From: Henrik Horneber <ryco@...>
Date: 2004-09-30T23:09:54+09:00
Subject: Re: Range syntax theory

Austin Ziegler wrote:

> On Thu, 30 Sep 2004 22:58:26 +0900, Henrik Horneber <ryco@gmx.net> wrote:
> 
>> From an intellectual point I sort of understand the '..' and '..'
>>notation. What distracts me most, is the visual difference ... that the
>>visually longer three dot form contains fewer elements than the shorter
>>two dot form.
>>
>>(1..5).to_a
>>=>[1,2,3,4,5]
>>(1...5).to_a
>>=>[1,2,3,4]
> 
> 
> That's a dangerous consideration -- and not always true:
> 
> irb(main):001:0> (1..5).include?(4.99)
> => true
> irb(main):002:0> (1...5).include?(4.99)
> => true
> irb(main):003:0>
> 
> 1...5 doesn't include only the numbers 1, 2, 3, and 4 -- it contains
> the infinities between the numbers, and the infinity between 4 and 5,
> but not 5 itself.
> 
> -austin

Still, it's the 'larger' Range.
Otherwise, good point, thx.