From: Joel VanderWerf <joelvanderwerf@...>
Date: 2010-08-05T05:47:31+09:00
Subject: Re: Default arguments problem

Amir Ebrahimifard wrote:
> Hi
> How can I have a method with 3 arguments so that only second argument is
> a default
> argument for example:
> 
> def sum(p,q=2,r)
>  puts p+q+r
> end
> 
> (I want to use from this method with only 2 arguments : first argument
> and third argument )

Only with ruby 1.9:

$ irb19
 >> def sum(p,q=2,r)
 >>  puts p+q+r
 >> end
=> nil
 >> sum(1,2,3)
6
=> nil
 >> sum(1,3)
6
=> nil
 >>