Node.js

• Exports in modules
  http://openmymind.net/2012/2/3/Node-Require-and-Exports/

• Styling convention
  https://github.com/felixge/node-style-guide

• What is NODE_ENV
  http://www.hacksparrow.com/running-express-js-in-production-mode.html To set a server in production mode, the only thing to do is typing export NODE_ENV=production To have it saved when the server restart

$ echo export NODE_ENV=production >> ~/.bash_profile
$ source ~/.bash_profile