Install NodeJs

What is NodeJS

• Node.js is an open source server framework
• Node.js is free
• Node.js runs on various platforms (Windows, Linux, Unix, Mac OS X, etc.)
• Node.js uses JavaScript on the server

Click here to check Why Node.js

What is npm?

npm makes it easy for JavaScript developers to share and reuse code, and it makes it easy to update the code that you're sharing.

Click here to learn more on npm.

Install npm

Click here to download and install the npm on your machine.

Test if nodeJs is installed correctly, run below command.

npm -v

or 

npm --version

npm version

Start npm run start, if you get below error 

npm ERR! path C:\Users\Kishore\package.json
npm ERR! code ENOENT
npm ERR! errno -4058
npm ERR! syscall open
npm ERR! enoent ENOENT: no such file or directory, open 'C:\Users\Kishore\package.json'
npm ERR! enoent This is related to npm not being able to find a file.
npm ERR! enoent

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\Kishore\AppData\Roaming\npm-cache\_logs\2017-08-19T14_53_13_265Z-debug.log

You can avoid above error by following below

• running the npm command from bin folder
• set environment variables (~\bin)