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iOS Developer Interview Questions

What are one-sided ranges and when would you use them?

Suggested approach: As always, start with a simple definition that clarifies the difference between regular ranges, then provide a practical example.

So, you might say that one-sided ranges are ranges where you don’t specify the start or end of the range, meaning that Swift will automatically make the range start from the start of the collection or the end of the collection. They are useful when you want to read from a certain position to the end of a collection, such as if you want to skip the first 10 users in an array.

  Estimated difficulty: Intermediate

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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.

Related questions

See the full list of iOS interview questions

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