Before you can install the snippet, you must install Vim Snippets Really recommended have installed Vim syntax highlighting and indentation support. Vim CoffeeScript
Clone this repo in some where:
$ git clone git@github.com:carlosvillu/coffeScript-VIM-Snippets.git
$ cd coffeScript-VIM-Snippets
$ cp coffee.snippets ~/.vim/snippets/
Then restart your VIM
##additions added support for backbone.js