[Solved] What will be the output of this Swift code?func multiply(_ numbers: Int...) -> Int { var result = 1 for num in numbers { result *= num } return result } print(multiply(2, 3, 4)) | Swift

Swift - Functions

What will be the output of this Swift code?

func multiply(_ numbers: Int...) -> Int {
    var result = 1
    for num in numbers {
        result *= num
    }
    return result
}
print(multiply(2, 3, 4))

AError: Cannot multiply variadic parameters

B24

C9

D234

Step-by-Step Solution

Solution:

Step 1: Understand function logic
The function multiplies all passed integers starting from 1.
Step 2: Calculate multiplication
2 * 3 = 6, 6 * 4 = 24, so result is 24.
Final Answer:
24 -> Option B
Quick Check:
Variadic multiplication returns product of all arguments [OK]

Quick Trick: Multiply all variadic arguments by looping [OK]

Common Mistakes:

Adding instead of multiplying
Expecting string concatenation
Thinking variadic cannot be used in calculations

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What will be the output of this Swift code?

Step 1: Understand function logic

Step 2: Calculate multiplication

Final Answer:

Quick Check:

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