Is there any way that I can replace the insertBefore and similar with my own functions. My aim is to implement an undo feature and if I’m able to implement it this way, I wont have to change each instance of insertBefore in my code with my function name and it would also make the further development easier.
I’ve found something similar here Disable a built-in function in javascript (alert) but am not able to figure out how to use it in my case because I dont know who is the parent of these functions (insertBefore,appendChild etc).
I just want to insert one line of my code and then call the native code.
Please advise
PS. I’m trying to implement an undo functionality and this library requires me to register an undo in that undo-function for allowing redo. So all I want to do is make that a single line of code is always executed before any insertBefore and similar functions.
I’m not talking about any libraries, but just the plain ECMAscript.
If you are talking about the insertBefore method of the Node interface, then whether you can or can’t do is really moot. The important thing is that you shouldn’t. It is a method of a host object and should be left alone.
Incidentally, the term built-in is normally used for the built-in objects and methods of ECMAScript. The window.alert method is more correctly described as a method of a host object and really shouldn’t be tampered with either (although in general it can be).