash.forInRight = forInRight;
+lodash.forOwn = forOwn;
+lodash.forOwnRight = forOwnRight;
+lodash.functions = functions;
+lodash.groupBy = groupBy;
+lodash.indexBy = indexBy;
+lodash.initial = initial;
+lodash.intersection = intersection;
+lodash.invert = invert;
+lodash.invoke = invoke;
+lodash.keys = keys;
+lodash.map = map;
+lodash.mapValues = mapValues;
+lodash.max = max;
+lodash.memoize = memoize;
+lodash.merge = merge;
+lodash.min = min;
+lodash.omit = omit;
+lodash.once = once;
+lodash.pairs = pairs;
+lodash.partial = partial;
+lodash.partialRight = partialRight;
+lodash.pick = pick;
+lodash.pluck = pluck;
+lodash.property = property;
+lodash.pull = pull;
+lodash.range = range;
+lodash.reject = reject;
+lodash.remove = remove;
+lodash.rest = rest;
+lodash.shuffle = shuffle;
+lodash.sortBy = sortBy;
+lodash.tap = tap;
+lodash.throttle = throttle;
+lodash.times = times;
+lodash.toArray = toArray;
+lodash.transform = transform;
+lodash.union = union;
+lodash.uniq = uniq;
+lodash.values = values;
+lodash.where = where;
+lodash.without = without;
+lodash.wrap = wrap;
+lodash.xor = xor;
+lodash.zip = zip;
+lodash.zipObject = zipObject;
+// add aliases
+lodash.collect = map;
+lodash.drop = rest;
+lodash.each = forEach;
+lodash.eachRight = forEachRight;
+lodash.extend = assign;
+lodash.methods = functions;
+lodash.object = zipObject;
+lodash.select = filter;
+lodash.tail = rest;
+lodash.unique = uniq;
+lodash.unzip = zip;
+// add functions to `lodash.prototype`
+mixin(lodash);
+/*--------------------------------------------------------------------------*/
+// add functions that return unwrapped values when chaining
+lodash.clone = clone;
+lodash.cloneDeep = cloneDeep;
+lodash.contains = contains;
+lodash.escape = escape;
+lodash.every = every;
+lodash.find = find;
+lodash.findIndex = findIndex;
+lodash.findKey = findKey;
+lodash.findLast = findLast;
+lodash.findLastIndex = findLastIndex;
+lodash.findLastKey = findLastKey;
+lodash.has = has;
+lodash.identity = identity;
+lodash.indexOf = indexOf;
+lodash.isArguments = isArguments;
+lodash.isArray = isArray;
+lodash.isBoolean = isBoolean;
+lodash.isDate = isDate;
+lodash.isElement = isElement;
+lodash.isEmpty = isEmpty;
+lodash.isEqual = isEqual;
+lodash.isFinite = isFinite;
+lodash.isFunction = isFunction;
+lodash.isNaN = isNaN;
+lodash.isNull = isNull;
+lodash.isNumber = isNumber;
+lodash.isObject = isObject;
+lodash.isPlainObject = isPlainObject;
+lodash.isRegExp = isRegExp;
+lodash.isString = isString;
+lodash.isUndefined = isUndefined;
+lodash.lastIndexOf = lastIndexOf;
+lodash.mixin = mixin;
+lodash.noConflict = noConflict;
+lodash.noop = noop;
+lodash.now = now;
+lodash.parseInt = parseInt;
+lodash.random = random;
+lodash.reduce = reduce;
+lodash.reduceRight = reduceRight;
+lodash.result = result;
+lodash.runInContext = runInContext;
+lodash.size = size;
+lodash.some = some;
+lodash.sortedIndex = sortedIndex;
+lodash.template = template;
+lodash.unescape = unescape;
+lodash.uniqueId = uniqueId;
+// add aliases
+lodash.all = every;
+lodash.any = some;
+lodash.detect = find;
+lodash.findWhere = find;
+lodash.foldl = reduce;
+lodash.foldr = reduceRight;
+lodash.include = contains;
+lodash.inject = reduce;
+mixin(function() {
+var source = {}
+forOwn(lodash, function(func, methodName) {
+if (!lodash.prototype[methodName]) {
+source[methodName] = func;
+}
+});
+return source;
+}(), false);
+/*--------------------------------------------------------------------------*/
+// add functions capable of returning wrapped and unwrapped values when chaining
+lodash.first = first;
+lodash.last = last;
+lodash.sample = sample;
+// add aliases
+lodash.take = first;
+lodash.head = first;
+forOwn(lodash, function(func, methodName) {
+var callbackable = methodName !== 'sample';
+if (!lodash.prototype[methodName]) {
+lodash.prototype[methodName]= function(n, guard) {
+var chainAll = this.__chain__,
+result = func(this.__wrapped__, n, guard);
+return !chainAll && (n == null || (guard && !(callbackable && typeof n == 'function')))
+? result
+: new lodashWrapper(result, chainAll);
+};
+}
+});
+/*--------------------------------------------------------------------------*/
+/**
+* The semantic version number.
