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jrwest/lenses-1-11.scala

Created February 9, 2012 22:55
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lenses-1-11.scala
def updateCondition(toyBox: ToyBox, name: String, newCondition: ToyCondition): ToyBox = {
toyBox.toys.get(name)
.map(t => toys.mod(toyBox, _ + (name -> condition.set(t, newCondition)))
.getOrElse(toyBox)
}
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