React is just JavaScript – YLD Engineering Blog – Medium
I like that this introduction to React doesn’t assume any knowledge (or desire) to create an entire app from scratch through command line invocations. Instead, here’s a clear explanation of how you can add React—which is, after all, some JavaScript—to an existing project. Oh, and you can write your CSS in CSS.
(Caveat: because everything’s happening in script elements in the browser, what’s outlined here will only do client-side rendering.)
