The words "great lecture...!" came out right away.. I studied front-end development, but is this fun? Is it suitable for me? I wondered if it would be long or short, but after listening to this lecture, I decided, "Oh, I have to become a back-end developer." It was so fun. Just listen to it unconditionally. You won't regret it.. I listened leisurely, so it took about 10 days, but I think it's the first time I've studied a language in such a short period of time! It's all thanks to Yeonghan-nim...ㅠㅠ