有没有其他方法可以访问已被隐藏或重新定义的 JavaScript 全局变量？

Question

For some unknown reason the name URL in my event handler points to a string value with the current URL of the browser instead of the constructor for an URL object. Trying to call it results in the following error:

Uncaught TypeError: URL is not a constructor

The string URL does not appear anywhere in the loaded document which leads me to believe that it is not redefined anywhere in my program. I have not been able to find anything other that would explain why this phenomena occurs.

So my question for a workaround is: Is it possible to access these global constructors in any other way?

Answer 1

是的，通过名称window ，只要它也没有被遮蔽或重新定义：

let a = new window.URL(location);