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, it's your choice. You could also store the original 'alert':

window.nativeAlert = window.alert;
window.alert = function(val){console.log(val+' (alert disabled)');};

now the old alert is still usable: nativeAlert('something');