How to extend Array.prototype.push()?

Question

I\'m trying to extend the Array.push method so that using push will trigger a callback method, then perform the normal array function.

I\'m not quite sure how to do

Answer 1

Array.prototype.push was introduced in JavaScript 1.2. It is really as simple as this:

Array.prototype.push = function() {
    for( var i = 0, l = arguments.length; i < l; i++ ) this[this.length] = arguments[i];
    return this.length;
};

You could always add something in the front of that.