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