Angular

 1.Install node from the official website

2.Run the command in command prompt

npm install -g @angular/cli

For specific angular version mention @

npm install -g @angular/cli@17

To install any package in angular 

npm install <package name>

Ex:npm install ng-multiselect-dropdown

For specific version 

npm install <package name>@version
Ex: npm install ng-multiselect-dropdown@4.2