Evented Programming With jQuery

http://yehudakatz.com/2009/04/20/evented-programming-with-jquery/

by _pius • 17 years ago

31 8 17 years ago

allertonm2• 17 years ago

While there is some good stuff here, my first reaction to the idea of "evented programming" as described here is that Katz has simply replaced a perfectly good language-level mechanism for OO-inheritance (the prototype chain) with a library-level mechanism - using jQuery event triggers to implement a kind of AOP-style "before advice" - that makes the code both harder to read and to debug.

Can you imagine using Firebug to step through the chain from the first click event to the "base" implementation of "activate" in this example, through all of the jQuery event triggering going on? Nasty.

Am I missing something here?

njm2• 17 years ago

It seems to me (an avid jQuery user, no less) that people are stretching the paradigm too far. There are places where traditional, class-like abstractions are perfectly legitimate, and indeed more natural. Some of the more elaborate applications of jQuery, such as jQuery UI, come across as smelly to me -- sometimes plain old classes and objects are nice.

nakajima2• 17 years ago

Traditional object oriented programming is certainly easily at first, especially to those with a strong background in it. Unfortunately, in every app I've ever worked on, there's a dissonance between OOP and the browser environment that causes things to break down, at which point it becomes incredibly difficult to salvage without a re-write.

After working on some really complex JavaScript applications, my opinion is that the approach Yehuda's advocating in this post is enormously helpful when applications start getting complex, both in terms of the DOM as well as the behaviors that apply to them.

tlrobinson• 17 years ago

Did the Ruby community just invent the term "evented"? I've never seen it used elsewhere until recently.

peregrine• 17 years ago

This is what happens when Microsoft picks you up and says here this is how we do it.

Evented Programming With jQuery

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