From: trans <transfire@...>
Date: 2009-03-09T22:13:52+09:00
Subject: Re: Where's the best version of Hash#pass and Hash#block?



On Mar 9, 8:23 am, Phlip <phlip2...@gmail.com> wrote:
> Matthias Reitinger wrote:
> > Here's my shot at it:
>
> >   class Hash
> >     def pass(*keys)
> >       Hash[select {|k,v| keys.include? k}]
> >     end
>
> >     def block(*keys)
> >       reject {|k,v| keys.include? k}
> >     end
> >   end
>
> Dude that's so lean I'm tossing facets and going with it. Tx!

#pass doesn't seem to work, at least not in 1.8.

More importantly, Facets implementation is the way it is b/c it is
fast. Code elegance is nice, but you won't be looking at the code when
you are using it.

               user     system      total        real
except   0.150000   0.010000   0.160000 (  0.155591)
block     8.870000   0.020000   8.890000 (  8.892466)

T.