If you know React or Vue, you can probably get a general idea of what it's like just from this lecture. Although there are differences in how the state is handled, I felt that the implementation method was quite similar. It was neatly organized and good to listen to, but I don't think I would recommend it if you're new to web front-end. If I didn't have background knowledge, I don't think I would have been able to follow it at all.