fill
使用
value 值来填充 （替换） array. 从 start 位置开始, 到 end 位置结束(但不包含 end 位置).fill.test.ts
import { fill } from "../../utility/array/fill";
describe('fill tests...', () => {
test('method fill should return an empty array when receive an empty array', () => {
const received: number[] = [];
const expected = 0;
const result = fill<number>(received, 100);
expect(result.length).toBe(expected);
});
test('method fill should return the correct array when receive an array composed of number', () => {
const received: number[] = [1, 2, 3, 4, 5];
const expected = [1, 2, 200, 200, 200, 200, 200, 200];
const result = fill<number>(received, 200, 2);
result.forEach((v, i) => {
expect(v).toBe(expected[i]);
});
});
test('method fill will modify the origin array', () => {
const received: any[] = [false, 0, '', NaN, true, function () { }];
const expected = received;
const result = fill(received, 'duanzhaoyang');
expect(result).toBe(expected);
expect(result).toBe(received);
});
});
最近更新 2yr ago