DefinedValuesMapExtension

DefinedValuesMapExtension.sc

object workspace {

  implicit class DefinedValuesMapExtension[K >: Null, V](map: Map[K, Option[V]]) {
    def toDefinedValuesMap: Map[K, V] = map.collect { case (key, value) if value.isDefined => (key, value.get) }
  }
  

  val mapWithOptionalValues: Map[String, Option[Int]] = Map(
    "foo" -> Some(20),
    "bar" -> None,
    "baz" -> Some(100)
  )

  val mapWithDefinedValues = mapWithOptionalValues.toDefinedValuesMap
  
  // defined class DefinedValuesMapExtension
  // mapWithOptionalValues: Map[String,Option[Int]] = Map(foo -> Some(20), bar -> None, baz -> Some(100))
  // mapWithDefinedValues: Map[String,Int] = Map(foo -> 20, baz -> 100)
}