From: Jamis Buck <jamis@37signals.com>
Date: 2005-06-14T02:55:17+09:00
Subject: Re: creating a ! method


On Jun 13, 2005, at 11:51 AM, Kurt V. Hindenburg wrote:

> Hello,
>   I have this code.  It works fine but I would like to use  
> round_to_interval!.
> I could not figure out how to code that.  Any suggestions?
>
> class Time
>    def round_to_interval!
>       # how?
>    end
>
>    def round_to_interval
>       self - (self.min % 10) * 60
>    end
> end
>
>

Time objects are immutable (like numbers, symbols, etc.), so you  
cannot alter them directly.

- Jamis