From: Robert Klemme <shortcutter@...>
Date: 2007-06-05T21:30:22+09:00
Subject: Re: Writing method "change!" for String

On 05.06.2007 14:16, Mike wrote:
> Hi,
> 
>    I'm trying to write simple method to change internal value of
> String class:
> 
> class String
>     def change!
>         self="0" if self.downcase=="myvalue1"
>         self="1" if self.downcase=="myvalue2"
>         self
>     end
> end
> 
> test="myvalue1"
> test.change!
> p test
> 
> It should just change value of string to what I want. But I get error:
> "Can't change the value of self".
> How do I proceed?

You don't.  Just use String#replace.

Btw, what are you trying to achieve?

Kind regards

	robert