What is "coffeescript"

Coffeescript is a small language that compiles to javascript. Underneath all these inconvenient keys and commas, Javascript has always had a beautiful object model in its heart. Coffeescript is an attempt to expose the good parts of Javascript in a simple way.

Coffeescript can be used in any Javascript environment. Including on web pages through the tag <script type="text/coffeescript">. With Node.js it is possible to compile the code from the command line. Coffeescript is also available as a Ruby Gem.

Documentation and downloads can be found on coffeescript website.