React in Codepen

Hello! I’ve been trying to learn react but I don’t quite understand where I’m rendering it from (excuse me if that isn’t proper terminology). I’m trying to run a simple “hello world” program using react in codepen but it doesn’t seem to want to work. I’ve selected both “react” and “reactDOM” in the settings of the JavaScript file but i’m getting nothing. Not sure I understand what’s supposed to be happening on a conceptual level so any help would appreciated! Project:

I recommend using instead.

You can instantly setup a react environment and go with it.

Cool, I’ll give that a try!