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Alex Rivera
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Is there some standard way in Scala of specifying a function that does nothing, for example when implementing a trait? This works: trait Doer { def doit } val nothingDoer = new Doer { def doit = { } } But perhaps there is some more congenial way of formulating nothingDoer? Edit Some interesting answers have appeared, and I add a little to the question in response. First, it turns out that I could have used a default implementation in Doer. Good tip, but you don't always want that. Second, apparently a more idiomatic way of writing is: val nothingDoer = new Doer { def doit { } } Third, although nobody suggested exactly that, I found that this also seems to work: val nothingDoer = new Doer { def doit = Unit } Is this a good alternative? (The ":Unit" that a few people suggested does not really add anything, I think.)
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