Which of the following correctly defines a Swift function that returns a tuple with named elements width and height as Doubles?

easy📝 Conceptual Q2 of 15

Swift - Functions

Which of the following correctly defines a Swift function that returns a tuple with named elements width and height as Doubles?

Afunc getSize() -> (width: Double, height: Double) { return [10.0, 20.0] }

Bfunc getSize() -> (Double width, Double height) { return (10.0, 20.0) }

Cfunc getSize() -> (width: Double, height: Double) { return width: 10.0, height: 20.0 }

Dfunc getSize() -> (width: Double, height: Double) { return (10.0, 20.0) }

Step-by-Step Solution

Solution:

Step 1: Review tuple syntax
Named tuple elements are declared as (name: Type, name: Type).
Step 2: Check return statement
Return a tuple with values matching the declared names and types.
Final Answer:
func getSize() -> (width: Double, height: Double) { return (10.0, 20.0) } -> Option D
Quick Check:
Named tuple syntax uses (name: Type) [OK]

Quick Trick: Use (name: Type) for named tuple elements [OK]

Common Mistakes:

Master "Functions" in Swift

9 interactive learning modes - each teaches the same concept differently

Want More Practice?

15+ quiz questions · All difficulty levels · Free

More Swift Quizzes