scala / clojure: pattern matching with rest

with-rest.clj

repl> (let [[a b] [1 41 3 4 5 6 7 8]] 
        (+ a b))
42

;; anywhere, function params? sure!

(defn sum [[a b]]              ;; define a function (inner brackets fetch first two elements)
  (+ a b))        

(sum [1 41 3 4 5 6 7 8 9])     ;; use it
42

withRest.scala

def withRest ( s: Any ) = s match {
  case Seq( a, b, _ * ) => ( a, b )
  case _ => println( "kaBoom!" )
}

withRest( Seq( 1, 2, 3, 4, 5, 6, 7, 8 ) ) shouldBe ( 1, 2 )

//OR simpler

val Seq( a, b, _ * ) = Seq( 1, 2, 3, 4, 5, 6, 7, 8 )

a shouldBe 1
b shouldBe 2