is a language which compiles down to JavaScript. It is a fork of Coco, which is in turn derived from CoffeeScript. Like those two it has a relatively straightforward mapping to JavaScript. LiveScript is Coco but much more compatible with CoffeeScript, more functional, and more feature rich. LiveScript aims for increased expressiveness and code beauty.
Checkout gkz.github.com/LiveScript for more information, examples, usage, and a language reference.
Have Node.js installed, then sudo bin/slake install
From then run livescript for more information.
Via npm: sudo npm install -g LiveScript
git://github.com/gkz/LiveScript.git