獲取對JavaScript中對象內部數組的訪問

Question

我是angularjs的新手，所以我不知道如何將任何值推送到特定位置的數組。 例如 ：

$scope.atparticular.push = 
[

{questionText: 'queston1',questionId: '1',answerlst:[{answerText:'answer1',answerId: 'a1'},{answerText: 'answer2',answerId: 'a2'},{answerText: 'answer3',answerId: 'a3'}]},

{questionText: 'row2queston1',questionId: 'rq1',answerlst:[{answerText:'row2answer1',answerId: 'row2a1'},{answerText: 'row2answer2',answerId: 'row2a2'},{answerText: 'row2answer3',answerId: 'row2a3'}]}

];

如果這是我的包含列表的對象，並且我想在answerlst后面追加一個包含空值的位置，例如：

$scope.atparticular.push = 
    [

    {questionText: 'queston1',questionId: '1',answerlst:[{answerText:'answer1',answerId: 'a1'},{answerText: 'answer2',answerId: 'a2'},{answerText: 'answer3',answerId: 'a3'},{answerText: '',answerId: ''}]},

    {questionText: 'row2queston1',questionId: 'rq1',answerlst:[{answerText:'row2answer1',answerId: 'row2a1'},{answerText: 'row2answer2',answerId: 'row2a2'},{answerText: 'row2answer3',answerId: 'row2a3'},{answerText: '',answerId: ''}]}

    ];

請給一些建議。 提前致謝。

Answer 1

如果我理解正確，則想在$scope.atparticular.push數組的第一個元素的數組answerlst的末尾添加一個對象。

所以你要：

$scope.atparticular.push[0].answerlst.push({answerText: '',answerId: ''});

請注意，這與angularJS本身無關。 這只是普通的JavaScript。