From: Gregory Brown <gregory.t.brown@...>
Date: 2006-07-05T11:36:31+09:00
Subject: Re: Parallel Array

On 7/4/06, Matthew Smillie <M.B.Smillie@sms.ed.ac.uk> wrote:

> # using inject is fun.  Let's do it again.
> c = (0...a.length).inject([]) { |x, n| x << a[n] + b[n] }

better would be c = (0...a.length).inject([]) { |x, n| x + [ a[n] + b[n] ] }

The example you showed breaks the functional aspect of inject.
(it is doing double assignment)

I just learned to avoid this myself....