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Web Component Essentials

An introduction to creating reusable user interfaces with Web Components. Full working code examples included!

Learn the essentials to get started creating Web Components. Stop rewriting your UI for every front end technology. Increase productivity by learning how to create UI components that work together with Angular, Vue, React and more!

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 Web Components and what value they can provide for your team. We will cover the various APIs used to create Web Components and then build our own. We will also look at advanced tooling to provide more natural ways to create Web Components while still keeping the compatibility and re-usability of Web Components. Learn how to build design systems and share UI components between different JavaScript frameworks/libraries such as Angular, Vue and React. By the end of this book, you will know to build your own suite of UI components and deploy them anywhere in any web development stack. webcomponentessentials.com

This book is continually updated. Currently, the basics of the Web Component APIs have been covered. Upcoming chapters will dive into topics such as advanced component authoring tools and JavaScript framework compatibility. 

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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 - The Component

  1. History of the Component
  2. What is a Web Component?
  3. Custom Elements

Chapter 2 - Templates

  1. Attaching a Template to the Shadow DOM
  2. Content Slot API
  3. Named Slots
  4. Use Case - Dropdown Component

Chapter 3 - Component Communication

  1. Component Properties
  2. Component Events
  3. Use Case - Dropdown Component
  4. Component Custom Attributes

Chapter 4 - Component Lifecycle

  1. JavaScript Class Constructor and Connected Callback
  2. Disconnected Callback
  3. Attribute Changed Callback
  4. Adopted Callback

Chapter 5 - Styling with CSS and the Shadow DOM

  1. Global Styles
  2. CSS Encapsulation
  3. CSS Custom Properties
  4. Dynamic CSS Custom Properties
  5. Using :host and CSS Custom Properties
  6. CSS Parts API
  7. Styling Slotted Elements

Chapter 6 - Theming Web Components

  1. Root Scope and Host Scope
  2. Implementing Dark Themes

Chapter 7 - Component Hierarchy and Architecture

  1. Component Data Flow
  2. Character List
  3. Character Detail

Chapter 8 - Production Ready(ish) Web Components

  1. Publishing with NPM
  2. Browser Support
  3. Polyfills
  4. Installing Webpack and Babel
  5. Webpack

Chapter 9 - Using Web Components in Angular and VueJS

  1. Angular
  2. VueJS

Chapter 10 - Using Web Components in React

  1. React Compatibility
  2. Create React App
  3. Properties and Events
  4. Prop Updates

Chapter 11 - Lit

  1. Lit and Template Literal Strings
  2. Templates and Event Listeners
  3. Properties and Decorators
  4. Custom Events
  5. Binding to other Web Components with Lit

Chapter 12 - Stencil JS

  1. The Stencil CLI
  2. Decorators
  3. JSX Templates
  4. JSX Component Bindings
  5. Building your Stencil Components

Chapter 13 - Building a Todo App with Lit

  1. Implementation
  2. Todos Data Service
  3. Todos List
  4. Todo Item

Chapter 14 - Unit Testing Basics

  1. Setting up the Test Runner
  2. Unit Test Structure
  3. First Unit Test

Chapter 15 - Conclusion

Chapter 16 - Code Examples

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