i have 50k lines of Ext 3 and I agree with his comment, fwiw. We've completely abandoned it for a polymer-like approach. Ext 3 doesn't separate model and view.

i have 50k lines of Ext 3 and I agree with his comment, fwiw. We've completely abandoned it for a polymer-like approach. Ext 3 doesn't separate model and view. Ext 4 has better "model-view-whatever" separation but I never really studied it deeply.