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Question: What books would you recommend to someone who wants to learn Swift?

Suggested approach: Obviously I’d recommend the complete Hacking with Swift series, but the point is that it gives you a chance to talk about how you learned Swift. You can always list Apple’s official Swift guide if you’re desperate. Note: Saying "I didn't use any books, I just worked hard" is a valid answer, but you should at least be aware that such an approach doesn't work for many people.

Important notes:

  • There are over 100 interview questions in the system. Once you've read the question and come up with a suitable answer, try reading my suggested approach below.
  • To see another question just refresh the page; a new question is chosen every second.
  • 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. The handful that are harder are specifically marked – the majority are suitable for junior to intermediate developers.
  • 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.