Node.js

1. If the js at the end of the title attracts comparisons to JavaScript, then you are absolutely correct. Node.js is an I/O event driven JavaScript environment, based on Google Chrome's V8 engine.

2. While HTML, CSS and JavaScript handle the front-end aspect of the application, Node.js (more specifically, a framework), handles the back-end. This includes tasks like request handling, database queries, user authentication, application security, error handling, and so on.

3. Before touching up on Node.js, ensure that you feel absolutely comfortable with all the basic concepts of JavaScript, as described in one of the previous sections. This point simply cannot be stressed enough.

Appetizer:

• https://goo.gl/UmxsMa

Tutorials:

Basic:

• http://nodeschool.io/

Advanced:

• https://www.codementor.io/nodejs/tutorial
• https://www.codeschool.com/courses/real-time-web-with-node-js

Comprehensive list:

http://stackoverflow.com/questions/2353818/how-do-i-get-started-with-node-js?rq=1