From: ThoML <micathom@...>
Date: 2008-03-04T15:19:54+09:00
Subject: Re: Why is this not implemented in Ruby

Apart from the solutions already proposes you could also do:

> irb(main):005:0> def aProc(a=5,b=6,c=7)

def aProc(a=5,b=nil,c=nil)
b ||= 6
c ||= 7
...
end

and then instead of:

> irb(main):009:0> aProc(1,,3)

aProc(1, nil, 3)

If you want to use that many optional arguments that have no "natural"
order, I think though you should use a hash instead.