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giuniu/mapBetween2.scala

Created February 24, 2012 02:20
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mapBetween関数sliding版
Raw
mapBetween2.scala
object mapBetween2 {
def main(args:Array[String]) = {
val range = 1 to 10
println(mapBetween(range)(_+_) mkString ",")
println(mapBetween(range)(_*_) mkString ",")
println(mapBetween(range)(_-_) mkString ",")
}
def mapBetween[A,B,T>:A](seq:Seq[A])(f:(T,T)=>B): Iterator[B] = {
seq.sliding(2).map(s=>f(s(0),s(1)))
}
}
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