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React 18 Design Patterns and Best Practices

React 18 Design Patterns and Best Practices

By : Carlos Santana Roldán
4.5 (19)
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React 18 Design Patterns and Best Practices

React 18 Design Patterns and Best Practices

4.5 (19)
By: Carlos Santana Roldán

Overview of this book

React helps you work smarter, not harder — but to reap the benefits of this popular JavaScript library and its components, you need a straightforward guide that will teach you how to make the most of it. React 18 Design Patterns and Best Practices will help you use React effectively to make your applications more flexible, easier to maintain, and improve their performance, while giving your workflow a huge boost. With a better organization of topics and knowledge about best practices added to your developer toolbox, the updated fourth edition ensures an enhanced learning experience. The book is split into three parts; the first will teach you the fundamentals of React patterns, the second will dive into how React works, and the third will focus on real-world applications. All the code samples are updated to the latest version of React and you’ll also find plenty of new additions that explore React 18 and Node 19’s newest features, alongside MonoRepo Architecture and a dedicated chapter on TypeScript. By the end of this book, you'll be able to efficiently build and deploy real-world React web applications.
Table of Contents (20 chapters)
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18
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Index

Understanding the useReducer Hook

You probably have some experience using Redux (react-redux) with class components, and if that is the case, then you will understand how useReducer works. The concepts are basically the same: actions, reducers, dispatch, store, and state. Even if, in general, it seems very similar to react-redux, they have some differences. The main difference is that react-redux provides middleware and wrappers such as thunk, sagas, and many more besides, while useReducer just gives you a dispatch method that you can use to dispatch plain objects as actions. Also, useReducer does not have a store by default; instead, you can create one using useContext, but this is just reinventing the wheel.

Let’s create a basic application to understand how useReducer works. You can start by creating a new React app:

npx create-vite reducer --template react-ts

Then, as always, you can delete all files in your src folder except App.tsx and index.tsx to start...

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