From: 7stud -- <bbxx789_05ss@...>
Date: 2009-04-30T20:14:56+09:00
Subject: Re: find if an array has any element present in another arra

as wrote:
>
> (a-b).nil?

result = [1] - [2, 3]  #no common elements
p result

result = [2, 3] - [2]  #common elements
p result

--output:--
[1]
[3]

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