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What does Angular CLI do?

Angular CLI (Command Line Interface) is a command-line tool that helps quickly create, configure, and manage Angular applications.


What Angular CLI does:

  1. Creates a project from scratch
bash
ng new my-app
  • immediately generates the project structure, sets up the build, configuration, TypeScript, and everything needed.
  1. Runs a local server
bash
ng serve
  • runs the application in the browser and watches for changes (hot reload).
  1. Generates code
bash
ng generate component my-button
  • automatically creates components, services, modules, pipes, and so on from a template, so you don't write them by hand.
  1. Builds the project for production
bash
ng build --prod
  • minifies, optimizes, and bundles the files into dist/.
  1. Runs tests
bash
ng test / ng e2e
  • runs unit tests or end-to-end tests with the required configuration.

Why it's needed

  • speeds up work
  • eliminates routine tasks
  • helps keep the code structured
  • minimizes configuration errors

In one sentence

Angular CLI is a tool that automates creating, developing, building, and testing Angular applications through convenient terminal commands.

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