AppsFlyer interview questions

I had a phone call with the recruiter followed by a zoom interview with a senior engineer. (This is not the full process obviously, I didn't get yet to the next steps)

first interview was on js basics, about closures, event loop, hoisting nothing special there. and then a question about race condition in react, there was a select component with useEffect that called for an api request then put the data in an object. when the user selected a value it made the request. after that the second interview had two algorithmic questions and design