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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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19
Index

Understanding React effects

In this section, we will learn the difference between the component life cycle methods that we used in class components and the new React effects. Even if you have read in other places that they are the same, just with a different syntax, this is not correct.

Understanding useEffect

When you work with useEffect, you need to think in terms of effects. If you want to perform the equivalent method of componentDidMount using useEffect, you can do the following:

useEffect(() => {
  // Here you perform your side effect
}, [])

The first parameter is the callback of the effect that you want to execute, and the second parameter is the dependencies array. If you pass an empty array ([]) to the dependencies, the state and props will have their original initial values.

However, it is important to mention that even though this is the closest equivalent to componentDidMount, it does not have the same behavior. Unlike componentDidMount and componentDidUpdate...

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