Convert JavaScript to CoffeeScript
Rico Sta. Cruz created an awesome converter js2coffee. If you are planning to get into CoffeeScript, you have to check this page out.
http://ricostacruz.com/js2coffee
It will not craft CoffeeScript as well as if you did it by hand, but it is great to take some existing javascript and paste it in and see how it renders the CoffeeScript.
I just went over the https://github.com/visionmedia and grabbed the javascript from “node-growl” js file and pasted it in the javascript editor at js2coffee. It converted it to CoffeeScript and the generated CoffeeScript code was functional and compiled back into JavaScript!