Non-Destructive jQuery

Non-Destructive jQuery

Hi Everyone -
There's been some rabble-rousing concerning the destructive nature of
jQuery (it's ok, rousing is a good thing ;-)). I claimed that it'd be
easy to have it exist as a plugin. Well, it took me all of 10 minutes,
but here it is:
jQuery.fn._pushStack = jQuery.fn.pushStack;
        
jQuery.fn.pushStack = function(){
var ret = jQuery.fn._pushStack.apply( jQuery(this), arguments );
ret.prevObject = this;
return ret;
};
        
jQuery.fn.end = function(){
return this.prevObject || jQuery([]);
};
You can see a demo (requires Firebug) here:
http://john.jquery.com/jquery/test/destruct.html
So, if the destructive nature of jQuery bothers you - and you can't
wait for jQuery 2.0, then just stick the above code in the header of
your site (after jQuery) and you'll be good to go. Enjoy!
--John