Summary  
This chapter covers the implementation of a modular, component-based architecture featuring directives for DOM behavior, injectable services via dependency injection, view routing, and two-way data binding to synchronize UI and logic.

General domain of usage  
Web application development

The **key principles** of **Angular** help you build **applications** with less effort and more organized **code**. They make **developers' work** easier by allowing them to focus on **tasks** instead of getting caught up in the **details**. **Angular**, as a set of **tools**, helps bring all the parts together and makes the **application** user-friendly.

In the following chapters, you'll get hands-on experience with these core principles, applying them in practice as you build real Angular applications.

Note

What do the key principles of Angular do?

Discover how to build modern web applications using Angular, one of the most powerful frontend frameworks. You'll start with the core concepts, set up your development environment, and gradually move on to building dynamic, interactive components. Along the way, you'll work with directives, services, routing, and the latest approach with Standalone Components. With each step, you'll gain practical skills to confidently develop and organize Angular applications following industry best practices.

Discover the core concepts of Angular and how it simplifies web development. Learn about its key principles, evolution, and how to set up the necessary tools to start building applications.

Discover the fundamentals of components and templates in Angular, including how they are created, structured, and interact with each other to build dynamic, data-driven applications.

Dive into Angular's directives and pipes to learn how they make your templates smarter and your data cleaner. Discover how to control DOM behavior with directives and transform displayed data with powerful, built-in or custom pipes.

Learn how to organize and reuse logic in your Angular applications using services. You'll discover how to create services and inject them into components with Angular's built-in Dependency Injection system. This keeps your code clean, modular, and easier to maintain.

Learn how Angular applications used to rely on modules and discover why the framework is now embracing a more flexible approach with Standalone Components. Dive into the structure of NgModules, understand their key elements, and explore when and how to use Standalone Components in modern Angular development.

Learn how Angular handles routing and navigation to build dynamic single-page applications. In this section, you'll discover how to define routes and navigate between views using Angular's built-in tools.

Key Principles of the Framework

1. What do the key principles of Angular do?

2. What are components in Angular?

3. What does a directive do in Angular?

Awesome!

Key Principles of the Framework

1. What do the key principles of Angular do?

2. What are components in Angular?

3. What does a directive do in Angular?