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halcat0x15a/MaxValue.scala

Created June 7, 2013 09:13
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MaxValue.scala
import scalaz._, Scalaz._
object MaxValue extends App {
val a = Map(1 -> 10, 2 -> 5)
val b = Map(2 -> 10, 3 -> 7)
val c = a.mapValues(Tags.MaxVal) |+| b.mapValues(Tags.MaxVal)
(c: Map[Int, Int]) assert_=== Map(1 -> 10, 2 -> 10, 3 -> 7)
}
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