Meta Front end Software Engineer interview questions

I received a call from a recruiter who got me in touch with a university recruiter at Facebook. In the first phone screening we spoke about my past projects and then she asked me some technical questions involving JavaScript. I then had to complete a project (~8 hours). After submitting that I got through to another phone screening with an engineer. It was a pleasant conversation, but I fumbled on the questions asked.

Recruiter asked specific javascript trivia questions on first phone call, which I was not prepared for.