From: Martin DeMello <martindemello@...>
Date: 2007-02-17T20:12:01+09:00
Subject: Re: Array funkiness?

On 2/17/07, Phrogz <gavin@refinery.com> wrote:
> You basically asked Ruby to do:
>   b = Array.new
>   a = [b,b,b,b,b,b,b,b,b]
> so modifying any particular instance modifies them all.

And the reason a[0] += [i] works is that internally it gets converted
to a[0] = a[0] + i, so that it returns a different object altogether.

martin