Why can't I extend localStorage on IE8 (javascript)?

Question

I\'d like to add 2 methods to localStorage. My goal is to end up with something like this:

localStorage.setObject(key, object);
localStorage.getObject(key);         


        

Answer 1

This is IE. You also can't extend DOM elements. If you sometimes really-really need to call a function, you can do it via Storage.prototype.getObject.call(localStorage, 'hello').

Also extending built-in objects is not considered as good thing.