From: 7stud -- <bbxx789_05ss@...>
Date: 2009-04-30T19:59:59+09:00
Subject: Re: find if an array has any element present in another arra

Charanya Nagarajan wrote:
> Hi,
> 
> I have 2 lists
> 
> a=[1,2,3,4]
> b=[2,4,6,7,8]
> 
> I want to find if there are any elements present in "a" which are also
> present in "b".
> I jus wanna "true" or "false" answer if both of the arrays have any
> element in common.
> 
> Is there any inbuilt functions like "include?" for this purpose??
> 
> Thanks in Advance.

a=[1,2,3,4]
b=[2,4,6,7,8]

result = a & b
p result

puts (a & b).empty?

--output:--
[2, 4]
false

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