Book Image

React Design Patterns and Best Practices

By : Michele Bertoli
Book Image

React Design Patterns and Best Practices

By: Michele Bertoli

Overview of this book

Taking a complete journey through the most valuable design patterns in React, this book demonstrates how to apply design patterns and best practices in real-life situations, whether that’s for new or already existing projects. It will help you to make your applications more flexible, perform better, and easier to maintain – giving your workflow a huge boost when it comes to speed without reducing quality. We’ll begin by understanding the internals of React before gradually moving on to writing clean and maintainable code. We’ll build components that are reusable across the application, structure applications, and create forms that actually work. Then we’ll style React components and optimize them to make applications faster and more responsive. Finally, we’ll write tests effectively and you’ll learn how to contribute to React and its ecosystem. By the end of the book, you’ll be saved from a lot of trial and error and developmental headaches, and you will be on the road to becoming a React expert.
Table of Contents (19 chapters)
React Design Patterns and Best Practices
About the Author
About the Reviewer
Customer Feedback

Reusable components

We have seen what are the best ways to create components and the scenarios where it makes sense to use a local state. We have also seen how we can make our components reusable defining a clear interface with prop types.

Let's now dive into a real world example and take a look at how we can transform a non-reusable component into a reusable one with a generic and cleaner interface.

Suppose we have a component that loads a collection of posts from an API endpoint, and it shows the list on the screen.

It is a simplified example, but it is useful for understanding the necessary steps we need to take to make components reusable.

The component is defined as follows:

class PostList extends React.Component 

With the constructor and a life cycle method:

constructor(props) { 
  this.state = { 
    posts: [], 
componentDidMount() { 
  Posts.fetch().then(posts => { 
    this.setState({ posts })