From: Florian Gross <flgr@...>
Date: 2004-09-29T03:49:20+09:00
Subject: Re: weird behavior pushing an array onto an array

Brian Candler wrote:

>>>In my program, I fill an array, a, with data and push it onto an array b
>>>which is initially empty.
>>You push the same array over and over. You want to push a copy instead.
>>Use #clone or #dup to get a copy of the Array.
> Beware that may not be enough by itself, because the array contains strings;
> even if you dup the array you will still have references to the same
> strings. This will become apparent if you later modify one of the strings:

Thank you for the correction, you are right of course.

> Or more compactly,
> 
>   b = (1..5).collect { ["ACINX", "28.53", "15.63", "3.95", "7.76", "1.05", 0] }

Or even this:

b = Array.new(5) { ["ACINX", "28.53", "15.63", "3.95", "7.76", "1.05", 0] }

> Regards,
> Brian.

More regards,
Florian Gross