Installing Angular & Setting Environment

Firstly you need to install Node.js which you can download easily from its official website :https://nodejs.org.
To check whether it has been installed or not you can type the command “node -v“, this will also let you know the version of the Node.js.

Now a question arise why we need Node.js also to work with Angular…

Well Node.js comprise of npm(Node Package Manager) by default. NPM provides Angular CLI (Angular Command Line Interface).
Angular CLI is a powerful tool that makes the job easy by simply running the commands instead of creating file and writing code in it.
Also, browser is not friendly with Typescript (Angular applications use and prefer typescript). So Angular CLI uses the AngularCompilerPlugin(a webpack plugin consist of typescript compiler with various typescript transformer ) to transpile typescript into javascript.
So Node.js save the time especially when you or fresher have just started learning the applications. You don’t need to get worried for the dependencies and updating the package.json.
Node.js is used to build fast, server side applications. It comes with light weight server to run the application on the host.