Javascript Angularjs从Json对象中删除子对象

当我试图删除子对象时，我得到了一个错误

TypeError:ctrl.otsact.tests.splice不是函数

HTML:

<tr ng-repeat="act in ctrl.otsact.tests" ng-if="ctrl.editToggle">
    <td><span ng-click="ctrl.removeOTSACT(act.id)"> Delete </span></td>
</tr>

Json对象

{  
   "ACT":{  
      "name":"ACT",
      "tests":{  
         "73":{  
            "id":73,
            "official_test_id":1,
            "student_id":165888,
            "test_date":"2017-05-12",
            "score":"0.0",
            "created_at":"2017-05-23 13:50:40",
            "created_by_id":2766,
            "updated_at":"2017-05-23 13:50:40",
            "updated_by_id":2766,
            "subjects":[  
               {  
                  "id":1,
                  "official_test_id":1,
                  "student_id":165888,
                  "official_test_subject_id":1,
                  "score":1,
                  "student_score_id":73,
                  "name":"English",
                  "is_consider":1
               },
               {  
                  "id":2,
                  "official_test_id":1,
                  "student_id":165888,
                  "official_test_subject_id":2,
                  "score":1,
                  "student_score_id":73,
                  "name":"Math",
                  "is_consider":1
               },
               {  
                  "id":3,
                  "official_test_id":1,
                  "student_id":165888,
                  "official_test_subject_id":3,
                  "score":1,
                  "student_score_id":73,
                  "name":"Reading",
                  "is_consider":1
               },
               {  
                  "id":4,
                  "official_test_id":1,
                  "student_id":165888,
                  "official_test_subject_id":4,
                  "score":1,
                  "student_score_id":73,
                  "name":"Science",
                  "is_consider":1
               },
               {  
                  "id":5,
                  "official_test_id":1,
                  "student_id":165888,
                  "official_test_subject_id":5,
                  "score":1,
                  "student_score_id":73,
                  "name":"Writing",
                  "is_consider":0
               }
            ]
         },
         "74":{  
            "id":74,
            "official_test_id":1,
            "student_id":165888,
            "test_date":"2017-05-12",
            "score":"0.0",
            "created_at":"2017-05-23 13:50:40",
            "created_by_id":2766,
            "updated_at":"2017-05-23 13:50:40",
            "updated_by_id":2766,
            "subjects":[  
               {  
                  "id":1,
                  "official_test_id":1,
                  "student_id":165888,
                  "official_test_subject_id":1,
                  "score":2,
                  "student_score_id":74,
                  "name":"English",
                  "is_consider":1
               },
               {  
                  "id":2,
                  "official_test_id":1,
                  "student_id":165888,
                  "official_test_subject_id":2,
                  "score":2,
                  "student_score_id":74,
                  "name":"Math",
                  "is_consider":1
               },
               {  
                  "id":3,
                  "official_test_id":1,
                  "student_id":165888,
                  "official_test_subject_id":3,
                  "score":2,
                  "student_score_id":74,
                  "name":"Reading",
                  "is_consider":1
               },
               {  
                  "id":4,
                  "official_test_id":1,
                  "student_id":165888,
                  "official_test_subject_id":4,
                  "score":2,
                  "student_score_id":74,
                  "name":"Science",
                  "is_consider":1
               },
               {  
                  "id":5,
                  "official_test_id":1,
                  "student_id":165888,
                  "official_test_subject_id":5,
                  "score":2,
                  "student_score_id":74,
                  "name":"Writing",
                  "is_consider":0
               }
            ]
         }
      }
   }
}

在上面的脚本中我做错了什么

---

谢谢。

在JSON表示中，ctrl.otsact.ACT.tests不是数组。如果您可以更改JSON，使“tests”是一个数组，那么拼接将起作用。

这是一个对象而不是数组，因此您无法拼接它。 更改此项：

ctrl.otsact.tests.splice(index, 1);

为此：

delete ctrl.otsact.tests[index];

---

您可能需要在使用splice之前解析您的变量，就像您的变量是一个对象一样？

delete ctrl.otsact.tests[index];