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修改一点儿代码
proxy.foo = proxy // true 改为 proxy.foo === proxy // true
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@ -386,7 +386,7 @@ const handler = {
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};
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const proxy = new Proxy({}, handler);
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proxy.foo = 'bar';
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proxy.foo = proxy // true
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proxy.foo === proxy // true
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```
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上面代码中,`set`方法的第四个参数`receiver`,总是返回`this`关键字所指向的那个对象,即`proxy`实例本身。
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