From: Mathieu Bouchard Date: 2000-12-04T01:11:48+09:00 Subject: [ruby-talk:6771] Re: Array Intersect (&) question > Given: a = [1,3,5,7] and b = [2,5,3,6], should a&b be [3,5] or [5,3] if we > want to "preserve" order??? in Array#|, receiver has priority. I adopted the same behaviour in my (second) reimplementation of Array#|,&,uniq (see ruby-talk:6756) matju