Building Your First Angular Application

Creating a Simple UI

Generate a new component using the Angular CLI.

ng generate component course-list

The command automatically creates the component files, including the HTML template, CSS stylesheet, TypeScript logic, and test file.

Next, add the application logic inside course-list.ts.

// course-list.ts

// Add the course list and filtering logic here.

Then build the user interface inside course-list.html.

<!-- course-list.html -->

<!-- Add the search box and course list template here. -->

Connecting Components

Display the newly created component by adding its selector inside the parent template.

<app-course-list></app-course-list>

If the component uses ngModel, import FormsModule directly into the standalone component.

@Component({

selector: 'app-course-list',

standalone: true,

imports: [FormsModule],

templateUrl: './course-list.html'

})

Testing the Application

Run the application using the Angular development server.

ng serve --open

Open the browser and verify that:

• The course list is displayed.
• Typing "py" filters the list to show Python.
• The search results update instantly without refreshing the page.

Key Takeaways

• Angular is a powerful TypeScript-based framework for building scalable web applications.
• Components, data binding, and directives form the foundation of every Angular application.
• Angular Forms simplify user input handling using both Template-Driven and Reactive approaches.
• Pipes and Services improve code reusability by formatting data and separating business logic from the UI.
• The Angular CLI streamlines development by making it easy to create, run, and manage Angular applications.