访问控制器内的 AngularJs 指令变量 [英] Access AngularJs directive variable inside controller
问题描述
我对 Angularjs 有点陌生.我想要的是访问myController"控制器内的$scope.myVar"变量.如果您能提供解决方案，那将是非常有帮助的.
angular.module('myDirective', []).controller('myController', ['$scope', function ($scope) {}]).directive('myDirective', function () {返回 {范围: {我的变量:'='},控制器:函数($scope){$scope.myVar = 'xyz';警报($scope.myVar)；}};});<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script><script type="text/javascript" src="newjavascript.js"></script><body ng-app="myDirective"><div ng-controller="myController"><我的指令></我的指令>></html>
您只需在控制器中创建一个 myVar 变量并使用 my-var 将其传递给指令属性.
在您的 myController 中，将 myVar 定义为
$scope.myVar="你好"我是你的DOM，将它传递给指令
由于您使用的是双向绑定，因此指令对 myVar 所做的任何更改都可以在您的控制器中使用.
您可以在 myVar 上放置一个 watch 以跟踪更改.
I'm little bit new to Angularjs. What I want is access "$scope.myVar" variable inside 'myController' controller. It would be great help if you can provide a solution.
angular.module('myDirective', [])
.controller('myController', ['$scope', function ($scope) {
}])
.directive('myDirective', function () {
return {
scope: {
myVar: '='
},
controller: function ($scope) {
$scope.myVar = 'xyz';
alert($scope.myVar);
}
};
});
<html lang="en-US">
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<script type="text/javascript" src="newjavascript.js"></script>
<body ng-app="myDirective">
<div ng-controller="myController">
<my-directive></my-directive>>
</div>
</body>
</html>
You just create a myVar variable in your controller and pass it to the directive using my-var attribute.
In your myController, Define myVar as
$scope.myVar= "Hello"
I your DOM, pass it to the directive as
<my-directive my-var="myVar"></my-directive>
Since you are using two way binding, any changes made to myVar by the directive are available in your controller.
You can put a watch on myVar to track the changes.
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