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Comment by desdiv | Hacker News Reader

FYI your Scala example doesn't work.

    Welcome to Scala version 2.11.6 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_45).

    scala> var h:Option[String] = "Hello".some
    <console>:7: error: value some is not a member of String
       var h:Option[String] = "Hello".some

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The author is using the scalaz syntax, you could substitute it for the "vanilla" syntax:

    var h: Option[String] = Option("Hello")

or import scalaz (in case you have it in your classpath etc):

    import scalaz._, Scalaz._
    var h: Option[String] = "Hello".some

Sorry, as the other comment mentioned this is Scalaz as it makes code IMHO a little more readable. The example was more about the h:Option[String] part.

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