Building Polyfills

Preface;
Who This Book Is For;
How This Book Is Organized;
Conventions Used in This Book;
Using Code Examples;
Safari® Books Online;
How to Contact Us;
Acknowledgments;
Foreword;
Building Polyfills;
Chapter 1: The Current State of Web Polyfills;
1.1 Polyfilling: Past, Present, and Future;
1.2 What Is a Polyfill (and What Is It Not)?;
1.3 Types of Polyfills;
1.4 Why Polyfills Still Matter;
Chapter 2: Principles and Practices of Polyfill Development;
2.1 Building Responsible Polyfills;
2.2 Principles of Responsible Polyfill Development;
Chapter 3: Building Your First Polyfill, Part 1: Getting Started;
3.1 The HTML5 Forms Polyfill;
3.2 Setting Up Your Polyfill Project;
3.3 Specifying the API;
3.4 Deciding What to Build;
3.5 Adding Basic Features;
3.6 Beefing Up Your Polyfill with Additional Features;
3.7 Building Utility Polyfills;
3.8 Polyfilling Visual Features With CSS;
3.9 Testing Your Work Across Browsers;
Chapter 4: Building Your First Polyfill, Part 2: Build Workflows and Cross-Browser Testing;
4.1 Setting Up Your Project Workflow;
4.2 Jump-Starting Your Workflow;
4.3 Adding Unit Tests to Your Polyfill;
4.4 Automating Cross-Browser Polyfill Testing;
4.5 Configuring Cross-Browser Tests with Karma;
4.6 The Bottom Line: Use What Works for You!;
Chapter 5: Building Your First Polyfill, Part 3: Performance and Edge-Case Testing;
5.1 Building for Performance;
5.2 Dealing with Browser-Specific Edge Cases;
5.3 Mobile-Specific Considerations;
Prollyfilling and the Future of the Web Platform;
Chapter 6: The Future of Polyfilling;
6.1 Polyfilling: Not Just For Older Browsers;
6.2 Prollyfilling: Extending the Web Forward;
6.3 Prollyfills In Action: Prollyfilling CSS;
6.4 Prollyfills in Action: ServiceWorker;
6.5 Prollyfills in Action: Web Components;
6.6 Strategies for Polyfilling Experimental APIs;
Chapter 7: Building Your First Prollyfill;
7.1 Prollyfills vs. Polyfills: What’s the Difference?;
7.2 The Resource Priorities Prollyfill;
7.3 Specifying the API and Deciding What to Build;
7.4 Setting Up Your Prollyfill Project;
7.5 Adding Prollyfill Features;
7.6 What’s Next?;
Colophon;