从其他脚本调用 AngularJS [英] Call AngularJS from other scripts

问题描述

申请.现在我想用 AngularJS 实现一个动态菜单.因此，我需要从现有应用程序更改 AngularJS 应用程序中的变量.

我正在尝试这个例子:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script><script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.2/angular.min.js"></script><div ng-app="myApp" ng-controller="myCtrl" id="myApp">名:<input type="text" ng-model="firstName"><br>姓氏:<input type="text" ng-model="lastName"><br><br>全名:{{firstName + " " + lastName}}<button ng-click="resetName()">hi</button>

<script type="text/javascript">var app = angular.module('myApp', []);app.controller('myCtrl', function($scope) {$scope.firstName = "约翰";$scope.lastName = "Doe";$scope.resetName = function() {$scope.firstName = "John1";$scope.lastName = "Doe1";}});<button onclick="angular.element('#myApp').scope().resetName(); angular.element('#myApp').scope().apply();">extern</button>

从外部脚本调用resetName()"函数的正确方法是什么?

解决方案

只需将选择器附加到定义控制器的 DOM 元素即可.喜欢

你可以从任何地方调用这个控制器函数，比如

angular.element('#myCtrl').scope().resetName()

或

angular.element(document.querySelector('#myCtrl')).scope().resetName()

在某些情况下，您可以通过简单的方式修改控制器的对象值.只需使用

angular.element(document.querySelector('#myCtrl')).scope().title = 'test';

注意:请不要忘记apply更改，因为现在angular不会自动触发apply.您需要手动触发 apply.更新 object/s 中的值后放在下面一行

angular.element(document.querySelector('#myCtrl')).scope().apply();

application. Now i want to implement an dynamic menu with AngularJS. Therefore i need to change variables in the AngularJS application from my existing application.

I'm trying with this example:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.2/angular.min.js"></script>

<div ng-app="myApp" ng-controller="myCtrl" id="myApp">

  First Name:
  <input type="text" ng-model="firstName">
  <br>Last Name:
  <input type="text" ng-model="lastName">
  <br>
  <br>Full Name: {{firstName + " " + lastName}}
  <button ng-click="resetName()">hi</button>

</div>

<script type="text/javascript">
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
  $scope.firstName = "John";
  $scope.lastName = "Doe";
  $scope.resetName = function() {
    $scope.firstName = "John1";
    $scope.lastName = "Doe1";
  }
});

</script>

<button onclick="angular.element('#myApp').scope().resetName(); angular.element('#myApp').scope().apply();">extern</button>

what would be the correct way to call the "resetName()" function from an external script?

解决方案

Just attach a selector to your DOM element where your controller is defined. like

<div ng-app="myApp" ng-controller="myCtrl" id="myCtrl">

and from anywhere you can call this controller function like

angular.element('#myCtrl').scope().resetName()

OR

angular.element(document.querySelector('#myCtrl')).scope().resetName()

In some case you need to modify a object value of controller you can do it in simple way. Just use

angular.element(document.querySelector('#myCtrl')).scope().title = 'test';

Note : Please don't forget to apply the changes because now angular will not trigger apply automatically. You need to trigger apply manually. Just put below line after updating values in object/s

angular.element(document.querySelector('#myCtrl')).scope().apply();

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