Javascript tutorial question

so quick queston. freecodecamp yt channel has 2 tutorials for JS. one is about 3 hours long and other one is 8. are they the same or the the second one(longer 8hrs) like a part 2 ?

Video tutorials on the channel are all self-standing, they are also probably from different tutors. Check them out and see which one you prefer, or follow both, it may be easier to understand if you get the explanation in different ways