Scala Library: scala.Null
scala.Null
abstract final class Null extends AnyRefNull is - together with scala.Nothing - at the bottom of the Scala type
hierarchy.
Null is a subtype of all reference types; its only instance is the null
reference. Since Null is not a subtype of value types, null is not a member
of any such type. For instance, it is not possible to assign null to a
variable of type scala.Int.
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