From: dblack@...
Date: 2002-11-19T21:04:20+09:00
Subject: Re: ruby-dev summary 18711-18810

Hi --

On Tue, 19 Nov 2002, Massimiliano Mirra wrote:

> On Tue, Nov 19, 2002 at 09:06:05AM +0900, dblack@candle.superlink.net wrote:
> > And if map_with_index existed, you could define #zip in terms of it
> > :-)
> >
> >   def zip(*others)
> >     map_with_index {|e,i| [e,others.map{|n| n[i]}]}
> >   end
> >
> > (or something)
>
> That would only work for objects with #[](integer).  But then you
> already said it's ok to you... ;-)

Yes, although I'd be interested in hearing people's ideas about cases
where that wasn't sufficient.  I guess maybe objects which generate a
random sequence of some kind?


David

-- 
David Alan Black
home: dblack@candle.superlink.net
work: blackdav@shu.edu
Web:  http://pirate.shu.edu/~blackdav