From: pierodancona@... Date: 2008-10-11T22:32:29+09:00 Subject: newbie q: stripping duplicates This is certainly well known, but not to me. >> a = [{"aa"=>"bb"},{"aa"=>"bb"}] => [{"aa"=>"bb"}, {"aa"=>"bb"}] >> a.uniq => [{"aa"=>"bb"}, {"aa"=>"bb"}] Why? and, what should I use instead of .uniq to remove the duplicate? Thank you Piero