From: Gene Tani <gene.tani@...>
Date: 2006-01-13T01:03:47+09:00
Subject: Re: Merge two arrays?


YANAGAWA Kazuhisa wrote:
> 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
>
>
> --

be careful with ''&' and '-'
http://www.ruby-talk.org/cgi-bin/scat.rb/ruby/ruby-talk/65361
> kjana@dm4lab.to                                       January 12, 2006
> Time and tide wait for no man.