Should we switch from CoffeeScript?

I really love CoffeeScript. But I share your concern that It's future is uncertain. I also really like LiveScript, another of Jeremy Ashkenas language projects (It's like 80% Coffeescript.)

I think you've confused static & dynamic typing; JavaScript has types, and a `typeof` operator.

Thanks You are right, I meant static typing

try Clojurescript. it's really nice!