From: Clifford Heath <no@...>
Date: 2008-02-06T09:00:06+09:00
Subject: Re: creating a 2d array

Adam Akhtar wrote:
> Ok i think i kinda understand. Could you tell me if this is something 
> specific to arrays or is it used for other objects as well? If I wanted 
> to learn more about this in a book what should i look up in the 
> index/contents?

Worth reading in detail: <http://ruby-doc.org/core/classes/Array.html>.
Use IRB to enter examples of each usage shown, to make sure you understand
it. When you've read that, move on to Hash, String and Enumerable:

<http://ruby-doc.org/core/classes/Hash.html>,
<http://ruby-doc.org/core/classes/String.html>,
<http://ruby-doc.org/core/classes/Enumerable.html>.

Apart from knowing the Ruby syntax, 90% of all your code is covered by
those four pages. When you've worked through them all once, do it again
from the top, and you'll learn still more.

Clifford Heath.