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28 lines
673 B
28 lines
673 B
var isArray = require('./isArray')
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/**
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* 将一个数组分割成大小的组。如果数组不能被平均分配，那么最后一块将是剩下的元素
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*
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* @param {Array} array 数组
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* @param {Number} size 每组大小
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* @return {Array}
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*/
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function chunk (array, size) {
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var index
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var result = []
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var arrLen = size >> 0 || 1
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if (isArray(array)) {
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if (arrLen >= 0 && array.length > arrLen) {
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index = 0
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while (index < array.length) {
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result.push(array.slice(index, index + arrLen))
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index += arrLen
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}
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} else {
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result = array.length ? [array] : array
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}
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}
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return result
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}
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module.exports = chunk
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