From: Abhi Yerra <abhi@...>
Date: 2009-01-17T07:04:33+09:00
Subject: Re: create copy of array without changing original

On Sat, Jan 17, 2009 at 05:06:21AM +0900, Jason Lillywhite wrote:
> Why is it that if I create an array, a = [1,2,3]
> then do b = a
> then b[0] = 99
> 


> why is that a[0] magically becomes 99 too?
> 

b = a points to the same area of memory as a for lists.

> how can I preserve 'a' after I make a copy of it, then change that new
> copy?

b = a.clone

Should copy the list.

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