[Solved] Find the error in this Swift function:func printNumbers(_ nums: Int..., extra: Int) { for n in nums { print(n) } print(extra) } | Swift

Swift - Functions

Find the error in this Swift function:

func printNumbers(_ nums: Int..., extra: Int) {
    for n in nums {
        print(n)
    }
    print(extra)
}

ANo error, function is valid

BCannot have more than one parameter

CVariadic parameter must be the last parameter

DMissing return type

Step-by-Step Solution

Solution:

Step 1: Recall Swift variadic parameter rules
Variadic parameter must be the last parameter in the function declaration.
Step 2: Analyze function parameters
Here, variadic parameter is first, followed by 'extra', which is invalid.
Final Answer:
Variadic parameter must be the last parameter -> Option C
Quick Check:
Variadic always last parameter [OK]

Quick Trick: Variadic parameter must be last in parameter list [OK]

Common Mistakes:

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