Installation Prerequisites:
Node.js
Download Node.js from official website and install on your system. NPM comes bundled with Node.js
Angular Cli
Install angular-cli by executing following command on your terminal or command prompt
npm install -g @angular/cli
Install Npm Packages
In terminal go to your project root directory and run the following command. It will download all the dependencies under node_modules folder.
npm install
After completing the installation of the npm packages, run the following command:
npm start
You can check your app at default local server port, which is http://localhost:4200/ . You can also change your local server port with the following command:
ng serve --port 4401