React.js Fundamentals is a free course, offered along with another course (ES6/7 for React, $45) and some upcoming paid courses in McGinnis' React.js Program. The Learn React.js: The Basics course ...

Everything from YouTube videos to paid online courses and the official React documentation can provide a solid starting point for your education.

As promised in February, Microsoft embraced the wildly popular React JavaScript library in Visual Studio 2015 by providing built-in support for its JSX syntax. So I took it for a spin. It works.