From: Phlip <phlip2005@...>
Date: 2009-03-09T21:28:16+09:00
Subject: Re: Where's the best version of Hash#pass and Hash#block?

Matthias Reitinger wrote:

>> Why doesn't slice do the flatten trick here?
>>
>>      keep_keys = [keep_keys].flatten
> 
> It would lead to ambiguities if you additionally allowed passing an 
> array of keys.  Consider:

I had already considered the system that only flattens the first depth, but I 
forgot to mention it...