The React project originated at Facebook ... purists can write React completely in JavaScript if they want; it just takes more code and isn’t as easy to write or read. The second big reason ...

Here, I start at the very beginning so you can get your hands dirty by building a simple React app ... important point to cover first: React isn’t like many JavaScript libraries you might ...

This React Hello World tutorial demonstrates how to get a basic program up and running, but it doesn't stop there. Once your Hello World program works, it's a perfect time to explore how easy it is to ...