Serving the App

The CLI provides the ability to serve the app with live reload. To serve an application, simply run the command ng serve. This will compile the app and copy all of the application-specific files to the dist folder before serving.

By default, ng serve serves the application locally on port 4200 ( http://localhost:4200 ) but this can be changed by using a command line argument: ng serve —port=8080.

原文: https://angular-2-training-book.rangle.io/handout/cli/serving-the-app.html