Window. location rewriting and determination of location rewriting _ javascript tips-js tutorial

This article mainly introduces window. to overwrite location and determine whether location is overwritten, you can refer to window in IE. lcoation can be rewritten without re-targeting. The specific method is var location = {}, and then the specific attribute can be rewritten, which brings a certain risk to determine location through js.
How can I determine if location is overwritten? After one afternoon, I tried one of the following methods:

(Location = document. location & location instanceof Location)

This method is only used for IE.