Book Image

Designing React Hooks the Right Way

By : Fang Jin
Book Image

Designing React Hooks the Right Way

By: Fang Jin

Overview of this book

React hook creates a unique solution for using states in function components to orchestrate UI communication. They provide you with an easy interface to write custom data management solutions with low development and maintenance costs. Understanding how Hooks are designed enables you to use them more effectively, and this book helps you to do just that. This book starts with a custom-crafted solution to reveal why Hooks are needed in the first place. You will learn about the React engine and discover how each built-in Hook can manage a persistent value by hooking into it. You will walk through the design and implementation of each hook with code so that you gain a solid understanding. Finally, you'll get to grips with each Hook's pitfalls and find out how to effectively overcome them. By the end of this React book, you'll have gained the confidence to build and write Hooks for developing functional and efficient web applications at scale.
Table of Contents (12 chapters)

Building an app with components

To start building an application, here's a block of HTML you can start with:

<!doctype HTML>
<HTML lang="en">
    <div id="root"></div>

These days, we have more and more SPAs that update parts of pages on the fly, which makes using the website feel like a native application. A quick response time is what we are aiming for. JavaScript is the language to deliver this goal, from displaying the user interface to running application logic and communicating with the web server.

To add logic, React takes over one section of the HTML to start a component:

  const App = () => {
    return <h1>Hello World.</h1>
  const rootEl = document.getElementById("root")
  ReactDOM.render(<App />, rootEl)