Ext JS or JSF
Many of the projects which invloves UI are now are moving to Ext JS / Angular JS (JavaScript) based frameworks.
So far i have used extensively JSF 1.2 / JSF 2.0 along with Richfaces/PrimeFaces.
But ExtJS looks lightweight. Can some one please help me out to figure out what speciality does JSF provide especially performance wise when you compare ExtJs and JSF
As far i know :
1) JSF is a bit slow in performanceespecially in rendering its components, since every event results in a server call. Apart from this JSF is very easy to use, fast development and easy to understand and integrate with other frameworks as it majorly a view layer framework of MVC
2) With Ext JS its a complete script based.
Please help me out to compare both of this and let me know on how to decide when selecting the framework.