Actually in my experience ExtJs is one of the best libraries/frameworks* [1]. It has a steep learning curve* [2] but after that you can build awesome applicatio

Actually in my experience ExtJs is one of the best libraries/frameworks* [1]. It has a steep learning curve* [2] but after that you can build awesome applications quite fast. * [1] : library based on the author's definition and framework based on sencha's documentation. * [2] : the learning curve is steep even for experienced javascript developers. edit: I just had to fight the * * *