From: "Marcel Molina Jr." <marcel@...>
Date: 2006-03-29T22:10:52+09:00
Subject: Re: 'select' semantics

On Wed, Mar 29, 2006 at 05:40:54PM +0900, Srinivas Jonnalagadda wrote:
> Thank you for pointing out the chained 'select'!
> 
> Allow me to apologize for the incorrect problem statement.
> 
> The issue is actually not with downstream 'select's, but with other
> calls that assume a hash-like behaviour on the part of the container.
> 
> Examples include Hash#[] and Hash#each_value.

It's not pretty but...:

>> h = { 0 => 0, 1 => 2, 2 => 3, 4 => 4 }
=> {0=>0, 1=>2, 2=>3, 4=>4}
>> Hash[*h.select { |k,v| k % 2 == 0 }.flatten].each_value {|v|
p v}
0
3
4
=> {0=>0, 2=>3, 4=>4}

marcel
-- 
Marcel Molina Jr. <marcel@vernix.org>