From: Dan Zwell <dzwell@...>
Date: 2007-06-10T12:27:47+09:00
Subject: Re: Strange behavior of Array

Peter Seebach wrote:
> In message <ae8a916c0706092013w592e1730y59b0c9d7d55d7005@mail.gmail.com>, "huang zhimin" writes
> :
>> I want a multidimensional array with initial value 0, so I create it by
> 
>> arr = Array.new(3, Array.new(3, 0))    =>     [[0, 0, 0], [0, 0, 0], [0, 0,
>> 0]]
> 
> You have now created an array consisting of three copies of the SAME
> array [0,0,0].
> 
> This is a FAQ.
> 
> -s
> 
> 

Yeah, but at least give the guy a link to the correct solution, or 
something.

This is how you do it:
arr = Array.new(3) { Array.new(3, 0) }

Dan