From: RichardOnRails <RichardDummyMailbox58407@...>
Date: 2008-08-26T09:20:40+09:00
Subject: Re: Dumb "array of arrays" question

On Aug 25, 6:57 pm, RichardOnRails
<RichardDummyMailbox58...@uscomputergurus.com> wrote:
> Hi,
>
> I wrote the following intending to create an array of 3 element, each
> being itself an array of two elements initialized to zero;  Judging by
> "inspect", I seem to have that:
>
> a = Array.new(3, [0,0]) => [[0, 0], [0, 0], [0, 0]]
>
> I tried the following,  which confirms that a[0] is indeed a sub-
> array.
>
> a[0].inspect + "; " + a[0].class.to_s => [0, 0]; Array
>
> Then I tried to assign a number (5) to the first element of the first
> sub-array. What I got was more 5's than I bargained for:
>
> a[0][0]=5 => [[5, 0], [5, 0], [5, 0]]
>
> What am I missing here?
>
> Thanks in Advance,
> Richard

Hi y'all,

Many thanks.
Thanks to Michael for being first with a quick solution
Thanks to Todd for suggesting what might be more elegant in certain
circumstances.
Thanks to Chris for revealing exact how Ruby handles my construct and
the one I really want.

Best wishes,
Richard