Advanced jQuery to improve Web Apps (engl.)

Thanks. I want to thank everyone for having me here today. I really appreciate it. I wanted to talk about a couple of things today, mostly around jQuery itself, but hopefully generic enough that in case you’re not using jQuery at least it will still be applicable to your web apps. There are a couple of techniques I want to look at that hopefully all of you encounter when developing web applications. You always want to improve the performance of your JavaScript code. You always want to improve the accessibility, and you want to make your code simpler. Finally, you want to make the design process much easier. When it comes to performance, there are a number of things in JavaScript, three of which are fairly easy, but especially so in jQuery. One is event delegation. Event delegation is a technique that routes around the traditional method of binding events. What I mean by that is typically when you attach a click handler to an element, you’re attaching a click to every single element that you want to attach to. This can be really costly. If you have a table with a couple of thousand table cells in it, that is going to be a lot of click handlers to attach.

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