_concat
将给定的任意数量的值追加至源数组
_concat.test.ts
import { _concat } from "../../utility/array/_concat";
describe('_concat', () => {
test('_concat should return an new array being composed of number', () => {
const received = [1, 2, 3, 4, 5];
const expected = [1, 2, 3, 4, 5, 6, 7, 8];
const result = _concat<number>(received, 6, 7, 8);
for (const [i, v] of result.entries()) {
expect(v).toBe(expected[i]);
}
// Should not change the origin array
expect(received.length).toBe(5);
});
test('_concat should return an new array being composed of any value', () => {
const received: any[] = [1, 0, '', undefined, null, [[100]], { name: 'ddzy' }];
const expected = 10;
const result = _concat<any>(received, [[200], [300]], { age: 21 });
expect(result.length).toBe(expected);
});
});
最近更新 2yr ago