From: David Alan Black <dblack@...>
Date: 2001-12-31T21:48:09+09:00
Subject: [ruby-talk:29847] Re: && vs. and

Hello --

On Mon, 31 Dec 2001, Stefan Schmiedl wrote:

> David Alan Black (2001-12-31 21:30):
>
> > (Hmmm...  Playing around with this I'm mildly surprised that "true &&
> > nil" is nil, rather than false.)
>
> well, "true and iDontKnow" gives "iDontKnow" and not "false".

Actually:

irb(main):031:0> true && iDontKnow
NameError: undefined local variable or method `iDontKnow' for
#<Object:0x40182b14>

:-)

> you just are not sure with nil, whereas you have decided with
> true or false.

I thought nil's boolean value was false, and that:

    (a true thing) && (a false thing)

would evaluate to false.


David

-- 
David Alan Black
home: dblack@candle.superlink.net
work: blackdav@shu.edu
Web:  http://pirate.shu.edu/~blackdav