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


In this chapter, we first learned about two rules of Hooks: that we should only call Hooks from React function components, and that we need to ensure that the order of Hooks stays the same. Furthermore, we learned about the naming convention of Hooks, and that they should always start with the use prefix. Then, we learned how to enforce the rules of Hooks using eslint. Finally, we learned about useEffect dependencies, and how to fix missing dependencies automatically using eslint.

Knowing about the rules of Hooks, and enforcing them, is very important in order to avoid bugs and unexpected behavior. These rules will be especially important when creating our own Hooks. Now that we have a good grasp on how Hooks work, including their rules and conventions, in the next chapter, we are going to learn how to create our own Hooks!