Why NODE.js Application

What is Node.js?

Node JS is JavaScript run time environment which is:

1. Open-source
2. Cross-Platform
3. Used to execute JavaScript code server-side 
4. Has an event-driven architecture capable of asynchronous I/O

 This makes NodeJS capable of responding very fast to requests

e.g. It can immediately give a client the result asynchronously handle database updates which generally take a long time.

This is the one of the reason why Node.js is used so much

Node.js users

Node.js is used by,

1. PayPal — (using NodeJS for its customer-facing side of their web application)
2. LinkedIn — (to deal with scale)
3. Uber — (to process lots of data quickly, address errors on the fly- without restart and active community that makes NodeJS better over time)
4. Yahoo, Mozilla, New York Times, Medium, Netflix also used

Why Node.js

1. We used a Node.js example project because it’s relatively easy to understand, even when you never have used it before 
2. It doesn’t need to be compiled, so building the app doesn’t take a lot of memory (Unlike building Java projects)
3. Once you understand how to build a simple Node.js project, you can use the knowledge to start building large more complex projects.

That's it….