iOS interview questions reported at Apple

1 questions candidates reported being asked at Apple. Anonymous and unverified, so treat it as a hint of what to expect.

They cover Concurrency. Every question below links to a full answer with the common traps and the follow-ups an interviewer is likely to ask, so you can practise the way the interview goes: answer first, then defend it.

1. How do @MainActor, global actors, isolated and nonisolated work, and how does isolation propagate? 10.4.2