In Scala, if I have a function f(X, Y, Z) is it possible to pass a variable W that will represent (X, Y, Z) so I can use f(W) instead of f(X,Y,Z)? If so, how can this be done?
1 Answers
If you mean to pass a tuple or case class instead of the three parameters. Then yes, you can.
First, If it is a function, you can just: f.tupled(tuple).
If it is a method then: (m _).tupled(tuple). _(it is basically the same, but using eta-expansion to turn the method into a function).
If you have a case class instead of a tuple, you can to turn an instance of it into a tuple with this: W.unapply(w).get (where W is the companion object of the case class, and w is the instance).
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