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ponzao/nullnone.scala

Created September 8, 2010 09:06
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nullnone.scala
val n: Option[Int] = None
val res = n.map(_ + 4).map(_ + 100)
res.getOrElse(0) // => 0
val n: Option[Int] = Some(10)
val res = n.map(_ + 4).map(_ + 100)
res.getOrElse(0) // => 114
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