From: Joel VanderWerf <vjoel@...>
Date: 2005-08-02T03:06:16+09:00
Subject: Re: array in array, like include?

Joe Cheng wrote:
> Ben wrote:
> 
>> Is there a function to checking to see if the elements of one array
>> exist in another?
>>
>> a = [1,2,3,4,5]
>> b = [1,4]
>>
>> a.include?(b) will only work if b is a string. I'd like to get a
>> true/false if b exists in a.
>>  
>>
> How about:
> (a & b).length == b.length

(a&[1,4,4]).length == [1,4,4].length
=> false

so it might or might not be ok...

-- 
      vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407