Swift how to concat Strings

There are two ways to easily concat strings in Swift 
  • Use the + operator
  • Use the special character sequence to replace the String value

import UIKit

let stringA = "Hello "
let stringB = "World!"
//concat strings using the + operator
var newString = stringA + " " + stringB

//concat using special sequence of characters \()
newString = "\(stringA) \(stringB)"