How to install angular js using cmd?

We required node js and npm [node package manager] to install angular js.

Lets first verify those prerequisites are installed or not.
Open your command prompt.
type,

node -v  to check node js is installed or not

npm -v to check npm is installed or not 

Check node js and npm is installed or not

If node js and npm installed, type 

npm install @angular/cli -g  

to install angular js on your machine.

Install angular js using cmd : npm install @angular/cli -g