I listened to the lectures well over several days. Compared to the lecture time, it was quite dense, and the explanations were so good that I couldn't skip over each sentence. Unlike other lectures, the lecturer's appearance was not recorded on the webcam, but I liked that part because I could concentrate better. I learned React, but I didn't understand it well, so I listened to this lecture again, and it was so good because it fit me so well. I also purchased the Redux lecture with a different ID, so please continue to listen to me.^^