javascript anonymous function parameter passing

Question

I have some javascript code (within an object) :

toggle: function() {
    var me = this;
    var handler = function() { me.progress() };
    me.intervalId = setI         


        

Answer 1

What you have there is a closure. The function that is created and assigned to handler keeps a reference to the me object. This is normal, everyday JavaScript, and that's the way that closures work generally.