Scala pattern match

gistfile1.txt

val vec1 = Vector(1, 2, 3)
val vec2 = Vector(3, 4, 5, 6, 7, 8)
val vec3 = Vector("foo", "bar", "baz")
val vec4 = Vector("one", Map("one" -> 1, "two" -> 2))

def match_vec(vec: Vector[Any]) {
    vec match {
        case Vector(_, _, 3) => println("Vector ends in 3!")
        case Vector(3, _*) => println("Vector starts with three, has any number of elements!")
        case Vector(_, "bar", _) => println("String Vector!")
        case _ => println("Fallthrough case...")
    }
}

scala> match_vec(vec1)
Vector ends in 3!

scala> match_vec(vec2)
Vector starts with three, has any number of elements!

scala> match_vec(vec3)
String Vector!

scala> match_vec(vec4)
Fallthrough case...