From: Gennady Bystritsky <Gennady.Bystritsky@...>
Date: 2010-04-01T00:57:57+09:00
Subject: Re: Ruby Koans: will this method ever return :empty?


On Mar 31, 2010, at 8:36 AM, sl4m wrote:

> Thanks guys!  It looks like there's a mistake in the koans then.  I'll
> report it to the author.  I ran this piece of code over and over on irb, but
> could not figure it out.

Wasn't that the idea behind "koans"? I haven't heard about them until your post, however according to http://brandon.dimcheff.com/2009/02/05/how-to-learn-ruby.html:

"... The Koans are essentially a series of failing test cases that you need to figure out how to fix in order to move on to the next step."

From that, my understanding is that a user is supposed to find problems in "koans" and fix them. You found one, good going ;-)

Regards,
Gennady.

> 
> 
> Cheers,
> skim
> 
> On Wed, Mar 31, 2010 at 05:23, Aldric Giacomoni <aldric@trevoke.net> wrote:
> 
>> Aldric Giacomoni wrote:
>>> Steve Kim wrote:
>> 
>>>> Is it possible to have this method return :empty?
>> 
>>> 
>>> class MessageCatcher
>>>  def add_a_payload *args
>>>    args.empty? :empty : args
>>>  end
>>> end
>>> 
>>> args.empty? [:empty] : args
>>> 
>> 
>> I'd appreciate it if no one mentioned that I forgot the '?' twice! I am
>> so ashamed.
>> 
>> args.empty? ? :empty : args
>> args.empty? ? [:empty] : args
>> --
>> Posted via http://www.ruby-forum.com/.
>> 
>>