Getting Started with Angular CLI

1. Introduction

The Angular CLI (Command Line Interface) is a powerful tool that helps developers to create and manage Angular applications efficiently. It provides a set of commands that simplify the development process, making it easier to generate components, services, and other code files.

2. Installation

To install Angular CLI, you need to have Node.js and npm (Node Package Manager) installed on your system. Follow these steps:

1. Open your terminal or command prompt.
2. Run the following command to install Angular CLI globally:

npm install -g @angular/cli

After installation, verify it by checking the version:

ng version

3. Creating a Project

To create a new Angular project, use the following command:

ng new my-angular-app

Replace my-angular-app with your desired project name. The CLI will prompt you to choose additional configurations like routing and stylesheet format.

4. Serving the Application

Once your project is created, you can serve it using the following command:

cd my-angular-app
ng serve

This will build the application and start a development server. Open your browser and navigate to http://localhost:4200 to see your application.

5. Generating Components

To generate a new component, use the following command:

ng generate component my-component

This command will create a new folder containing the component's files in the src/app directory.

6. Building the Project

To build your application for production, run the following command:

ng build --prod

This command will create a dist folder containing the compiled application, optimized for production.

7. Best Practices

Here are some best practices to follow when using Angular CLI:

• Use consistent naming conventions for components, services, and modules.
• Regularly update Angular CLI and your application dependencies.
• Utilize Angular's built-in linting and formatting tools.
• Keep your components small and focused on a single task.

8. FAQ

npm update -g @angular/cli