Question

I have the following code:

val userName = users.get(userID) match {
  case Some(user) => user.name
  case None => "Invalid User ID"
}

Is there a more concise way of writing this?

I was wondering if there was something similar to getOrElse that would let me apply a function if it is successful (to extract the user name), or return a plain value otherwise.

Answer 1

Not in one method call, but in two:

users.get(userID).map(_.name).getOrElse("Invalid User ID")

Oops, apparently Option.fold was finally added in Scala 2.10, according to @sschaef’s answer.