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Ingy döt Net 2023-07-01 11:58:00 -04:00
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commit cb5bb5e222
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Task/Null-object/Scala/null-object.scala Normal file
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scala> Nil
res0: scala.collection.immutable.Nil.type = List()
scala> Nil == List()
res1: Boolean = true
scala> Null
<console>:8: error: not found: value Null
Null
^
scala> null
res3: Null = null
scala> None
res4: None.type = None
scala> Unit
res5: Unit.type = object scala.Unit
scala> val a = println()
a: Unit = ()