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

Using the TypeScript compiler

In this section, we will learn how to use the TypeScript compiler to type check code and transpile it into JavaScript. First, we will use Visual Studio Code and create a simple TypeScript project containing code we have written in a previous section. We will then use the terminal within Visual Studio Code to interact with the TypeScript compiler.

Open Visual Studio Code in a blank folder of your choice, and carry out the following steps:

  1. In the EXPLORER panel in Visual Studio Code, create a file called package.json containing the following content:
    {
      "name": "tsc-play",
      "dependencies": {
        "typescript": "^4.6.4"
      },
      "scripts": {
        "build": "tsc src/product.ts"
      }
    }

The file defines a project name of tsc-play and sets TypeScript as the only dependency. The file also...