ut2/es/unzip.js

一个现代 JavaScript 实用工具库。[点击查看在线文档]。

import { mathMax } from './internals/native.js';
import isArray from './isArray.js';
import isArrayLikeObject from './isArrayLikeObject.js';

function unzip(array) {
    if (!isArray(array) || array.length === 0) {
        return [];
    }
    var length = 0;
    array = array.filter(function (group) {
        if (isArrayLikeObject(group)) {
            length = mathMax(group.length, length);
            return true;
        }
        return false;
    });
    var result = Array(length);
    var index = -1;
    while (++index < length) {
        var item = array.map(function (group) { return group[index]; });
        result[index] = item;
    }
    return result;
}

export { unzip as default };