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Learn React Hooks

Learn React Hooks - Second Edition

By : Bugl
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Learn React Hooks

Learn React Hooks

By: Bugl

Overview of this book

React Hooks allow you to easily encapsulate, reuse, and refactor logic with the same level of simplicity that components bring to user interface organization. In this second edition, React expert and author of many popular React books, Daniel Bugl guides you through the full spectrum of React Hooks, and teaches you how to handle forms, routing, and data fetching in modern React development. This edition is fully updated to React 19, with a revamped structure, expanded real-world use cases, and coverage of all newly introduced Hooks. Starting with the fundamentals, you'll gain a deep understanding of how Hooks work under the hood and how to apply Hooks patterns efficiently. The chapters guide you through using State, Reducer, and Effect Hooks to manage application state, side effects, and complex logic for building your first Hook-based app. You'll utilize Suspense and Context APIs for streamlined data fetching and state management, master Form Actions for handling submissions, and implement routing with Hooks. You’ll also create custom Hooks for advanced functionality and write tests for reliability. Finally, you’ll learn how to refactor an existing app with class components into modern Hooks architecture. By the end of this React book, you'll be well-equipped to use React Hooks to modernize and optimize your React projects.
Table of Contents (19 chapters)
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1
Introduction to Hooks
5
Using Hooks With Real-World Examples
13
Refactoring and Migrating Existing Code
17
Other Books You May Enjoy
18
Index

Debouncing with Hooks

As we have seen in the previous section, when we press undo it undoes a single character at a time. Sometimes, we do not want to store every change in our undo history. To avoid storing every change, we need to implement debouncing, which means that the function that stores the content to the history state is only called after there are no changes for a certain amount of time.

The use-debounce library provides a Debounce Hook, which can be used, as follows, for simple values:

const [text, setText] = useState('')
const [value] = useDebounce(text, 1000)

Now, if we change the text via setText, the text value will be updated instantly, but the value variable will only be updated after 1000 ms (1 second).

However, for our use case, this is not enough. We are going to need debounced callbacks in order to implement debouncing in combination with the History State Hook. Thankfully, the use-debounce library also provides the Debounced Callback...

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Learn React Hooks
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