when there are 2 default arguments defined for both parameters of method, is there a way to call this method and pass it argumen

Question

when there are 2 default arguments defined for both parameters of method, is there a way to call this method and pass it argument for the second parameter only?
e.g.
def myfunc (x=1, y=2) { x+y }

how to call myfunc and pass it only y?

Answer 1

AFAIK, you can pass either both x and y, or only x, but not only y, due to their respective positions in the formal parameter list.

Answer 2

it's actually isn't possible for ruby version < 2. here are the details: http://stackoverflow.com/questions/16322706/optional-arguments-with-default-value-in-ruby