Get head item and tail items from scala list

Question

Is there a method in scala to get the (single) head element of a List or Seq and the (collection) tail of the list? I know there\'s

def splitAt(n: Int): (Lis         


        

Answer 1

You can use pattern matching:

val hd::tail = List(1,2,3,4,5)
//hd: Int = 1
//tail: List[Int] = List(2, 3, 4, 5) 

Or just .head/.tail methods:

val hd = foo.head
// hd: Int = 1
val hdOpt = foo.headOption
// hd: Option[Int] = Some(1)
val tl = foo.tail
// tl: List[Int] = List(2, 3, 4)