Well while going ahead with my NodeJS study and after looking at the functionality that NodeJS provides, I got a little curious to search for something which might help me develop in JS a little more easily. To my surprise, I found a lot of languages which does that, but I picked 3 as it seemed these are got some history to themselves and backed by big corporate or have a huge community to support.
Now a little bit about the face value of the three.
CoffeeScript : A huge community and has proven history of a good player.
TypeScript : Its a microsoft initiative.
Dart : Its a Google initiative.
Looking at all these, I still feel HAXE is the best for JS dev too, may be thats my biased opinion.