From: Alex Young <alex@...>
Date: 2007-08-08T22:46:34+09:00
Subject: Re: Iterating list in pairs

dblack@rubypal.com wrote:
> Hi --
> 
> On Wed, 8 Aug 2007, FireAphis wrote:
> 
>> Hello,
>>
>> I need to iterate through a list and handle two elements on every
>> iteration. That is I'd like to do something like
>>
>> [1,2,3,4,5].each { |x, y| puts x.to_s + y.to_s }
>>
>> 12
>> 23
>> 34
>> 45
> 
> [1,2,3,4,5].inject {|a,b| puts "#{a}#{b}"; b }
> 
Oh, that's neat :-)

-- 
Alex