From: Anthony Martinez <pi@...>
Date: 2007-06-25T09:18:37+09:00
Subject: Re: Helper to create multi-dimensional arrays

--UlsYxwg8UDQn+EKZ
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On Mon, Jun 25, 2007 at 08:06:44AM +0900, Daniel DeLorme wrote:
> Anthony Martinez wrote:
> >I came up with this method really quick to create x*y arrays in Ruby. It
> >mimicks Array#new's behavior pretty closely wrt blocks, I hope. What do =
you all
> >think?
>=20
> What about making it more general than just x*y arrays?

Ooh. That didn't occur to me. Nice.

>=20
> class << Array
>   def multi(n, *args, &block)
>     if args.empty?
>       Array.new(n, &block)
>     else
>       Array.new(n) do
>         Array.multi(*args, &block)
>       end
>     end
>   end
> end
>=20
> ?> Array.multi(2){ 0 }
> =3D> [0, 0]
> >> Array.multi(2,2){ 0 }
> =3D> [[0, 0], [0, 0]]
> >> Array.multi(2,2,2){ 0 }
> =3D> [[[0, 0], [0, 0]], [[0, 0], [0, 0]]]
> >> Array.multi(2,2,2,2){ 0 }
>=20
>=20
>=20
> hehe, playing around is fun
>=20
> Daniel
>=20

--=20
How'd you get this number?
-- A Qwest Central Office Technician

--UlsYxwg8UDQn+EKZ
Content-Type: application/pgp-signature
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)

iD8DBQFGfwndKaiGM/xGKzQRAil1AJ9JI6MIaEqu6sWe15AOB+rSSgez8gCguGOc
eHyT3a55RCoV15xSWxg9x0Y=
=JFyL
-----END PGP SIGNATURE-----

--UlsYxwg8UDQn+EKZ--