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@StuPig
Created March 6, 2014 02:41
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shufle js洗牌算法
// more on: http://jsperf.com/js-shuffle-test/2
/**
* 数组洗牌算法
* @param arr
*/
function shuffle(arr) {
var s = [];
while (arr.length) s.push(arr.splice(Math.random() * arr.length, 1)[0]);
arr = arr.concat(s);
}
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