[Solved] What is the output of this Swift code?func divide(_ a: Int, by b: Int) -> Int { return a / b } print(divide(10, by: 2)) | Swift

Swift - Functions

What is the output of this Swift code?

func divide(_ a: Int, by b: Int) -> Int {
    return a / b
}

print(divide(10, by: 2))

ARuntime error

B10

CSyntax error

D5

Step-by-Step Solution

Solution:

Step 1: Understand function parameters and call
The first parameter uses _ so no label needed; second parameter label is by.
Step 2: Evaluate the function call and output
Calling divide(10, by: 2) divides 10 by 2, returning 5, which is printed.
Final Answer:
5 -> Option D
Quick Check:
Underscore omits label for first param; output = 5 [OK]

Quick Trick: Use _ to omit label; keep others as is [OK]

Common Mistakes:

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