iOS Developer Interview Questions
How does Swift handle memory management?
Suggested approach: Jump straight in with ARC – get to the point and focus on it, explaining about retain, release, and retain counts. If you want to also talk about unowned and weak, or perhaps reference counting for classes, this is also the place.
For bonus points, talk about places that aren't automatic, such as using an autorelease pool inside tight loops.
Estimated difficulty: Advanced
See the full list of iOS interview questions
Important notes
- There are over 150 interview questions in the system. Once you've read the question and come up with a suitable answer, try reading my suggested approach and see if it helps you add more detail.
- These questions are not designed to be hard; a good interviewer is more interested in generating discussion that lets your ability and interests shine through.
- If you answer a question with "yes" or "no" you've missed the point – interviewers prefer you to provide reasoning, explanation, or detail, so try to elaborate with examples!
- If you're looking for detailed technical questions about the language, you should try my Swift tests instead – there are multiple challenges that will work your brain hard.
- For a whole series of coding challenges, I wrote the perfect book for you: Swift Coding Challenges.
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