From: Phrogz <gavin@...>
Date: 2007-01-22T00:15:06+09:00
Subject: Re: Hash pairs at?

Phrogz wrote:
> Trans wrote:
> > Seems like there should be a mehtod for this:
> class Hash
>   def entries( *keys )
>     self.class[ *keys.zip( values_at( *keys ) ).flatten ]
>   end
> end

Oh, and yes: I'd like a method like this in the core, also. Preferably
with a more elegant, faster implementation than the above. I find this
quite useful sometimes. A recent example that comes to mind is taking
the params hash in Rails and specifying a specific subset of the
populated values to pass on to another method.