我正在尝试从JSON数据下面获取一个类别下拉列表。我有多次相同的类别,例如:Ex:Computer
[
{
"title":"C Programming",
"category":"Computer"
},
{
"title":"International Tax",
"category":"Business"
},
{
"title":".net Programming",
"category":"Computer"
}
//more data...
]
AngularJS:
function showSubjects($scope, $http)
{
$http({method: 'POST', url: 'js/subjects.json'}).success(function(data)
{
$scope.items= data; // response data
});
}
HTML:
<div id="ng-app" ng-app ng-controller="showSubjects">
<select>
<option ng-repeat="subjects in items">{{subjects.category}}</option>
</select>
</div>
我想只显示一次重复的类别。请给我一些建议,如何实现所需的输出。提前谢谢。
答案 0 :(得分:2)
使用
<option ng-repeat="subjects in items | unique:'category'">{{subjects.category}}</option>
在此处查看更多信息:Unique & Stuff
答案 1 :(得分:0)
您可以使用自己的功能,如下所示:
<select name="cmpPro" ng-model="test3.Product" ng-options="q for q in productArray track by q">
<option value="" >Plans</option>
</select>
productArray =[];
angular.forEach($scope.leadDetail, function(value,key){
var index = $scope.productArray.indexOf(value.Product);
if(index === -1)
{
$scope.productArray.push(value.Product);
}
});