I have posted here:
https://github.com/sabrawer/hello-world/tree/master
a document that shows how to use React without using JSX. This is my learning document, with introductory examples, focusing on using components, but some are fairly complex. My motivation for creating this doc is given in the introduction.
This document focuses on basics and may be useful to someone getting started. I think it shows the fundamentals of React in a clean and structured way. There are 7 examples on CodePen, links given in the document. Comments are solicited.