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

Implementing React Context

In the previous chapters, we learned about the most fundamental Hooks, such as the State Hook, the Reducer Hook, and the Effect Hook. We developed a small blog application using these Hooks. We have noticed during the development of our blog app, that we have to pass down the user state from the App component to the UserBar component, and from the UserBar component to the Login, Register, and Logout components. To avoid having to pass down the state like this, we are now going to learn about React context and Context Hooks.

We are going to begin by learning what React context is, and what providers and consumers are. Then, we are going to use Context Hooks as a context consumer, and discuss when context should be used. Finally, we are going to implement themes and global state via contexts.

The following topics will be covered in this chapter:

  • Introducing...