//Substring var strH = "Hello Swift Programmers" var index = strH.index(strH.startIndex, offsetBy: 6) strH.removeSubrange(strH.startIndex..<index)
//Substring var strH = "Hello Swift Programmers" var index = strH.index(strH.startIndex, offsetBy: 6) strH.removeSubrange(strH.startIndex..<index)