25 lines
490 B
Java
25 lines
490 B
Java
var random = require('../number/random')
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var values = require('../base/values')
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/**
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* 将一个数组随机打乱，返回一个新的数组
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*
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* @param {Array} array 数组
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* @return {Array}
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*/
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function shuffle (array) {
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var index
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var result = []
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var list = values(array)
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var len = list.length - 1
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for (; len >= 0; len--) {
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index = len > 0 ? random(0, len) : 0
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result.push(list[index])
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list.splice(index, 1)
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}
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return result
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}
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module.exports = shuffle
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