Professional programming. React 17. Web application development with JavaScript

The book is devoted to programming web applications in JavaScript

using the popular React 17 web frame. An introductory course is given, at the same time, describing the development of a simple web application-a list of planned cases. Basic tools are described: creating and building a React project, writing components, JSX language, transmission of data between components and creating web forms. Useful additional libraries are considered: React Router (navigation), Redux, React Redux and Redux Toolkit (centralized data storage), Formik (rapid development of web-forms), YUP (validation), React Reveal (animation effects), and others. On the separation of code, processing of errors, debugging means, publication of a finished web application and rendering on the server side. The electronic archive on the publishing house contains the code described in the book of the web application and other useful files