React Under the Hood
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React Under the Hood

A Beginner's Guide

About the Book

This book is an introduction to React, but also dives much deeper into the ideas behind React. Rather than cargo-culting on what is popular, the goal is to show the reader how React works under the hood, as well as go over how to use it. In addition, we will be going over why React is great for working with existing legacy code and third-party libraries such as jQuery plugins. We will also go over advanced techniques for improving performance. By the end of this book the reader should fully understand React's architectural philosophy and design decisions.

To achieve this, the book will be a mixture of explanations and a practical exercise where the reader will build a simple Star Trek video game.

About the Author

Freddy Rangel
Freddy Rangel

Freddy Rangel is a Front End Software Engineer at HelloSign. He is a regular speaker at conferences and meetups as well as an instructor on various topics including JavaScript patterns, Test Driven Development, and refactoring.

Table of Contents

  • About the Author
  • Acknowledgments
  • Chapter 1: Introduction
    • Why This Book Was Written
    • What This Book Is About
    • What This Book Is Not About
    • Who Should Read This Book
  • Chapter 2: React at a High Level
    • What Is React?
    • How React Views the World
    • React Is Not MVC
    • How to Actually Separate Concerns: Write Components, Not Templates
    • Data Binding
    • Virtual DOM
    • Data in React
  • Chapter 3: React’s Design Under the Hood
    • Virtual DOM Diff Algorithm
    • Sibling Elements
    • Event Delegation and Autobinding
    • Rendering
  • Chapter 4: Star Trek Video Game Demo
    • Setup
    • Tooling:
    • Hello World
    • Star Chart
    • Starship
    • Ship Info
    • Navigation
    • Charting a New Course
    • Warp Drive Controls
    • Searching a Star System
    • Summary
  • Chapter 5: Advanced topics
    • Relevant Libraries & Concepts
    • Performance Optimization
    • More About Props
    • Inline Styles
  • Conclusion

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