From: Joe Van Dyk <joevandyk@...>
Date: 2005-02-05T07:14:47+09:00
Subject: Re: iteration the ruby way

On Sat, 5 Feb 2005 07:05:51 +0900, Navindra Umanee
<navindra@cs.mcgill.ca> wrote:
> Hi,
> 
> I have a question about The Ruby Way.  Pickaxe gives the following
> example for using iterators in Ruby:
> 
> a = [ "a", "b", "c" ]
> a.each {|x| print x, " -- " }
> 
> This outputs:
> 
> a -- b -- c --
> 
> But what if I want to print "a -- b -- c"?  What's the proper Ruby way
> of doing that?  Is there some way of detecting the last element?  I
> mean, obviously I can do it with a for/while loop or something...
> 
> Thanks,
> Navin.
> 

This probably isn't what you're looking for... but:

puts a.join(" -- ")