I've sharpened my React.js skills with CodeAcademy
I like this course from Code Academy. I mean, first of all, it's free. Second, they mix up the teaching with videos, documentation to read, coding checked for accuracy, quizzes and building projects. A solid basic course in React, in my opinion.
Tomorrow it's on the Python. I'll be taking 4 online courses in Python and its Django framework,as well as reading a book on Python. That book was a gift from my old professor, Dr. Cleveland at Keiser University. Incidentally, I picked up my diploma from Keiser today, so look for my showing that off soon. LOL. But as the kids say: It's gonna be an awkward flex, but OK,