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Foreach loop
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=== Scala === {{Main|Scala (programming language)}} <syntaxhighlight lang="Scala"> // return list of modified elements items map { x => doSomething(x) } items map multiplyByTwo for {x <- items} yield doSomething(x) for {x <- items} yield multiplyByTwo(x) // return nothing, just perform action items foreach { x => doSomething(x) } items foreach println for {x <- items} doSomething(x) for {x <- items} println(x) // pattern matching example in for-comprehension for ((key, value) <- someMap) println(s"$key -> $value") </syntaxhighlight>
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