In Scala how do I remove duplicates from a list?

Question

Suppose I have

val dirty = List(\"a\", \"b\", \"a\", \"c\")

Is there a list operation that returns \"a\", \"b\", \"c\"

Answer 1

scala.collection.immutable.List now has a .distinct method.

So calling dirty.distinct is now possible without converting to a Set or Seq.