Introduction
I have used Swift for windows 1.9 for debugging purpose. But you can use any Swift programming language compiler as per your availability.
Write a Swift program to move the last two characters of a given string to the start string
func swapletters(_ str1: String) -> String {
var chars = str1.characters
let last_char = chars.removeLast()
let rest_part = chars.removeLast()
chars.insert(last_char, at: chars.startIndex)
chars.insert(rest_part, at: chars.startIndex)
return String(chars)
}
print(swapletters("tech"))
print(swapletters("study"))Result
