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)


GraphQL shines over REST because it allows us to efficiently get the data we need in the shape we need with far less effort. The GitHub GraphQL Explorer is a great tool for getting comfortable with the syntax. There are two main types of requests we can make to a GraphQL server:

  • We can execute a query to read data
  • We can execute a mutation to write data

Queries allow us to specify the objects and fields we want in the response. We can rename them by using aliases. We can parameterize a query by defining variables. We can give variables types and specify whether each one is required or not with ! at the end. There are query features that we didn't cover in this chapter, such as conditionally including fields and the powerful paging capability. In summary, it's an extremely powerful query language!

Mutations share some of the same features as queries, such as...