[randomfool]

For statically typing Javascript, I strongly recommend Google's Closure toolset- it uses JS comments to statically type and validate your code, plus you can either run it compiled or uncompiled.

https://developers.google.com/closure/

There are no editors that give you the nice intellisense bells and whistles, but static typing is by far the most important for me.

[eranation]

There were tools ones in eclipse that used comments / annotations to give you full "static" feeling with JavaScript... I wonder where did it go...

Here is a nice side project, static typed coffee script, with eclipse IDE support...

I really don't want to go back to GWT or move to Dart...

Scala's Javascript DSL is another hope I have, but it's still under development