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

Understanding the benefits of TypeScript

In this section, we will start by understanding what TypeScript is, how it relates to JavaScript, and how TypeScript enables teams to be more productive.

Understanding TypeScript

TypeScript was first released in 2012 and is still being developed, with new releases happening every few months. But what is TypeScript, and what are its benefits?

TypeScript is often referred to as a superset or extension of JavaScript because any feature in JavaScript is available in TypeScript. Unlike JavaScript, TypeScript can’t be executed directly in a browser – it must be transpiled into JavaScript first.

Note

It is worth being aware that a proposal is being considered that would allow TypeScript to be executed directly in a browser without transpilation. See the following link for more information: https://github.com/tc39/proposal-type-annotations.

TypeScript adds a rich type system to JavaScript. It is generally used with frontend...