Requesting holivar on JavaScript framework?

Question

JavaScript

Task: We are
going to write a fairly large web application. Its essence is similar to CMS, but not for the site, but simply “put everything into the base.”
There are about 15 heterogeneous elements in the system, editing some takes obviously more than a few screens
. It is required to create fairly non-standard widgets.
I 'm considering the following options so far:
- ExtJS
- dojo toolkit
- Yahoo UI
- self-written jQuery widgets on top of Backbone.js or something like that I
'm interested in the experience and impressions of those who actually used the designated libraries in the development of truly non-trivial systems. Well, or maybe someone will throw a sensible link at me.

Answer 1

tried extjs, dojo and backbone + jquery
the first two are very different from the last one in purpose.
They are not intended for creating sites in the usual way, but for creating windowed applications in the browser. Frameworks for creating a thick client system. At the same time, I constantly had problems with dojo.
The problem that I remember the most is the strange set of storage. There are repositories that hold data in the client, downloading once, and there are several that request data from the server. Of those that work on demand, one store was read-only, and the second required REST on the web server side
In the last project I use backbone - a convenient and flexible thing. It is enough to create one-page sites, but there are no interface widgets, how the site will look is completely up to you.
In any case, the price for all this luxury is a huge amount of js code.

Answer 2

In general, extJS is a great framework, but it's expensive. I would choose backbone.js if the widgets are non-standard or try qooxdoo

Answer 3

I would recommend using closure-library if you need to do something like RIA. I also heard very good reviews about the backbone.

Answer 4

GWT

Answer 5

Self-written widgets without jQuery (better than jQuery)