JavaScript - 获取调用对象
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JavaScript - Get calling object
提问by Van Coding
Possible Duplicate:
Javascript how do you find the caller function?
可能的重复：
Javascript 如何找到调用函数？
Hi guys!
嗨，大家好！
Is there a way to get the value of thisfrom the function which has called the current function?
Look at this:
有没有办法this从调用当前函数的函数中获取 的值？看这个：
function TraceMySelf(){
console.log(this);
}
function A(){
TraceMySelf();
console.log(this);
}
var a = new A();
When this code is executed, the console displays first the windowobject and then the aobject. How can I make the code display the aobject twice, with only changing line 2? I know that I could apply the function inside Awith this, but that isn't what I want.
执行此代码时，控制台首先显示window对象，然后显示a对象。如何让代码显示a对象两次，只更改第 2 行？我知道我可以在里面应用Awith函数this，但这不是我想要的。
Is this possible?
这可能吗？
Thanks for your help!
谢谢你的帮助！
回答by JoshRivers
I think this is the answer to your question: StackOverflow 280389
我认为这是您问题的答案：StackOverflow 280389
However, I think the right answer is "don't do that". I think it runs counter to how JavaScript is designed.
但是，我认为正确的答案是“不要那样做”。我认为这与 JavaScript 的设计方式背道而驰。
It might also be worth looking at jQuery Proxyfor another way of linking function and object.
也可能值得查看jQuery Proxy以获取链接函数和对象的另一种方式。
