juniorSwift
What are arrays in Swift?
Updated May 17, 2026
Short answer
Arrays store ordered collections of values.
Deep explanation
Swift arrays are strongly typed and can grow dynamically. They support operations like append, remove, and iteration.
Real-world example
Used to store list of messages in a chat app.
Common mistakes
- Mixing types in arrays due to lack of generics understanding.
Follow-up questions
- Are arrays value or reference types?
- What is array slicing?