From: dblack@...
Date: 2007-02-20T06:35:59+09:00
Subject: Re: For loops don't count down

Hi --

On Tue, 20 Feb 2007, Robert Dober wrote:

>> > I do not like the lack of symmetry it just feels not right.
>> 
>> You should adopt my Ruby slogan:
>>
>>    Ruby: the triumph of balance over symmetry.
>> 
>> :-)
> It's easy when you are with the majority, do you remember the thread
> about "receiver" though ;) [ I still think you are right about that
> one]
> I kind of hope to be right with this one, but I am checking the thread 
> now.

One example is:

   "09".succ # => "10"
   "9".succ  # => "10"

   "10".pred # => ??

Since it's not a one-to-one mapping, the only way to go backwards is
to come up with arbitrary rules.  That doesn't mean it's a bad idea,
but there's definitely no single clear way for it to work.


David

-- 
Q. What is THE Ruby book for Rails developers?
A. RUBY FOR RAILS by David A. Black (http://www.manning.com/black)
    (See what readers are saying!  http://www.rubypal.com/r4rrevs.pdf)
Q. Where can I get Ruby/Rails on-site training, consulting, coaching?
A. Ruby Power and Light, LLC (http://www.rubypal.com)