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Scala foreach with _
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| scala> var s: Option[String] = None | |
| scala> s = None | |
| scala> s.foreach {_ => | |
| | s = Some("some") | |
| | } | |
| scala> s | |
| // => ??? | |
| scala> s = None | |
| scala> s.foreach { | |
| | s = Some("some") | |
| | println(_) | |
| | } | |
| scala> s | |
| // => ??? | |
| scala> s = None | |
| scala> s.foreach{ | |
| | s = Some("some") | |
| | (a) => | |
| | } | |
| scala> s | |
| // => ??? |
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