From: Robert Klemme <shortcutter@...>
Date: 2006-05-06T14:55:10+09:00
Subject: Re: klass.include vs instance.extend question

2006/5/6, polypus <polypus@yahoo.com>:
>
> >
> > Did I miss something?
>
> ok forget all of my above code. i've solved that problem in another
> thread, see 'mixin puzzle'.
>
> but i would still like to know when one would prefer extending the
> individual objects instead of 'including' into their class (and vice
> versa), and what the pros and cons of each method are.

Well, the answe is pretty obvious: if you need all instances of a
class to have these methods you'll certainly want to include the
module in the class. If you just want to modify individual objects
then you extend them on a one by one basis.

And I guess extending individual objects is less efficient (at least
memory wise) than doing it on the class level.

robert

>
> thanks,
> _c
>
>
> --
> Posted via http://www.ruby-forum.com/.
>
>


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