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)


In this chapter we learned a couple of different ways we can create a React and TypeScript project. The more manual way taught us just how many moving parts there are. We'll use create-react-app regularly to quickly create our apps in this book.

We learned how all React class components have a render method that returns JSX, which tells React what to display. JSX is very flexible and powerful, because JavaScript expressions can be mixed in with HTML.

We learned how components can be configured using props, and how we can add TypeScript types to props, to help prevent mistakes when consuming components.

Next, we learnt how components manage what is rendered and how they behave using state. Like props, state in a React and TypeScript app is strongly typed. We initialize state in the constructor, and change it via a setState method.

We also learnt about event handlers...