From: Dan Doel <djd15@...>
Date: 2004-01-31T17:30:59+09:00
Subject: Re: No difference between .. and ... flip/flop operators?

When constructing ranges of values (such as Fixnums), ... excludes the 
end, while .. includes it.

So:

(1..10).each { |i| puts i }

prints 1 - 10, while:

(1...10).each { |i| puts i }

prints 1 - 9.

As far as I know, .. and ... are identical in flip-flops (which I 
thought was in the Pickaxe, but I
can't find it right now, so maybe I just read it here a while ago).

However, regarding this and your last mail, I believe Matz is 
considering taking out flip-flops
in the future (in Rite, maybe?), so you may want to look into other ways 
of doing stuff (if you're
worried about it running in 2.0 and beyond, that is).

- Dan