simple option

simple option.scala

val n = None                              //> n  : None.type = None
val s = Some(1)                           //> s  : Some[Int] = Some(1)

val o = Option(3)                         //> o  : Option[Int] = Some(3)
o match {
  case Some(x) => println("Count to :" + x)
  case None => println("Dont count")
}                                               //> Count to :3
  
val s2 = Some(null)                             //> s2  : Some[Null] = Some(null)
val o2 = Option(null)                           //> o2  : Option[Null] = None
  
val s3 = Some()                           //> s3  : Some[Unit] = Some(())
val o3 = Option()                         //> o3  : Option[Unit] = Some(())