Javascript AngularJS中的动态ng重复
我的角度控制器是Javascript AngularJS中的动态ng重复,javascript,angularjs,angularjs-ng-repeat,Javascript,Angularjs,Angularjs Ng Repeat,我的角度控制器是 $scope.dyna = [ { "name": "parshuram", "age": 24 }, { "name": "Tejash", "age": 26 }, { "name": "Vinayak", "age": 25 } ]; 我的html <table> <tbody> <tr ng-repeat="test in dyna"> <td>{{test.name}}&l
$scope.dyna = [
{ "name": "parshuram", "age": 24 },
{ "name": "Tejash", "age": 26 },
{ "name": "Vinayak", "age": 25 }
];
我的html
<table>
<tbody>
<tr ng-repeat="test in dyna">
<td>{{test.name}}</td>
<td>{{test.age}}</td>
</tr>
</tboody>
</table>
但是,如果将另一个变量添加到我的范围变量中,我需要在html表中进行更改:
$scope.dyna = [
{ "name": "parshuram", "age": 24 ,"void": true},
{ "name": "Tejash", "age": 26,"void" : false }
];
<table>
<tbody>
<tr ng-repeat= "test in dyna">
<td>{{test.name}}</td>
<td>{{test.age}}</td>
<!-- I don't want to have to add this, the columns should be added dynamically -->
<td>{{test.void}}</td>
</tr>
</tboody>
</table>
$scope.dyna=[
{“姓名”:“帕舒拉姆”,“年龄”:24,“无效”:真实},
{“姓名”:“Tejash”,“年龄”:26,“无效”:假}
];
{{test.name}
{{test.age}
{{test.void}
在这种情况下,可以动态生成列吗?例如,通过从范围中获取所有my object变量?只需再次进行,然后在测试变量的循环中重复另一个ng:
$scope.dyna = [{ "name": "parshuram", "age": 24 ,"void": true}, { "name": "Tejash", "age": 26,"void" : false }];
<table>
<tbody>
<tr ng-repeat= "test in dyna">
<td ng-repeat="t in test">{{test[t]}</td> // just like this
</tr>
</tboody>
</table>
$scope.dyna=[{“name”:“parshuram”,“age”:24,“void”:true},{“name”:“Tejash”,“age”:26,“void”:false}];
{{test[t]}//就像这样
您应该能够通过(键、值)迭代来实现这一点
最好有小提琴来验证,但应该是:
<tr ng-repeat= "test in dyna">
<td ng-repeat="(key,value) in test">{{value}}</td>
</tr>
{{value}}
可以在对象上循环:
{{value}}
但是,正如上面链接的文档所述,与在阵列上工作的ng repeat
相比,存在一些限制:
- JavaScript规范没有定义键的顺序 为对象返回,因此Angular依赖于 在myObj中运行键时使用浏览器。浏览器通常遵循 按定义顺序提供密钥的策略, 尽管在删除和恢复密钥时也有例外。 有关更多信息,请参阅删除上的MDN页面
- ngRepeat将自动忽略以$开头的对象键,因为 它是Angular用于public($)和private($)的前缀 财产
- 内置过滤器orderBy和filter不适用于对象,以及 如果与一个一起使用,将抛出一个错误
如果在“运行时”,我不知道。否则:
<div ng-controller="MyCtrl">
<table>
<tbody>
<tr ng-repeat= "test in dyna">
<td ng-repeat="key in objectKeys(test)">{{test[key]}}</td>
</tr>
</tbody>
</table>
</div>
HTML
安格拉斯
angular.module('app',[]).controller('test1',['$scope','$compile','$sce',function($scope,$compile,$sce){
$scope.dyna=[
{“姓名”:“帕舒拉姆”,“年龄”:24},
{“姓名”:“Tejash”,“年龄”:26},
{“姓名”:“维纳亚克”,“年龄”:25}
];
$scope.result=“”;
对于(var i=0;icheck键,值方法的顺序相反。它可以工作,谢谢我不担心顺序,这个方法和其他方法一样吗limitation@Parshuram我不知道noNo我不想这样做我没有在我的控制器中玩,我的html字符串来自服务器,我只是在这里绑定,所以这对methis不起作用这是c的一种方式动态创建html,甚至在服务器端创建html。但ng repeat是一种简单且更好的方法。
<table>
<tbody>
<tr ng-repeat= "test in dyna">
<td ng-repeat="(key, value) in test">
{{value}}
</td>
</tr>
</tbody>
</table>
<div ng-controller="MyCtrl">
<table>
<tbody>
<tr ng-repeat= "test in dyna">
<td ng-repeat="key in objectKeys(test)">{{test[key]}}</td>
</tr>
</tbody>
</table>
</div>
var myApp = angular.module('myApp',[]);
function MyCtrl($scope) {
$scope.dyna = [
{ "name": "parshuram", "age": 24 },
{ "name": "Tejash", "age": 26 },
{ "name": "Vinayak", "age": 25 }
];
$scope.objectKeys = function (object) {
var keys = Object.keys(object);
keys.splice(keys.indexOf('$$hashKey', 1))
return keys;
}
}
<html>
<script src="library/angular.min.js"></script>
<script src="practice.js"></script>
<head>
</head>
<body ng-app="app">
<div ng-controller="test1" ng-bind-html="result">
</div>
</body>
</html>
angular.module('app',[]).controller('test1',['$scope','$compile','$sce',function($scope,$compile,$sce){
$scope.dyna = [
{ "name": "parshuram", "age": 24 },
{ "name": "Tejash", "age": 26 },
{ "name": "Vinayak", "age": 25 }
];
$scope.result="<table><tbody>";
for(var i=0;i<$scope.dyna.length;i++){
$scope.result+="<tr>";
for(var key in $scope.dyna[i])
if($scope.dyna[i].hasOwnProperty(key))
$scope.result+='<td>'+$scope.dyna[i][key]+'</td>';
$scope.result+="</tr>";
}
$scope.result+="</tbody></table>";
$scope.result=$sce.trustAsHtml($scope.result);
}]);