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F# also has: let foo : obj = failwith "" match foo with | :? SomeType as blah -> // use blah : SomeType (You're allowed to just use the identifie

• halfmatthalfcat 4y ago
  As does Scala: match thing { case a: String => // use a as string case a @ MyCaseClass(b: String, c, d) => // use a as the instance of MyCaseClass or use b as a string }