Just when I think I finally understand Javascript scope

Question

I run in to something that illustrates how I clearly don\'t get it yet.

Can anyone please explain why the value of \"this\" changes in the following?

Answer 1

Just do the following:

var MyFunc = function(){
    var self = this;
    alert(self);
    var innerFunc = function(){
        alert(self);
    }
    innerFunc();
};

new MyFunc();

This way self will always mean this, irrespective of where you're calling it from, which is usually what you want.