Book Image

Learn React with TypeScript 3

By : Carl Rippon
Book Image

Learn React with TypeScript 3

By: Carl Rippon

Overview of this book

React today is one of the most preferred choices for frontend development. Using React with TypeScript enhances development experience and offers a powerful combination to develop high performing web apps. In this book, you’ll learn how to create well structured and reusable react components that are easy to read and maintain by leveraging modern web development techniques. We will start with learning core TypeScript programming concepts before moving on to building reusable React components. You'll learn how to ensure all your components are type-safe by leveraging TypeScript's capabilities, including the latest on Project references, Tuples in rest parameters, and much more. You'll then be introduced to core features of React such as React Router, managing state with Redux and applying logic in lifecycle methods. Further on, you'll discover the latest features of React such as hooks and suspense which will enable you to create powerful function-based components. You'll get to grips with GraphQL web API using Apollo client to make your app more interactive. Finally, you'll learn how to write robust unit tests for React components using Jest. By the end of the book, you'll be well versed with all you need to develop fully featured web apps with React and TypeScript.
Table of Contents (14 chapters)

Advanced Types

We've already learned about a fair amount of the type system in TypeScript. In this chapter, we'll continue on this journey, this time diving into some of the more advanced types and concepts that will help us later in the book to create reusable strongly type React components.

We'll learn about how we can combine existing types to create union type. We'll find out in Chapter 8, React Redux, that these types are fundamental to creating strongly typed React Redux code.

We briefly covered type guards in Chapter 2, What is New in TypeScript 3, when we learned about the unknown type. We look at these in more detail in this chapter.

Generics are a TypeScript feature that many libraries use to allow consumers to create strongly typed apps with their library. React itself uses it in class components to allow us to create strongly typed props and states...