From: Alex Gutteridge <alexg@...>
Date: 2008-07-15T23:07:48+09:00
Subject: Re: array ending syntax question

On 15 Jul 2008, at 06:13, Roger Pack wrote:

> irb(main):001:0> [1,2][2..2]
> => []
> irb(main):002:0> [1,2][3..3]
> => nil
>
>
> Is this expected?
> the ri says:
>     Returns nil if the index (or starting index) are out of range.
>
> does the first example match this?
> Thanks!
> -R

 From the Pickaxe: If the start index equals the array size and a  
length or range (as here) parameter is given, an empty array is  
returned.

Not sure why you would want that behaviour though...

Alex Gutteridge

Department of Biochemistry
University of Cambridge