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What is a Variadic Parameter?

Variadic Parameter

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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