How to reverse array in Swift without using “.reverse()”?

Question

I have array and need to reverse it without Array.reverse method, only with a for loop.

var names:[String] = [\"Apple\", \"Microsof         


        

Answer 1

// Swap the first index with the last index.
// [1, 2, 3, 4, 5] -> pointer on one = array[0] and two = array.count - 1
// After first swap+loop increase the pointer one and decrease pointer two until
// conditional is not true. 

func reverseInteger(array: [Int]) -> [Int]{
        var array = array
        var first = 0
        var last = array.count - 1
        while first < last {
            array.swapAt(first, last)
            first += 1
            last -= 1
        }
        return array
    }

input-> [1, 2, 3, 4, 5] return->[5, 4, 3, 2, 1]