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Angular Form Essentials

A practical beginners guide on how to build forms with Angular.

Learn the essentials to get started creating complex forms with Angular! Learn to build custom input controls, handle validation and user accessibility.

Authored by Google Developer Expert, Cory Rylan.

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About

About

About the Book

The goal of this book is to provide a practical introduction to the Angular Forms API and how they can help build complex forms in web applications. We will cover the various APIs used to create complex user forms. We will also look at how to handle validation logic, async data and custom form inputs. Learn how to use RxJS and Observables to build powerful reactive forms. An entire chapter is dedicated to creating accessible (a11y) forms in Angular as well.

This book is continually updated. Currently, the main core concepts of the Angular Form APIs have been covered. Upcoming chapters will dive into more in-depth topics such as reactive programming with RxJS and Reactive Forms as well as building dynamic forms from data models.

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Author

About the Author

Cory Rylan

My name is Cory RylanGoogle Developer ExpertSpeaker, Software Developer. Building Design Systems and Web Components.

Contents

Table of Contents

Introduction

  1. About the Author
  2. What is this Book About?
  3. Technical Prerequisites
  4. Source Code Examples

Chapter 1 - HTML Forms

  1. HTML
  2. Events
  3. Properties

Chapter 2 - Reactive Forms

  1. Reactive Forms Module
  2. Form Control Validation

Chapter 3 - Form Group API

  1. Form Builder

Chapter 4 - Custom Form Validation

  1. Dynamic Control Accessors
  2. Custom Form Level Validation

Chapter 5 - Advanced Form Types

  1. Inline/Text Based Inputs
  2. Checkbox
  3. Select
  4. Distance
  5. Radio

Chapter 6 - Accessibility with Angular Forms

  1. HTML Form Basics
  2. Angular Reactive Forms
  3. Multiple Angular Form Groups
  4. Accessible Form Validation
  5. Accessible Inline Form Validation
  6. Angular Form Group Validation
  7. Accessible Form Validation Summary
  8. Accessible Form Status Messages

Chapter 7 - Async Form Data

  1. Form SetValue and PatchValue

Chapter 8 - Dynamic Form Controls

  1. Dynamic Select Input
  2. Dynamic Radio Lists

Chapter 9 - Dynamic Form Controls with Form Array

  1. Validation

Chapter 10 - Async Form Validation

Chapter 11 - Template Form API

Chapter 12 - Custom Form Controls

  1. Custom Form Controls with Reactive Forms
  2. Custom Form Controls with Template Forms and NgModel
  3. Building a Custom Form Control

Chapter 13 - Observables and RxJS

  1. JavaScript Promise
  2. RxJS Observables
  3. Unsubscribing
  4. Operators

Chapter 14 - Reactive Forms

  1. ValueChanges Observable
  2. HttpClient
  3. SwitchMap Operator
  4. Debounce Time

Chapter 15 - Reusable Form Components

  1. Sub Forms with Control Value Accessor
  2. Reusable Password Creation Form

Chapter 16 - Validation Management

Chapter 17 - Code Examples

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