String, list operation, map, toList

gistfile1.scala

object ScalaHackSession {
  //map and toList
  val message = "Hello, Scala"                    //> message  : String = Hello, Scala
  message.map(_ + "-")                            //> res0: scala.collection.immutable.IndexedSeq[String] = Vector(H-, e-, l-, l-, 
                                                  //| o-, ,-, " -", S-, c-, a-, l-, a-)
  message.toList                                  //> res1: List[Char] = List(H, e, l, l, o, ,,  , S, c, a, l, a)
  //palindrome: head, reverse, and splitAt
  val palindrome = "Never odd or even"            //> palindrome  : String = Never odd or even
  palindrome.head                                 //> res2: Char = N
  palindrome.reverse                              //> res3: String = neve ro ddo reveN
  palindrome.splitAt(11)._2.reverse               //> res4: String = neve r
}