From: Sean O'Halpin <sean.ohalpin@...>
Date: 2006-07-05T12:13:55+09:00
Subject: Re: Parallel Array

On 7/5/06, Pe�a, Botp <botp@delmonte-phil.com> wrote:
>
> i do not go for faster, but maybe simpler to the eye,
>
> c=[]
> a.each_index{|i| c << a[i]+b[i]}
>
> kind regards -botp
>
I like this:

  a.zip(b).map{|(x,y)| x + y}

Not as fast as the Array.new(size) version, but the block doesn't need
to know which arrays it's operating on.

BTW, does anyone know why zip with a block returns nil? It would be
handy to have it map.

Regards,
Sean