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  1. import Function.unlift
  2.  
  3. case class T(property: String)
  4.  
  5. object Main extends App {
  6. 	val someIterator = Seq(T("a"), T("b"), T("b"), T("a"), T("b"), T("a")).toIterator
  7.  
  8. 	var foo = 0
  9. 	val xs = someIterator.map(_.property).collect(unlift {
  10. 	  case "a" => foo += 1; None
  11. 	  case "b" => Some("current foo" + foo)
  12. 	})
  13.  
  14. 	println(xs.toList)
  15. }
Success #stdin #stdout 0.37s 322240KB
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Standard input is empty
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List(current foo1, current foo1, current foo2)
https://ideone.com/5cIt0j
language:
Scala (scala 2.12.8)
created:
9 years ago
visibility:
secret

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