From: Adam Keys <adam@...>
Date: 2005-04-22T20:44:12+09:00
Subject: Re: for .. in .. else?

On Apr 21, 2005, at 5:46 PM, Hal Fulton wrote:
> FWIW I'll offer this (untested) alternative:
>
>  <table>
>    <tr><th>Songs</th></tr>
>    <% unless song_list.each do |song|%>
>      <tr><td><%= song.name %></td></tr>
>      <% end.empty? %>
>      <tr><td>no songs!</td></tr>
>    <% end %>
>    </tr>
>  </table>

A few weeks ago I was on a crusade to not create temporary Arrays and 
Hashes.  I wrote a bit of code something like this:

ary.reject do |item|
   item.some_predicate?
end.each do |doodad|
   doodad.do_something
end

I was showing it to a non-Rubyist and he thought it was a little hard 
to read.  I agreed it may be a little too clever for its own good.  
Obviously Hal doesn't think so :).  Does anyone else have strong 
feelings on code like the above?

--
~akk
http://therealadam.com