Angularjs的ng-repeat中去除重复的数据

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 <div ng-repeat="item in items | unique: 'id'"></div>