I got a new machine at work yesterday and in the process of building the thing out and getting it ready to actually work with, I came up with a list of the tools and utilities I use on a regular basis. Not the big stuff (Dreamweaver, Fireworks, Photoshop, etc.) The stuff that fills in the cracks that the big tools don’t cover. Thinking such a list might be useful for other folks, I added a couple of online services that I can’t live without and am now sharing the highlights of the list with the world.

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I saw it yesterday in some code I was debugging and I realized I’ve become hyper sensitive to this common pattern:

var anchors = document.getElementsByTagName('a');
if (anchors.length > 0){
    for (var i=0; i < anchors.length; i++) {
        addEvent( anchors[i], 'click',  trackLinks );
    };
};

Why am I sensitive to it? Well, what are some of the things we know about JavaScript performance?
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