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stew/gist:8318495

Created January 8, 2014 15:27
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gistfile1.txt
scala> List(BigDecimal(1).some, BigDecimal(13).some, BigDecimal(12).some).sequence.map(_.sum)
res14: Option[scala.math.BigDecimal] = Some(26)
scala> List(BigDecimal(1).some, None, BigDecimal(12).some).sequence.map(_.sum)
res15: Option[scala.math.BigDecimal] = None
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