Meta Frontend Engineer interview questions

I applied through a website. The process took 2 months. I interviewed at Meta. I had a phone call with recruiter. Then a passed to coding interview. Interview process is glad.

Applied online. First received a short HR phone interview, which is non-technical and doesn't really require any preparation. The second interview was a technical one and related to Javascript. The first one asks to implement an event emitter, and the second one asks to implement a debounce function.