Set up Angular CLI and simple angular application

Source: https://angular.io/guide/quickstart

Install Node.js® and npm if they are not already on your machine.

Verify that you are running at least node 6.9.x and npm 3.x.x by running node -v
and npm -v in a terminal/console window.
Older versions produce errors, but newer versions are fine.

Then install the Angular CLI globally.

npm install -g @angular/cli

 Create a new project

Open a terminal window.

Generate a new project and skeleton application by running the following commands:

ng new my-app

Patience, please. It takes time to set up a new project; most of it is spent installing npm packages.

Serve the application

Go to the project directory and launch the server.

cd my-app
ng serve --open

The ng serve command launches the server, watches your files, and rebuilds the app as you make changes to those files.

Using the --open (or just -o) option will automatically open your browser on http://localhost:4200/.

Your app greets you with a message: