From: Gennady Bystritsky <Gennady.Bystritsky@...>
Date: 2010-03-31T16:08:09+09:00
Subject: Re: Ruby Koans: will this method ever return :empty?


On Mar 30, 2010, at 11:38 PM, sl4m wrote:

> I'm having trouble understanding the return statement for this particular
> koan:
> 
> class MessageCatcher
>  def add_a_payload(*args)

In this case (with *) args is always an array that holds all the arguments passed to the method, it being empty when no arguments are given. So it should be:

>    return :empty unless args
    return :empty if args.empty?

>    args
>  end
> end
> 
> mc = MessageCatcher.new
> mc.add_a_payload # []
> mc.add_a_payload(1) # [1]
> 
> Is it possible to have this method return :empty?
> 
> 
> skim