Installing NodeJS And NPM

What is NodeJS

Node.js is an open-source, cross-platform JavaScript runtime environment that can run JavaScript code outside of a web browser.

What is NPM

NPM or "node package manager" is the default package manager for NodeJS. It consists of a command-line client, also called npm, and an online database of public and paid-for private packages called the npm registry (https://www.npmjs.com/). NPM registry contains thousands of open packages which allow you to perform different kinds of things inside your application.

Installing NodeJS and NPM

1. Head over to https://nodejs.org/en/ and download the "LTS" version of NodeJS which is available for your Operating System. 

1. After you've downloaded the file, follow the usual steps to install the application according to your operating system. (double-clicking the .exe or .pkg)

Verifying Installation

1. Open the terminal and run these commands

node -v
npm -v

2. You should see something like this

3. If you can see the versions of node and npm, it means you have successfully installed NodeJS on your system.