From: dblack@...
Date: 2006-11-03T06:48:16+09:00
Subject: Re: str1 = str2 is not a copy?!?

Hi --

On Fri, 3 Nov 2006, Paul Lutus wrote:

> Joe Ruby MUDCRAP-CE wrote:
>
> / ...
>
>> WHY is var line getting changed by operations on var base_name?
>
> Because in most cases, variable names contain references for the sake of
> efficiency. To get the behavior you want, try:
>
> base_name = "" + line

You don't have to resort to a workaround like that; you can do:

   base_name = line.dup


David

-- 
                   David A. Black | dblack@wobblini.net
Author of "Ruby for Rails"   [1] | Ruby/Rails training & consultancy [3]
DABlog (DAB's Weblog)        [2] | Co-director, Ruby Central, Inc.   [4]
[1] http://www.manning.com/black | [3] http://www.rubypowerandlight.com
[2] http://dablog.rubypal.com    | [4] http://www.rubycentral.org