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