From: bbiker <renard@...>
Date: 2009-08-04T08:40:06+09:00
Subject: Re: Inconsistency in Array#[]

On Aug 3, 4:38 am, Harry Kakueki <list.p...@gmail.com> wrote:
> On Mon, Aug 3, 2009 at 5:17 PM, Bertram Scharpf<li...@bertram-scharpf.de> wrote:
> > Hi,
>
> > Am Montag, 03. Aug 2009, 09:11:11 +0900 schrieb Bertram Scharpf:
> >> Am Montag, 03. Aug 2009, 05:50:10 +0900 schrieb Wojciech Piekutowski:
> >> >   a = [1,2,3,4,5]
>
> >> I would even prefer a behaviour like this:
>
> >>   a[3,-3]    #=> [4,3,2]
>
> >> This would be the least surprise to me.
>
> > Sorry! The least surprise of course would be
>
> >  a[3,-3]    #=> [3,2,1]
>
> > Bertram
>
> > --
> > Bertram Scharpf
> > Stuttgart, Deutschland/Germany
> >http://www.bertram-scharpf.de
>
> Really?
>
> a = [1,2,3,4,5]
> p a[3,2] #=> [4, 5]
>
> #p a[3,-3] #=> [4,3,2]
> #a[start,length]
>
> This seems least surprising to me.
>
> Harry
>
> --
> A Look into Japanese Ruby List in Englishhttp://www.kakueki.com/ruby/list.html

I'm sorry to butt in, but your getting exactly what you  ask for but
you expecting otherwise!

a[x, y]   means starting at element x give me up to y elements

a = [1.2.3.4,5]
a[-3,3]   => [3,4,5]
a[-3,4]   => [3.4,5]

a[-3,0]  => []

a[3,-3]  =>    # there is no such thing  -3 elements  therefore it
returns nil