Question: Explain optionals in Swift.Answer: Optionals are a type in Swift that represents either a wrapped value or nil, indicating the absence of a value. |
복습용 저장
이 항목을 북마크하거나, 어렵게 표시하거나, 복습 세트에 넣을 수 있습니다.
도움이 되었나요? 예 아니요
Most helpful rated by users:
- What is Swift?
- Explain optionals in Swift.
- What is the difference between \'let\' and \'var\' in Swift?
- What are property observers in Swift?
- What is the purpose of the \'static\' keyword in Swift?