From: Robert Klemme <bob.news@...>
Date: 2004-09-21T00:59:39+09:00
Subject: Re: methods with and without !


"Bill Guindon" <agorilla@gmail.com> schrieb im Newsbeitrag
news:67a22292040920081463263f8@mail.gmail.com...
> On Mon, 20 Sep 2004 22:12:54 +0900, Jani Monoses <jani@iv.ro> wrote:
>
> > maybe it was my bad wording ;) I know that ! versions modify in place
> > (scheme heritage?)
> > I was asking which methods should have a ! variant along the regular
one.
> > We have sub and sub!, strip and strip! but no String#just! only
String#just
>
> It does seem a bit arbitrary.
>
> Personally, I'd like 'modify in place' versions of every method
> possible, but some of them would cause type conversions (ie: pack!,
> split!, hex!), which might be a bit 'surprising' to some people, so I
> could understand not adding those (but I would still want them).

You can't have them, because Ruby instances can't change their class.  But
you can always do foo = foo.gsub(/x/, 'u'), i.e., reassign the var to the
result of the conversion.

Regards

    robert