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iOS Developer Interview Questions

What are the pros and cons of using viewWithTag()?

Suggested approach: The only real pro is that it’s an easy fix to finding a view, used particularly when you don’t want to bother creating a custom table view cell class. However, it’s obviously flaky because the tag number might change in the future, and it’s never nice having magic numbers in your code. Use with care!

  Estimated difficulty: Easy

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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