I am a non-major, Corin. I took the basic JavaScript course. In this course, I explain difficult concepts such as this, context, etc., which are difficult to explain in detail and abstract to explain simply, so that you can understand them. Of course, since it is a recording of an offline special lecture, it is sometimes difficult to figure out which part the instructor is referring to on the screen. However, considering that, I think it is a good course, and although it is expensive, it is reasonable to think of it as the admission fee for a one-day class held by a famous company like Naver. Thank you for the great course^^