From: Bill Kelly <billk@...>
Date: 2006-10-26T08:21:18+09:00
Subject: Re: simple math question

From: "Brad Tilley" <rtilley@vt.edu>
>
> What's the quickest way to determine if an int is an even number 
> 2,4,6,8...
> Anything such as int.even or int.odd returning true/false? I want to 
> test the length of an array and add one element to it if it has an odd 
> number of elements.

class Integer
  def even?
    (self & 1) == 0
  end
end


Hope this helps,

Bill