//Zip function (Sequence)

let array1 = ["one", "two", "three", "four", "five"]
let array2 = 1...5

let zipSequence = zip(array1, array2)
type(of: zipSequence)   //Zip2Sequence<Array<String>, CountableClosedRange<Int>>.Type

zipSequence.forEach { (key, value) in
    print("key: \(key), value: \(value)")
}

//key: one, value: 1
//key: two, value: 2
//key: three, value: 3
//key: four, value: 4
//key: five, value: 5