I got through the basic HTML and JavaScript certifications just by writing code and debugging. With the Redux/React/JavaScript certification, I feel a need to read theory from a textbook, or else perhaps watch a tutorial video. I prefer to read books, but I can watch a video if that is the standard way of proceeding.
I know FreeCodeCamp has many videos on YouTube. However, I am currently studying React/Redux/JavaScript, and most of the videos that I see on YouTube seem to be about Python.
Am I looking in the wrong places? Does FreeCodeCamp put JavaScript videos on YouTube? Is there a standard written textbook that I should be reading instead.