TypeScript Extjs code emitter
Another typescript for extjs compiler
I also created a Typcript for ExtJs compiler, but this on also infers extra interfaces and methods based on ExtJS conventions,which can be very useful. All compiler features are opt-in using annotations in comments. Since you can replace the Visual Studio language service, all the stuff inferred by the compiler will be available in Visual Studio intelisense.
For example when defining a class you can tell the compiler to generate an interface that contains the configuration properties and you can use that as your constructor parameter so you get intelisense when you call the constructor.