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toolkit/javascript/d3/src/core/range.js
author Nicolas Sauret <nicolas.sauret@iri.centrepompidou.fr>
Fri, 18 Apr 2014 14:31:58 +0200
changeset 51 79833eaa394a
parent 47 c0b4a8b5a012
permissions -rw-r--r--
set up second level for navigation
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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/**
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 * @param {number} start
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 * @param {number=} stop
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 * @param {number=} step
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 */
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d3.range = function(start, stop, step) {
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  if (arguments.length < 3) {
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    step = 1;
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    if (arguments.length < 2) {
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      stop = start;
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      start = 0;
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    }
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  }
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  if ((stop - start) / step == Infinity) throw new Error("infinite range");
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  var range = [],
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       i = -1,
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       j;
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  if (step < 0) while ((j = start + step * ++i) > stop) range.push(j);
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  else while ((j = start + step * ++i) < stop) range.push(j);
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  return range;
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};
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