AngularJS 在同一元素上嵌套 ngRepeat

AngularJS nested ngRepeat on same element

有没有一种方法可以在 AngularJS 视图中执行嵌套循环而不创建隐藏的虚拟元素?

像这样:

<ul>
    <li ng-repeat="gem in activeHero.gems"
        ng-repeat="(key, value) in gem.attributes"
        ng-repeat="attr in value">
            {{attr.text}}
    </li>
</ul>

或这个

<ul>
    <li ng-repeat-start="gem in activeHero.gems"
        ng-repeat-start="(key, value) in gem.attributes"
        ng-repeat="attr in value">
            {{attr.text}}
    </li ng-repeat-end 
         ng-repeat-end>
</ul>

AFAIK 这些都不可能。

我基本上希望我的 HTML 与它所基于的 JSON 具有不同的结构。 我怎么能做到这一点?有没有办法在没有 HTML 元素的视图中创建循环?

上面的例子会像这样遍历 JSON 结构:

JSON(为清楚起见,去掉了很多)

"activeHero" = {
  "gems" : [ {
    "attributes" : {
      "primary" : [ {
        "text" : "+220 Intelligence"
      } ],
      "secondary" : [ ],
      "passive" : [ ]
    }
  }, {
    "attributes" : {
      "primary" : [ {
        "text" : "+220 Intelligence"
      } ],
      "secondary" : [ ],
      "passive" : [ ]
    }
  }, {
    "attributes" : {
      "primary" : [ {
        "text" : "+160 Intelligence"
      } ],
      "secondary" : [ ],
      "passive" : [ ]
    }
  } ]
}

(这是暴雪 API 对视频游戏 "Diablo 3" 的实际 JSON 回应)

尝试在渲染前格式化您的 json;

$scope.formattedData = [];
angular.forEach(activeHero.gems, function(value, key){
      var item = {
         //set filed you want
      }
      angular.forEach(value.atrtibutes, function(value2, key2){
               item['propyouwant'] = value2[propyouwant]
               angular.forEach(value2.primary, function(value3, key3){
                      item['propyouwant'] = value3[propyouwant]
                     $scope.formattedData.push(angular.extend({}, item));
               })
      })
})

//now you can render your data without somersould

编辑

为了提高性能,避免使用angular扩展;

$scope.formattedData = [];
angular.forEach(activeHero.gems, function(value, key){

      angular.forEach(value.atrtibutes, function(value2, key2){
               angular.forEach(value2.primary, function(value3, key3){
                     //start build your item here
                      var item = {
                        prop1: value['prop'],
                        prop2: value2['prop']
                       }
                     //not required extend item;
                     $scope.formattedData.push(item);
               })
      })
})