How to write Hello World in [Node.js]

Hello world is a most important program for a developer.

Node.js Installation and check its working or notSystem Environment Variable

I will briefly tell you how to write "Hello In Node.Js" in 2 steps.

Step 1:
 Create a text file with extection js.
 like HelloWorld.js and I saved in D:\nodejs\HelloWorld.js

Step 2:
 Open Command prompt or terminal  ,got to the saved folder and type "node HelloWorld.js"
D:\nodejs\>HelloWorld.js

Out Put:

D:\nodejs>node HelloWorld.js
Hello World
D:\nodejs>