I was using webpack vaguely, but this was a huge help in understanding webpack. I'm using webpack, but I still don't know what's going on... I really want to recommend this 100 times to people like me who say that. It was so interesting that I stayed up late at night watching it. I watched the advanced webpack first, and I haven't seen Babel or Lint yet, but I'll watch the rest of the lectures! Thank you so much for making such a great lecture. :D I trust and watch Kim Jeong-hwan's lectures...