From: Phrogz <gavin@...>
Date: 2006-11-29T00:10:10+09:00
Subject: Re: find index of first non zeo value in array

Devin Mullins wrote:
> Phrogz wrote:
> > Hrm, I assumed that using #each_with_index would be speedier, since
> > there would be no Ruby call to the #[] method of the array for each
> > iteration. Instead, it's much slower:
> Hrm, that is odd. I assure you it was purely by accident that I picked
> the faster implementation. Maybe it has something to do with
> each_with_index being implemented by Enumerable, vice Array? I dunno
> why.... should just delegate to each, and keep a counter around.

My totally uninformed guess is that it has something to do with more
than one parameter to the block, possibly creating a temporary array
for the value/index pair and then splatting them on each call.