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Created February 22, 2014 01:04
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Removing elements from immutable maps
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gistfile1.scala
scala> Map(1 -> 2, 2 -> 3)
res0: scala.collection.immutable.Map[Int,Int] = Map(1 -> 2, 2 -> 3)
scala> res0 - 1
res1: scala.collection.immutable.Map[Int,Int] = Map(2 -> 3)
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