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)

Chapter 2: Crafting States in Functions

In the previous chapter, we learned how to write function components in React. In this chapter, we will craft a special variable called a state in the function components. We will see what benefits a state can bring us, including requesting a new update, making a variable persistent, listening to a value change, as well as performing tasks upon the mount. We will also see an example of applying a state to a single-page application. In the end, we will look closely at what role the states play within the UI.

We will cover the following topics in this chapter:

  • Crafting a state in a function component
  • Applying states to single-page applications
  • How states work with UIs
  • Questions and answers