From: Serg Koren <skoren@...>
Date: 2008-02-12T05:47:49+09:00
Subject: Partial index hash search?

What's the best way to find all occurances of a string in a hash's  
index?

That is,

x = { 'Hello' => 1, 'Goodbye' => 2, 'Hello there' => 3}

How do I most efficiently get  1 and 3 to return on a search for  
'Hello' in the index of the hash?  I know I can iterate over the  
index, but is there a better way?

Thanks.