From: dagbrown@... (Dave Brown)
Date: 2004-01-16T04:46:36+09:00
Subject: Re: Getting the tail of a list?

In article <4005AC05.90007@hypermetrics.com>,
Hal Fulton  <hal9000@hypermetrics.com> wrote:
: Dave Brown wrote:
: > In article <20040114130426.GA15734@mlabdial.hit.bme.hu>,
: > KONTRA Gergely  <kgergely@mlabdial.hit.bme.hu> wrote:
: > : On 0113, Robert Klemme wrote:
: > : > > Whups, never mind, that doesn't work. :)
: > : > 
: > : > But this does:
: > : > 
: > : > irb(main):001:0> a=[1,2,3,4]
: > : > => [1, 2, 3, 4]
: > : > irb(main):002:0> a[1,a.length]
: > : > => [2, 3, 4]
: > : > 
: > : > The second parameter is the length.  Simply using a.length is sufficient
: > : > since then all elements to the end are used.
: > : 
: > : I _would like to_ write a[2,Infinity], or something like that...
: > 
: > a[1,-1]
: 
: :)  "Error: Cycle detected in ruby-talk thread"
: 
: Read again. Robert's point was that this doesn't work. The second
: parameter is a length, and a length of -1 gives you nil.

D'oh.

That's what I get for not firing up irb.

a[1..-1] is what I actually meant.

--Dave