一、JS

1 ngApp.filter('unique', function () { 2     return function (collection, keyname) { 3         var output = [], 4             keys = []; 5  6         angular.forEach(collection, function (item) { 7             var key = item[keyname]; 8             if (keys.indexOf(key) === -1) { 9                 keys.push(key);10                 output.push(item);11             }12         });13 14         return output;15     };16 });

二、Html

1