[eluser]beemr[/eluser]
[quote author="Edemilson Lima" date="1201227316"]I would like to make some questions...
1) Which of the JS frameworks is the most compatible with all browsers, in all operational systems?
Full compatibility trickles down to all of them. Which is most likely the leader might be a better question. I think jquery has shown its merits here. For example, it was the first to come up with DOM loaded event that worked on all, even Safari.
2) Which of them downgrade nicely if the user have disabled Javascript?
JQuery is unobtrusive at its core, most others added unobtrusive capabilities to follow suit. Proto-taculous as seen in RoR, for instance, is completely embedded within the HTML, not so great for degradation.
3) Which of them loads and runs faster even in old and slow computers?
There are a number of tests for this (I can recall only slickspeed), but speed has improved not only in libraries, but in browsers and computers, so I wouldn't be too concerned if you're not building maps.google.com. Scriptaculous usually has the smoothest effects. Moo might be second. JQuery third this time (as of 1.1.4).
4) Which is more customizable and let us to enable only what we want? Which able us to use only the basic AJAX functionality or only the effects we really need?
Moo has a great package system so you can grab a custom library. YUI is loosely coupled from the start. Jquery can be separated but realistically, at 20k, it's all or nothing. Scriptaculous needs Prototype, so its the hefty boy of the lot.
5) Which of them simplify the task on the server side, instead of force us to build the remote PHP scripts more complicated? Which standards/protocols they use: JSON, XML, DOM, etc?
I'm sure these are available for all. Jquery definitely. One of my favorite jquery plugins is one that uses JSON to create DOM. Very elegant, I think.
6) Which have clean code and intuitive use of classes and functions, and also a very good and complete documentation?
I believe Moo is based on Dean Edwards' class implementations which are regarded as the best. Prototype offers class structure in a riskier manner as it rewrites the base object.
7) Which is more compatible with the W3C Standards and do not use deprecated things?
None, since they all support IE6
8) Which have the major list of effects, but also useful things like form generation and validation, field mask/format, calendar popup, color picker popup, HTML editor, etc?
ExtJS is an interface library that works with the YUI or jQuery.
9) Which have the best team behind it and the best community? Which have the best support?
jQuery has long been praised for its community and docs. I think they're very comparable to CI's own. YUI has tons of docs and videos, but I've never found the time to sift through them.
10) Which is the most used by web sites around the world? Which is the most known by developers?
GoogleCode, Digg, Technorati, Wordpress(latest) use jQuery.
Well, if you don't know the answers to all of these questions, just answers the questions you can, ok?[/quote]
Ajaxian.com is a great resource for more info. Happy foraging!
