26 lines
517 B
JavaScript
26 lines
517 B
JavaScript
var pluck = require('./pluck')
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var max = require('./max')
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/**
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* 与 zip 相反
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*
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* @param {Array} arrays 数组集合
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*/
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function unzip (arrays) {
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var index, maxItem, len
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var result = []
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if (arrays && arrays.length) {
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index = 0
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maxItem = max(arrays, function (item) {
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return item ? item.length : 0
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})
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for (len = maxItem ? maxItem.length : 0; index < len; index++) {
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result.push(pluck(arrays, index))
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}
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}
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return result
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}
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module.exports = unzip
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