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ramannanda9/filter.scala

Last active July 31, 2017 19:51
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filter in scala
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filter.scala
def filter[K](arr: List[K], f: K => Boolean): List[K] = arr match {
case Nil => arr
case list: List[K] => if (f(list.head)) list.head :: filter(list.tail, f) else filter(list.tail, f)
}
val listToFilter = 2 :: 5 :: Nil
listToFilter.filter(_ > 2)
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