Book Image

Learn React Hooks

By : Daniel Bugl
Book Image

Learn React Hooks

By: Daniel Bugl

Overview of this book

React Hooks revolutionize how you manage state and effects in your web applications. They enable you to build simple and concise React.js applications, along with helping you avoid using wrapper components in your applications, making it easy to refactor code. This React book starts by introducing you to React Hooks. You will then get to grips with building a complex UI in React while keeping the code simple and extensible. Next, you will quickly move on to building your first applications with React Hooks. In the next few chapters, the book delves into various Hooks, including the State and Effect Hooks. After covering State Hooks and understanding how to use them, you will focus on the capabilities of Effect Hooks for adding advanced functionality to React apps. You will later explore the Suspense and Context APIs and how they can be used with Hooks. Toward the concluding chapters, you will learn how to integrate Redux and MobX with React Hooks. Finally, the book will help you develop the skill of migrating your existing React class components, and Redux and MobX web applications to Hooks. By the end of this book, you will be well-versed in building your own custom Hooks and effectively refactoring your React applications.
Table of Contents (19 chapters)
Free Chapter
Section 1: Introduction to Hooks
Section 2: Understanding Hooks in Depth
Section 3: Integration and Migration

Migrating from React Class Components

In the previous chapter we learned how to build our own Hooks by extracting custom Hooks from existing code. Then, we used our own Hooks in the blog app and learned about local Hooks and the interactions between Hooks. Finally, we learned how to write tests for Hooks using the React Hooks Testing Library, and implemented tests for our custom Hooks.

In this chapter, we are going to start by implementing a ToDo app using React class components. In the next step, we are going to learn how to migrate an existing React class component application to Hooks. Seeing the differences between function components using Hooks and class components in practice will deepen our understanding about the trade-offs of using either solution. Furthermore, by the end of this chapter we will be able to migrate existing React applications to Hooks.

The following topics...