Multiple replacing emoji decimal to emoji hexadecimal use array swift 4

This below example how to replace data You need to loop, looking to see what the range of the substring 

var s = "The Pep Boys are §§§, §§§, and §§§."

var arr = ["Manny", "Moe", "Jack"]

while let r = s.range(of:"§§§") {

    s.replaceSubrange(r, with: arr.removeFirst())

}

 print("\(s)") // The Pep Boys are Manny, Moe, and Jack.

Or use range 

 var s = "The Pep Boys are :§§§;, :§§§;, and :§§§;."

 var arr = ["Manny", "Moe", "

 while let r = s.range(of: "\\:(.*?)\\;", options: .regularExpression, range: nil, locale:       s.replaceSubrange(r, with: arr.removeFirst())

        }

        

        print("\(s)")