JavaScript - 获取调用对象 [英] JavaScript - Get calling object

问题描述

可能重复：

Javascript如何找到来电者功能？

大家好！

有没有办法从函数中获取这个的值已经调用了当前的功能？
看看这个：

Is there a way to get the value of this from the function which has called the current function? Look at this:

function TraceMySelf(){
    console.log(this);
}
function A(){
    TraceMySelf();
    console.log(this);
}

var a = new A();

执行此代码时，控制台首先显示窗口 object，然后是 a 对象。如何使代码显示 a 对象两次，只更改第2行？我知道我可以在 A 中使用这个来应用函数，但这不是我想要的。

When this code is executed, the console displays first the window object and then the a object. How can I make the code display the a object twice, with only changing line 2? I know that I could apply the function inside A with this, but that isn't what I want.

这可能吗？

感谢您的帮助！

推荐答案

我认为这是你问题的答案： StackOverflow 280389

I think this is the answer to your question: StackOverflow 280389

但是，我认为正确的答案是不要这样做。我认为这与JavaScript的设计方式背道而驰。

However, I think the right answer is "don't do that". I think it runs counter to how JavaScript is designed.

也许值得一看 jQuery Proxy ，用于链接函数和对象的另一种方式。

It might also be worth looking at jQuery Proxy for another way of linking function and object.

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