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Jan 23rd, 2019
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  1. sealed trait Order
  2. final case object Asc extends Order
  3. final case object Desc extends Order
  4.  
  5. val ord:Order = Asc
  6. val ord2:Order = Desc
  7.  
  8. ord match {
  9. case Asc => ???
  10. case Desc => ???
  11. }
  12.  
  13. sealed trait order
  14. case object asc extends order
  15. case object desc extends order
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