From: Ben Bleything <ben@...>
Date: 2009-03-15T08:37:49+09:00
Subject: Re: Extract common entries in two arrays [SOLVED]

On Sat, Mar 14, 2009 at 4:34 PM, Iņaki Baz Castillo <ibc@aliax.net> wrote:
>>   array1 = ["q", "w", "e", "r", "t", "y"]
>>   array2 = ["w", "t", "z"]
>>
>> I want to get:
>>   array_common = ["w", "t"]
>
> array_common = array1 - (array1 - array2)
> => ["w", "t"]

Easier:

  array1 & array2
  => ["w", "t"]

Ben