fm.common

ArrayUtils

object ArrayUtils extends Logging

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  18. def permutations[T](values: Array[Array[T]])(implicit arg0: ClassTag[T]): Array[Array[T]]

    Return all permutations of values of an array of arrays

    Return all permutations of values of an array of arrays

    e.g.: scala> permutations(Array(Array(1,2,3), Array(1,2,3), Array(1,2))).map{ _.mkString(",") }.foreach{println} 1,1,1 1,1,2 1,2,1 1,2,2 1,3,1 1,3,2 2,1,1 2,1,2 2,2,1 2,2,2 2,3,1 2,3,2 3,1,1 3,1,2 3,2,1 3,2,2 3,3,1 3,3,2

    Retain Ordering = false:

    1,1,1 2,1,1 3,1,1 1,2,1 2,2,1 3,2,1 1,3,1 2,3,1 3,3,1 1,1,2 2,1,2 3,1,2 1,2,2 2,2,2 3,2,2 1,3,2 2,3,2 3,3,2

    http://stackoverflow.com/questions/5751091/permutations-of-an-array-of-arrays-of-strings

  19. def permutations[T](values: Iterable[Iterable[T]])(implicit arg0: ClassTag[T]): IndexedSeq[IndexedSeq[T]]

  20. final def synchronized[T0](arg0: ⇒ T0): T0

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