+*
+* @static
+* @memberOf _
+* @type string
+*/
+lodash.VERSION = '2.4.1';
+// add "Chaining" functions to the wrapper
+lodash.prototype.chain = wrapperChain;
+lodash.prototype.toString = wrapperToString;
+lodash.prototype.value = wrapperValueOf;
+lodash.prototype.valueOf = wrapperValueOf;
+// add `Array` functions that return unwrapped values
+baseEach(['join', 'pop', 'shift'], function(methodName) {
+var func = arrayRef[methodName];
+lodash.prototype[methodName] = function() {
+var chainAll = this.__chain__,
+result = func.apply(this.__wrapped__, arguments);
+return chainAll
+? new lodashWrapper(result, chainAll)
+: result;
+};
+});
+// add `Array` functions that return the existing wrapped value
+baseEach(['push', 'reverse', 'sort', 'unshift'], function(methodName) {
+var func = arrayRef[methodName];
+lodash.prototype[methodName] = function() {
+func.apply(this.__wrapped__, arguments);
+return this;
+};
+});
+// add `Array` functions that return new wrapped values
+baseEach(['concat', 'slice', 'splice'], function(methodName) {
+var func = arrayRef[methodName];
+lodash.prototype[methodName] = function() {
+return new lodashWrapper(func.apply(this.__wrapped__, arguments), this.__chain__);
+};
+});
+// avoid array-like object bugs with `Array#shift` and `Array#splice`
+// in IE < 9, Firefox < 10, Narwhal, and RingoJS
+if (!support.spliceObjects) {
+baseEach(['pop', 'shift', 'splice'], function(methodName) {
+var func = arrayRef[methodName],
+isSplice = methodName == 'splice';
+lodash.prototype[methodName] = function() {
+var chainAll = this.__chain__,
+value = this.__wrapped__,
+result = func.apply(value, arguments);
+if (value.length === 0) {
+delete value[0];
+}
+return (chainAll || isSplice)
+? new lodashWrapper(result, chainAll)
+: result;
+};
+});
+}
+return lodash;
+}
+/*--------------------------------------------------------------------------*/
+// expose Lo-Dash
+var _ = runInContext();
+// some AMD build optimizers like r.js check for condition patterns like the following:
+if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
+// Expose Lo-Dash to the global object even when an AMD loader is present in
+// case Lo-Dash is loaded with a RequireJS shim config.
+// See http://requirejs.org/docs/api.html#config-shim
+root._ = _;
+// define as an anonymous module so, through path mapping, it can be
+// referenced as the "underscore" module
+define(function() {
+return _;
+});
+}
+// check for `exports` after `define` in case a build optimizer adds an `exports` object
+else if (freeExports && freeModule) {
+// in Node.js or RingoJS
+if (moduleExports) {
+(freeModule.exports = _)._ = _;
+}
+// in Narwhal or Rhino -require
+else {
+freeExports._ = _;
+}
+}
+else {
+// in a browser or Rhino
+root._ = _;
+}
+}.call(this));

renkan