Joey Nelson Blog Fiasco

If you deal with the same handfull of elements over and over again on the same page, doing those $('.class_name') selections can put a lot of load on the browser (especially IE). Here’s an easy way to cache those objects without doing any extra work:

var el_cache = {};
 
function e(a){
	if(el_cache[a] != undefined) return el_cache[a];
	el_cache[a] = $(a);
	return el_cache[a];
}

Then you would just change your jQuery calls from this:

$('.class')

to this:

e('.class')

Obviously there are more jQueryish ways of doing this but come on, you can’t beat that simplicity.