From: Joel VanderWerf <vjoel@...>
Date: 2008-02-14T05:32:30+09:00
Subject: Re: ruby wish-list

Roger Pack wrote:
> hash -= 'a' # instead of delete

That would be the same as

  hash = hash - 'a'

so (whatever Hash#- does) it involves making a copy of the hash and 
changing that instead, whereas #delete is destructive.

-- 
        vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407