show array elements from last to the first swift code example

Example 1: how to get the last element of an array in swift

if let last = a.last {
   print(last)
}

Example 2: how to get last element of an array in swifg

let myArray = ["Hello!", "World!"]
let capacity = myArray.count
let lastElement = myArray[capacity-1]
print(lastElement)