Book Image

Designing React Hooks the Right Way

By : Fang Jin
Book Image

Designing React Hooks the Right Way

By: Fang Jin

Overview of this book

React hook creates a unique solution for using states in function components to orchestrate UI communication. They provide you with an easy interface to write custom data management solutions with low development and maintenance costs. Understanding how Hooks are designed enables you to use them more effectively, and this book helps you to do just that. This book starts with a custom-crafted solution to reveal why Hooks are needed in the first place. You will learn about the React engine and discover how each built-in Hook can manage a persistent value by hooking into it. You will walk through the design and implementation of each hook with code so that you gain a solid understanding. Finally, you'll get to grips with each Hook's pitfalls and find out how to effectively overcome them. By the end of this React book, you'll have gained the confidence to build and write Hooks for developing functional and efficient web applications at scale.
Table of Contents (12 chapters)

Questions and answers

The following are some questions and answers to refresh your knowledge:

  1. What is a React context?

    A React context is an identity that can be used to share a value with consumers. It's designed so that a value can be provided to a localized scope, hence all components within that scope can read from this shared value.

  2. What is the useContext hook?

    The useContext hook is used in a consumer component so that it can read a context given by providers. A component can consume as many contexts as it can. When the provider gets updated, all the consumer components for that particular context get updated at the same time.

  3. What's the common usage of useContext?

    The useContext hook is a hook in the React hook family when it comes to an update involving an area of components. We often see this context usage in User, Theme, and Table, which requires the consumption of a value under an ancestor component without passing it explicitly through layers of...