Wait, what? Well first, duck punching is another name for monkey patching. Monkey Patching is a technique to “extend or modify the runtime code of dynamic languages without altering the original source code.” But then some Ruby hackers decided that since we rely on duck typing so often, a more proper name was in order:

… if it walks like a duck and talks like a duck, it’s a duck, right? So if this duck is not giving you the noise that you want, you’ve got to just punch that duck until it returns what you expect.^[1]

In jQuery we can use this to great effect. We’ll employ an AOP-like approach (aspect-oriented programming), maintaining the original function but wrapping it with our enhancement.

Example 1: Adding color support

(This is a silly example, but hopefully it explains the idea. ) You’re fully aware that you can use certain color names in HTML. But sadly, everyone’s favorite Crayola™ color, Burnt Sienna, can’t play along. Well, not until now…

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(function($){

    var _oldcss = $.fn.css;

    $.fn.css = function(prop,value){

        if (/^background-?color$/i.test(prop) &&