I completed the course while participating in the first time attack. First of all, while participating in the time attack, he was quick to respond, but he also taught me well what I didn't know. Also, I was able to study by simply summarizing what I learned during the week. In particular, the process of creating a single web while covering both the front and back-end parts was not easy, but it gave me a sense of satisfaction. I highly recommend it to those who want to study react and node. (If you have an error related to the code or a problem related to the version, It would be good to refer to the git part of the course https://github.com/ZeroCho/react-nodebird/tree/master/intersection)