drop
创建一个切片数组, 去除
array前面的n个元素drop.test.ts
import { drop } from "../../utility/array/drop";
describe('drop tests', () => {
test('drop should return an empty array when receive an empty array', () => {
const received: number[] = [];
const expected = [];
const result = drop<number>(received);
expect(result.length).toBe(expected.length);
});
test('drop should return the droped array by using customized number when receive an array being composed of number', () => {
const received: number[] = [1, 2, 3, 4, 5, 6];
const expected: number[] = [4, 5, 6];
const result = drop<number>(received, 3);
result.forEach((v, i) => {
expect(v).toBe(expected[i]);
});
});
test('drop should not change the origin array', () => {
const received: number[] = [100, 300, 500];
const expected: number[] = [100, 300, 500];
const result = drop<number>(received, 0);
result.push(700, 900);
expect(result.length).toBe(5);
received.forEach((v, i) => {
expect(v).toBe(expected[i]);
});
});
});
最近更新 2yr ago