Why does the definition of Array.map in Scala is "throw new Error()"

Posted by Oscar Reyes on Stack Overflow See other posts from Stack Overflow or by Oscar Reyes
Published on 2010-05-21T19:09:02Z Indexed on 2010/05/21 19:10 UTC
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override def map[B](f: A => B): Array[B] = throw new Error()

scala> val name : Array[String]= new Array(1)
name: Array[String] = Array(null)
scala> name(0)="Oscar"
scala> val x = name.map {  ( s: String ) => s.toUpperCase }
x: Array[java.lang.String] = Array(OSCAR)

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