I did start some of the exercises there when I did not know any JS whatsoever. Thought it was alright but I can’t say much of it stuck very well. For me the best way to learn a subject matter is to have an idea about something I want to create and then research and try to get there. But I suppose that won’t work for everyone. First thing I would recommend anyone that’s completely new to JS would be to read through the main concepts on W3 schools.