How to pass a tuple argument the best way?

Question

There is a special tupled method available for every function:

val bar2 = (bar _).tupled  // or Function.tupled(bar _)

bar2 takes a tuple of (Int, Int) (same as bar arguments). Now you can say:

bar2(foo())

If your methods were actually functions (notice the val keyword) the syntax is much more pleasant:

val bar = (a: Int, b: Int) => //...
bar.tupled(foo())

See also