iOS Developer Interview Questions
How would you calculate the secure hash value for some data?
Suggested approach: Secure hash values use something like SHA-3, which is not the kind of code you'd want to write yourself. Instead, the best approach here is to mention something like Apple's CryptoKit framework, which can do hashing and encryption quickly, efficiently, and correctly.
Estimated difficulty: Intermediate
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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