From: Robert Klemme <shortcutter@...>
Date: 2006-08-17T20:55:06+09:00
Subject: Re: Array Comparison

On 17.08.2006 13:32, aidy wrote:
> Hi Guys
> 
> I have compared an array and '0' is being returned which indicates to
> me that that array is equal
> 
> p t = $ie.table(:index, '2').to_a.flatten
> p t <=> ["HINCKLEY", "HINDHEAD", "HINTON ST GEORGE"]
> 
> Now would it be possible for me to extract any differences from this
> array  (that is, when the array is not equal)?
> 
> Or should I really be using Test::Unit: to assert array equality?

You can use Array#zip (block form) to determine any differences.

["HINCKLEY", "HINDHEAD", "HINTON ST GEORGE"].zip(t) do |a,b|
   if a != b
     print "Difference: ", a.inspect, " ", b.inspect, "\n"
   end
end

Kind regards

	robert