How to pattern match multiple values in Scala?

Question

Let's say I want to handle multiple return values from a remote service using the same code. I don't know how to express this in Scala:

code match {   case "1" => // Whatever   case "2" => // Same whatever   case "3" => // Ah, something different } 

I know I can use Extract Method and call that, but there's still repetition in the call. If I were using Ruby, I'd write it like this:

case code when "1", "2"   # Whatever when "3"   # Ah, something different end 

Note that I simplified the example, thus I don't want to pattern match on regular expressions or some such. The match values are actually complex values.

Answer 1

You can do:

code match {   case "1" | "2" => // whatever   case "3" => } 

Note that you cannot bind parts of the pattern to names - you can't do this currently:

code match {   case Left(x) | Right(x) =>   case null => }