From: "Jesús Gabriel y Galán" <jgabrielygalan@...>
Date: 2009-02-01T05:01:47+09:00
Subject: Re: ruby string question

On Sat, Jan 31, 2009 at 7:40 PM, Tsunami Scripter <lyon2003@lycos.com> wrote:
> Is it possible to modify an existing ruby string without creating a new
> one ?
>
> If for example I have the following code :
>
> x = "first string"
> x = "second string"
>
> between asigning values , the object_id() is different . Is there a
> possibility to modify the first string so that after the modifications
> the object_id will be the same ?

>> a = "first string"
=> "first string"
>> a.replace "second string"
=> "second string"
>> a
=> "second string"
>> a.object_id
=> 340702860
>> a.replace "third string"
=> "third string"
>> a.object_id
=> 340702860

> I would like to know how I could get to an empty string from "first
> string". I would like to know if a clear method exists,or something
> alike. I'm using ruby 1.8.7 .

a.replace ""

Jesus.