Utility
zip
说明
创建一个分组元素的数组, 数组的第一个元素包含所有给定数组的第一个元素, 数组的第二个元素包含所有给定数组的第二个元素, 以此类推. 打包后的数组的长度等于源二维数组的最大长度的项
源码
用法
zip.test.ts
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import { zip } from "../../utility/array/zip";
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describe('Method zip tests...', () => {
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test('zip should return the zipped array correctly when receive an array composed of number', () => {
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const received = [
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[1, 2, 3],
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[4, 5, 6],
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[7, 8, 9, 10, 11],
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];
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const expected = [
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[1, 4, 7],
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[2, 5, 8],
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[3, 6, 9],
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[10],
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[11]
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];
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const result = zip<number>(...received);
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expect(result.length).toBe(expected.length);
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result.forEach((outerV, outerI) => {
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outerV.forEach((innerV, innerI) => {
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expect(innerV).toBe(expected[outerI][innerI]);
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});
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});
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});
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test('zip should return the zipped array correctly when receive an mixed array', () => {
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const arr1: any[] = [];
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const obj1 = {
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name: 'duanzhaoyang',
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age: 21,
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}
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const func1 = function () { };
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const received = [
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[998, 899, 989, 898],
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[false, true],
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[arr1, obj1],
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[func1]
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];
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const expected = [
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[998, false, arr1, func1],
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[899, true, obj1],
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[989],
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[898],
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];
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const result = zip<any>(...received);
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expect(result.length).toBe(expected.length);
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result.forEach((outerV, outerI) => {
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outerV.forEach((innerV, innerI) => {
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expect(innerV).toBe(expected[outerI][innerI]);
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});
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});
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});
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});
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