Simple Tuple pattern match

TuplePatternMatch.scala

val doubleA1 = ("A", 1)
val doubleA2 = ("A", 2)
val doubleB1 = ("B", 3)

def tupleMatcher(tuple: Tuple2[String, Int]) = tuple match {
    case (_,1) => "matched A1 !"
    case (_,2) => "matched A2 !"
    case (a,b) if(a == "B") => "matched and using a guard for B !"
}

tupleMatcher(doubleA2)
tupleMatcher(doubleB1)