如何ng-repeat Angular 数组，我想在我的 View 中循环gpa。
[
{
"id": 1,
"name": "Pre-Algebra",
"selected": true,
"gpa": [
{
"grade_date": null,
"grade_type": null,
"grade_percent": null,
"letter_grade": null
},
{
"grade_date": null,
"grade_type": null,
"grade_percent": null,
"letter_grade": null
}
]
},
{
"id": 2,
"name": "Pre-Calculus",
"selected": true
}
]
查看代码:
<div ng-repeat="course in ctrl.subjectCourseGrades| filter: {selected : true} track by $index">
<table class="academy-table gpa-table" ng-class="!ctrl.editAcademyToggle?'data-view':''">
<tr ng-repeat="gpa in course.gpa" ng-if="!ctrl.editAcademyToggle" class="ots-data">
<td>
<b>Id is : {{$index}}<span ng-bind="gpa.grade_date"></span></b>
</td>
</tr>
</table>
</div>
我哪里做错了？
最佳答案
你不需要在 ngRepeat 表达式中使用 $index
使用
<tr ng-repeat="gpa in course.gpa"
代替
<tr ng-repeat="gpa in course.gpa[$index]"
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
this.subjectCourseGrades = [{
"id": 1,
"name": "Pre-Algebra",
"selected": true,
"gpa": [{
"grade_date": null,
"grade_type": null,
"grade_percent": null,
"letter_grade": null
},
{
"grade_date": null,
"grade_type": null,
"grade_percent": null,
"letter_grade": null
}
]
}];
});<!DOCTYPE html>
<html>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.4/angular.min.js"></script>
<body>
<div ng-app="myApp" ng-controller="myCtrl as ctrl">
<div ng-repeat="course in ctrl.subjectCourseGrades | filter: {selected : true} track by $index">
<table class="academy-table gpa-table">
<tr ng-repeat="gpa in course.gpa" class="ots-data">
<td>
<b>Id is : {{$index}}<span ng-bind="gpa.grade_date"></span></b>
</td>
</tr>
</table>
</div>
</div>
</body>
</html>关于javascript - 如何在angular js中重复一个数组，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/45004975/