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Learning Angular

You're reading from Learning Angular A practical guide to building web applications with modern Angular

Product type Paperback

Published in Jan 2025

Publisher Packt

ISBN-13 9781835087480

Length 494 pages

Edition 5th Edition

Languages

Typescript

Tools

Angular

Concepts

Front End Web Development

Author (1):

Aristeidis Bampakos

View More author details

Table of Contents (19) Chapters

Preface

1. Building Your First Angular Application

2. Introduction to TypeScript FREE CHAPTER

3. Structuring User Interfaces with Components

4. Enriching Applications Using Pipes and Directives

5. Managing Complex Tasks with Services

6. Reactive Patterns in Angular

7. Tracking Application State with Signals

8. Communicating with Data Services over HTTP

9. Navigating through Applications with Routing

10. Collecting User Data with Forms

11. Handling Application Errors

12. Introduction to Angular Material

13. Unit Testing Angular Applications

14. Bringing Applications to Production

15. Optimizing Application Performance

16. Unlock Your Book’s Exclusive Benefits

17. Other Books You May Enjoy

18. Index

Injecting services in the component tree

The @Component decorator has a providers property to register services with an element injector. A service that registers with the element injector can serve two purposes:

It can be shared with its child components
It can create multiple copies of the service every time the component that provides the service is rendered

In the following sections, we’ll learn how to apply each approach.

Sharing dependencies through components

A service provided through a component can be shared among the child components of the parent component, and it is immediately available for injection at their constructors. Child components reuse the same instance of the service from the parent component. Let’s walk our way through an example to understand this better:

Create a new Angular component named favorites:

ng generate component favorites

Open the favorites.component.ts file and modify the import statements accordingly:

import { Component...

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Authors (1)

Aristeidis Bampakos

Aristeidis Bampakos

Aristeidis Bampakos is a Web Development Team Lead at Plex-Earth who specializes in the development of web applications with Angular. He has been an Angular Google Developer Expert (GDE) since 2020 and works as an Angular Senior Tech Instructor at Code.Hub, a private educational institute, where he nurtures aspiring Angular developers and professionals. He is also the author of Angular Projects with Packt.

See other products by Aristeidis Bampakos

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