TrueFoundry Frontend Developer Intern interview questions

I had to write code to create deep copy of an object The interviewer posted the question, and it was supposed to be coded on that platform only The second question that I was asked to create a working prototype of the popular Tic-Tac-Toe Game provided that the final product should be presented within 25 minutes A few questions related to theory of Javascript were covered where the interviewer asked questions regarding throttling and diff between == and ===