Swift Interview Questions and Answers
Ques 26. What is the purpose of the 'static' keyword in Swift?
The 'static' keyword in Swift is used to define type-level properties and methods that are associated with the type itself, rather than an instance of the type.
Ques 27. Explain the concept of type casting in Swift.
Type casting is the process of converting one type to another, and it can be done in Swift using 'as', 'as?', and 'as!' operators.
Ques 28. What is the Swift Package Manager (SPM) used for?
Swift Package Manager is a tool for managing the distribution of Swift code as source or binary packages.
Ques 29. How do you create a custom delegate in Swift?
To create a custom delegate in Swift, define a protocol, adopt it in the delegating class, and use optional delegate methods to notify the delegate of events.
Ques 30. What are the key differences between Swift and Objective-C?
Swift is a modern, safer, and more concise language compared to Objective-C. It introduces optionals, type inference, generics, and is memory-safe with Automatic Reference Counting (ARC).
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