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Angular Cookbook

You're reading from   Angular Cookbook Over 80 actionable recipes every Angular developer should know

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Product type Paperback
Published in Dec 2023
Publisher Packt
ISBN-13 9781803233444
Length 536 pages
Edition 2nd Edition
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Author (1):
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Muhammad Ahsan Ayaz Muhammad Ahsan Ayaz
Author Profile Icon Muhammad Ahsan Ayaz
Muhammad Ahsan Ayaz
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Table of Contents (16) Chapters Close

Preface 1. Winning Component Communication 2. Working with Angular Directives and Built-In Control Flow FREE CHAPTER 3. The Magic of Dependency Injection in Angular 4. Understanding Angular Animations 5. Angular and RxJS – Awesomeness Combined 6. Reactive State Management with NgRx 7. Understanding Angular Navigation and Routing 8. Mastering Angular Forms 9. Angular and the Angular CDK 10. Writing Unit Tests in Angular with Jest 11. E2E Tests in Angular with Cypress 12. Performance Optimization in Angular 13. Building PWAs with Angular 14. Other Books You May Enjoy
15. Index

Component communication using signals

Signals are a powerful addition in the Angular ecosystem. They are also more efficient than regular Angular class properties because when you change the value of a signal, Angular will only notify the components that are subscribed to that signal to run the change detection. This can improve the performance of your application, especially if there are many components that are subscribed to the signal. In this recipe, we will work with Angular Signals to achieve a few interesting results. We will show the number of the finished tasks against total tasks. And we will show a message when all tasks are completed. Let’s do this!

Getting ready

The app that we are going to work with resides in start/apps/chapter01/ng-cc-signals inside the cloned repository. Perform the following steps to get started:

  1. Open the code repository in your code editor.
  2. Open the terminal, navigate to the code repository directory, and run the...
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