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  • Book Overview & Buying Learn React with TypeScript
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Learn React with TypeScript

Learn React with TypeScript - Third Edition

By : Carl Rippon
3.3 (3)
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Learn React with TypeScript

Learn React with TypeScript

3.3 (3)
By: Carl Rippon

Overview of this book

Reading, navigating, and debugging a large frontend codebase can be challenging. Learn React with TypeScript, 3rd Edition helps you overcome these challenges by teaching you React, TypeScript, and Next.js, which are core technologies for building scalable, high-performance apps. Updated for React 19, this new edition covers new features such as React Server Components, server functions, and powerful modern hooks, including useFormStatus and useActionState. You'll build type-safe components using TypeScript, making this book ideal for React beginners who want to master patterns. aligned with real-world frontend and React developer roles. You’ll also explore Next.js for RSCs and routing, and learn to use Zustand for global state in React—a lightweight alternative to traditional state managers. The chapters guide you through efficient data-fetching strategies with RSCs in Next.js, as well as in single-page applications (SPAs). The book also covers form handling, reusable architecture, and testing React components with Vitest to ensure robust, production-ready apps. By the end of this book, you’ll have the confidence and skills to build maintainable React applications with TypeScript and Next.js, following modern web development best practices. *Email sign-up and proof of purchase required
Table of Contents (20 chapters)
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1
Part 1: Introduction
5
Part 2: App Fundamentals
9
Part 3:Data
13
Part 4:Advanced React
18
Other Books You May Enjoy
19
Index

Getting code coverage

Code coverage is how we refer to how much of our app code is covered by unit tests. As we write our unit tests, we’ll have a fair idea of what code is covered and not covered, but as the app grows and time passes, we’ll lose track of this.  

In this section, we’ll learn how to use Vitest’s code coverage option so that we don’t have to keep what is covered in our heads. We will use the code coverage option to determine the code coverage on the checklist component and understand all the different statistics in the report. We will use the code coverage report to find some uncovered code in our checklist component. We will then extend the tests on the checklist component to achieve full code coverage.

Installing the code coverage tool

The default code coverage tool for Vitest is coverage-v8. To install this in our project, execute the following command in a terminal:

npm i -D @vitest/coverage-v8
...
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Learn React with TypeScript
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