zip
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
zip.test.ts
import { zip } from "../../utility/array/zip";
describe('Method zip tests...', () => {
test('zip should return the zipped array correctly when receive an array composed of number', () => {
const received = [
[1, 2, 3],
[4, 5, 6],
[7, 8, 9, 10, 11],
];
const expected = [
[1, 4, 7],
[2, 5, 8],
[3, 6, 9],
[10],
[11]
];
const result = zip<number>(...received);
expect(result.length).toBe(expected.length);
result.forEach((outerV, outerI) => {
outerV.forEach((innerV, innerI) => {
expect(innerV).toBe(expected[outerI][innerI]);
});
});
});
test('zip should return the zipped array correctly when receive an mixed array', () => {
const arr1: any[] = [];
const obj1 = {
name: 'duanzhaoyang',
age: 21,
}
const func1 = function () { };
const received = [
[998, 899, 989, 898],
[false, true],
[arr1, obj1],
[func1]
];
const expected = [
[998, false, arr1, func1],
[899, true, obj1],
[989],
[898],
];
const result = zip<any>(...received);
expect(result.length).toBe(expected.length);
result.forEach((outerV, outerI) => {
outerV.forEach((innerV, innerI) => {
expect(innerV).toBe(expected[outerI][innerI]);
});
});
});
});