Disable a built-in function in javascript (alert)

Question

Simple: I want to disable/overwrite alert().

Can I do this?

More importantly, is it right to do this?

What about strict mode?

Answer 1

Yes, you can disable or overwrite alert(). No, it's not right to do it, except in some bizarre and limited situations.

Disable:

window.alert = function() { }; 

Override:

window.alert = function(text) { /* do something */ };