From: YANAGAWA Kazuhisa <kjana@...4lab.to>
Date: 2006-01-12T21:11:31+09:00
Subject: Re: Merge two arrays?

In Message-Id: <7890ecfa1ecf4ba63d489bcce21a1d3e@ruby-forum.com>
Joshua Muheim <forum@josh.ch> writes:

> array1 = [1,2,4,6]
> array2 = [1,3,5,6]
> 
> array1 ?? array2 = [1,6] # Only add entries that occur in both arrays
> array1 ?? array2 = [2,3,4,5] # Only add entries that occur in one of 
> both arrays

For former Array#& can be used if there're no duplicated elements in
your arrays.  For latter, hmm, I can't remember no one methods but you
can (array1|array2)-(array1&array2), on same assumption.

Note these operators always make a new array for a result, they may
not be suitable when both your arrays are too large, though


-- 
kjana@dm4lab.to                                       January 12, 2006
Time and tide wait for no man.