Getting started here: https://daynhauhoc.com/t/thu-thach-lap-trinh-javascript-ve-1-thu-tuong-don-gian-nhung-roi-nao/120552
We post codes of competitors at: https://js-challenge.khoancatbetong.com
If code has issues, the competitors will update code here, with [compitor].js file. Compititor name is Day Nhau Hoc forum nickname.