Question

How to swap two characters in string by index with Swift

Answer 1

func swapCharacters(s: String, index1: Int, index2: Int) -> String {
    var characters = Array(s)
    
    characters.swapAt(index1, index2)

    return String(characters)
}


let s = "Swift programming language"

print(s);

print(swapCharacters(s: s, index1: 4, index2: 9)) 





/*
run:
  
Swift programming language
Swifg protramming language
  
*/

 

70+ SQL courses for beginners and professionals