22 lines
413 B
Java
22 lines
413 B
Java
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var shuffle = require('./shuffle')
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/**
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* 从一个数组中随机返回几个元素
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*
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* @param {Array} array 数组
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* @param {Number} number 个数
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* @return {Array}
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*/
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function sample (array, number) {
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var result = shuffle(array)
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if (arguments.length <= 1) {
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return result[0]
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}
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if (number < result.length) {
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result.length = number || 0
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}
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return result
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}
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module.exports = sample
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