Would you consider yourself a Swift expert?
This is a trick question. Because Swift is still being improved, the only true “Swift Experts” are the people who developed it at Apple. Even if you’ve produced lots of great apps and mastered a number of advanced courses and tutorials, you simply can’t be an expert at this point. Remember, Swift has only been around since June. If your interviewer asks this, argue that you could not possibly be an expert until the language is finished. Explain how you, like most other iOS Developers, are constantly learning.