Book Image

Learn React with TypeScript - Second Edition

By : Carl Rippon
4.4 (8)
Book Image

Learn React with TypeScript - Second Edition

4.4 (8)
By: Carl Rippon

Overview of this book

Reading, navigating, and debugging a large frontend codebase is a major issue faced by frontend developers. This book is designed to help web developers like you learn about ReactJS and TypeScript, both of which power large-scale apps for many organizations. This second edition of Learn React with TypeScript is updated, enhanced, and improved to cover new features of React 18 including hooks, state management libraries, and features of TypeScript 4. The book will enable you to create well-structured and reusable React components that are easy to read and maintain, leveraging modern design patterns. You’ll be able to ensure that all your components are type-safe, making the most of TypeScript features, including some advanced types. You’ll also learn how to manage complex states using Redux and how to interact with a GraphQL web API. Finally, you’ll discover how to write robust unit tests for React components using Jest. By the end of the book, you’ll be well-equipped to use both React and TypeScript.
Table of Contents (19 chapters)
1
Part 1: Introduction
6
Part 2: App Fundamentals
10
Part 3: Data
14
Part 4: Advanced React

Summary

In this chapter, we created a reusable checklist component and used many useful patterns along the way.

We started by learning how to implement generic props, which allow a component to be used with varying data types but still be strongly typed. We used this to allow varying data to be passed into the checklist component without sacrificing type safety.

We learned how to allow consumers of a component to spread props onto an internal element. A common use case is spreading props onto the internal container element to allow the consumer to size it, which is what we did with the checklist component.

The render prop pattern is one of the most useful patterns when developing reusable components. We learned that it allows the consumer to take responsibility for rendering parts of the component. We used this pattern to override the rendering of list items in our checklist component.

Custom hooks isolate logic and are useful for sharing logic across components and keeping...