From: "ara.t.howard" <ara.t.howard@...>
Date: 2008-04-13T09:51:06+09:00
Subject: Re: Hash#slice


On Apr 12, 2008, at 5:12 PM, Trans wrote:
> Let see.... Facets:
>
>  class Hash
>
>    # Returns a new hash with only the given keys.
>
>    def slice(*keep_keys)
>      h = {}
>      keep_keys.each do |key|
>        h[key] = fetch(key)
>      end
>      h
>    end
>
>    # Replaces hash with a new hash having only the given keys.
>    # This return the hash of keys removed.
>
>    def slice!(*keep_keys)
>      removed = except(*keep_keys)
>      replace(slice(*keep_keys))
>      removed
>    end
>
>  end

okay, you should add the block form ;-)

headers.slice{|k,| k =~ %r/^HTTP_/}

handy.....

cheers.

a @ http://codeforpeople.com/
--
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