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
1
Section 1: Introduction to Hooks
5
Section 2: Understanding Hooks in Depth
13
Section 3: Integration and Migration

Summary

In this chapter, we first learned how to extract custom Hooks from existing code in our blog app. We extracted various Context Hooks into custom Hooks, then created API Hooks and a more advanced Hook for debounced undo functionality. Next, we learned about interactions between Hooks and how we can use values from other Hooks in custom Hooks. We then created local Hooks for our blog app. Then, we learned about testing various Hooks with Jest and the React Hooks Testing Library. Finally, we learned about all the Hooks provided by the React Hooks API, at the time of writing.

Knowing when and how to extract custom Hooks is a very important skill in React development. In a larger project, we are probably going to define many custom Hooks, specifically tailored to our project's needs. Custom Hooks can also make it easier to maintain our application, as we only need to adjust...