From: "Sandor Szücs" <sandor.szuecs@...>
Date: 2008-07-07T15:32:10+09:00
Subject: Re: Find matching elements in array


On 07.07.2008, at 08:04, Pragash Mr. wrote:

> I have one array for example[1,2,3,4]
>
> i need to find the matching elements of another array is there any way
> to find....
> for example [1,2,3,4].include?(2)
> it will return true
> but i need to find one or more elements
> example : [1,2,3,4].include?(2,3)
> it is throwing an error
>
>
>
> If you have solution reply me


class Array
   alias old_include? include?
   def include?(*args)

     if args.length <= 1
       old_include?(args)
     else
       args.all? do |a|
         old_include?(a)
       end
     end
   end
end

puts("#{(0..9).to_a.include?(3,5)}")          # true
puts("#{('a'..'z').to_a.include?(3,5)}")      # false
puts("#{('A'..'ZZ').to_a.include?('G','AB')}")# true

regards, Sandor Szücs
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