Dojo, prototype and jquery

Question

I have been programming in PHP for a while, and id wanted to start learning how to create more dynamic websites using AJAX.

Question: where to start? Heres "what I am considering:

• prototype + script.aculo.us
• dojo (with / without Zend Framework)
• JQuery

Which book should I buy? Are these different libraries or the same thing? Also, which IDE should I use? (I'm on OSX). Aptana? Komodo? I am currently using Zend Studio, is there still a WYSIWYGish editor?

Thanks!

Answer 1

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Answer 2

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• Javascript (jQuery vs Dojo vs...)?
• ? jQuery, MooTools, YUI, script.aculo.us Prototype?
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Answer 3

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I love object-oriented syntax just like any syntax, but modifying core objects is simply unsafe. $ is evil. :-)

So, for my money, YUI is the only really safe library. jQuery will be my second choice.