Variadic Parameter

• Accepts zero or more values of a specific type.
• Create by inserting three periods after the parameters type name.
• Values of variadic parameter are accessible within the function body through an array of the defined type.
• A function can only have ONE variadic parameter

func sum(_ numbers: Int...) -> Int {
    var total: Int = 0

    for number in numbers {
        total += number
    }

    return total
}

sum(1, 2, 3, 4, 5)		
// Returns 15 - Sum of the numbers

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