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Learning Angular

Learning Angular

By : Aristeidis Bampakos
4 (6)
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Learning Angular

Learning Angular

4 (6)
By: Aristeidis Bampakos

Overview of this book

Angular is an extremely fast, cross-platform JavaScript framework loved by millions. Learning Angular is a comprehensive introduction to the framework from an experienced Angular developer and Google Developer Expert. You’ll learn the Angular way of development as you build a real-world app from the ground up. Updated for Angular 19, this fifth edition tackles landmark changes in Angular after the “Angular Renaissance”. It covers app creation with standalone components, Angular Signals, and the new control flow syntax, while acknowledging differences in approach in older Angular code. You’ll also find a brand-new chapter on optimizing performance with SSR and hydration, as well as revamped content on TypeScript. Angular developers of all experience levels will benefit from this book. It is especially useful if you are new to Angular, as it will help you get to grips with the bare bones of the framework. By the end of this book, you'll be able to create Angular applications with TypeScript from scratch and apply best practices in any Angular codebase.
Table of Contents (15 chapters)
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Learning Angular, Fifth Edition: A practical guide to building web applications with modern Angular

Decorators

Decorators allow us to add metadata to class declarations for further use. By creating decorators, we define special annotations that may impact how our classes, methods, or functions behave or alter the data we define in fields or parameters. They are a powerful way to augment our type's native functionalities without creating subclasses or inheriting from other types. It is, by far, one of the most exciting features of TypeScript. It is extensively used in Angular when designing components or managing dependency injection, as we will learn in Chapter 5, Managing Complex Tasks with Services.

You will probably not need to write a decorator, but knowing their rationale and how they work is helpful to work with Angular applications.

We can define up to four different types of decorators, depending on what element each type is meant to decorate:

  • Class decorators
  • Property decorators
  • Method decorators
  • Parameter decorators

Before discussing the preceding decorators, we must...

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