From: Dave Thomas <Dave@...>
Date: 2001-01-31T05:51:18+09:00
Subject: [ruby-talk:10138] Re: Array's undocumented features

Mathieu Bouchard <matju@cam.org> writes:

> In particular, none of them define "out of range",

in our sense, we meant greater than the index of the highest element
currently in the array.

> someArray[2..1]		#=> []		YOW!
> someArray[2..0]		#=> nil		ok

I think this is equivalent to

  someArray[3,0]  #=> []
  someArray[3,-1] #=> nil

That is, there's a different between a zero length slice and an
invalid slice.


Regards


Dave