It's 2021 and TypeScript's support for React apps improved by a lot. If you are new to TypeScript and React, you can learn from Amir Ghezelbash how to develop your first React app. In his tutorials, Amir starts from scratch and shows you on a weekly basis how to improve your React and TypeScript skills.
Create React App
React has been created by Facebook and Facebook's development team created an app to bootstrap new React applications. This app is called "Create React App". The "Create React App" project supports TypeScript out of the box. You just have to use its TypeScript template to get started. No previous experience with Babel or Webpack is required.