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ScalaWilliam/x.scala

Created December 14, 2013 16:37
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x.scala
scala> val myMap = Map("test"->"best")
myMap: scala.collection.mutable.Map[String,String] = Map(test -> best)
scala> val fn = myMap.lift
fn: String => Option[String] = <function1>
scala> (fn("test"), fn("lest"))
res5: (Option[String], Option[String]) = (Some(best),None)
scala> myMap("lest") = "zest"
scala> (fn("test"), fn("lest"))
res7: (Option[String], Option[String]) = (Some(best),Some(zest))
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