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Learning Angular

You're reading from   Learning Angular A no-nonsense beginner's guide to building web applications with Angular 10 and TypeScript

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Product type Paperback
Published in Sep 2020
Publisher Packt
ISBN-13 9781839210662
Length 430 pages
Edition 3rd Edition
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Authors (2):
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Aristeidis Bampakos Aristeidis Bampakos
Author Profile Icon Aristeidis Bampakos
Aristeidis Bampakos
Pablo Deeleman Pablo Deeleman
Author Profile Icon Pablo Deeleman
Pablo Deeleman
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Toc

Table of Contents (19) Chapters Close

Preface 1. Section 1: Getting Started with Angular
2. Chapter 1: Building Your First Angular App FREE CHAPTER 3. Chapter 2: Introduction to TypeScript 4. Section 2: Components – the Basic Building Blocks of an Angular App
5. Chapter 3: Component Interaction and Inter-Communication 6. Chapter 4: Enhance Components with Pipes and Directives 7. Chapter 5: Structure an Angular App 8. Chapter 6: Enrich Components with Asynchronous Data Services 9. Section 3: User Experience and Testability
10. Chapter 7: Navigate through Components with Routing 11. Chapter 8: Orchestrating Validation Experiences in Forms 12. Chapter 9: Introduction to Angular Material 13. Chapter 10: Giving Motion to Components with Animations 14. Chapter 11: Unit test an Angular App 15. Section 4: Deployment and Practice
16. Chapter 12: Bringing an Angular App to Production 17. Chapter 13: Develop a Real-World Angular App 18. Other Books You May Enjoy

Chapter 8: Orchestrating Validation Experiences in Forms

Web applications use forms when it comes to collecting data from the user. Use cases vary from allowing a user to log in, filling in payment information, booking a flight, or even performing a search. Form data can later be persisted on local storage or be sent to a server using a backend API. A form usually has the following characteristics that enhance the user experience of a web app:

  • Can define different kinds of input fields
  • Can set up different kinds of validations and display validation errors to the user
  • Can support different strategies for handling data in case the form is in an error state

The Angular framework provides two approaches to handle forms: template-driven and reactive. Neither approach is considered better than the other; you just have to go with the one that suits your scenario the best. The main difference between the two approaches is how they manage data:

  • Template-driven...
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