_call
模拟实现
call方法_call.test.ts
import { _call } from "../../utility/function/_call";
export type FunctionKeyType = keyof typeof Function;
describe('_call', () => {
test('_call should change the `this` when processing', () => {
const origin = {
name: 'ddzy',
};
const expected = {
name: 'ddzy',
arg0: 0,
arg1: 1,
};
const received = {
printName(...args: any[]) {
const name = this['name' as keyof typeof received];
const arg0 = args[0];
const arg1 = args[1];
expect({ name, arg0, arg1 }).toEqual(expected);
},
};
Function.prototype['_call' as FunctionKeyType] = _call;
received.printName['_call' as FunctionKeyType](origin, 0, 1);
});
});
最近更新 3yr ago