How do I write a shorthand for a datatype in Scala -
how write shorthand datatype? example. lets instead of list[integer] , rather type integers instead of this def processnumbers(input:list[integer]):list[integer] = ... to def processnumbers(input:integers):integers = ... is possible? thanks yes, can type alias . type integers = list[int] // scala.int preferred on java.lang.integer that being said, isn't use them. list[int] clear other scala developers, wheres type integers provides no information , detract readability of code on time. a use of type aliases improve code's readability though like type userid = int def processusers(ids: list[userid]): foo in case provides information reader vs def processusers(ids: list[int]): foo using kind of type alias allow gradually make code more type-safe on time changing definition type alias value class . case class userid(value: int) extends anyval you won't need change method signatures of having " userid ", let compiler assi...
