如何在AngularJS指令中访问全局js变量

我创建了一个有效的CodePen示例，演示了如何在AngularJS中正确执行此操作。Angular$window服务应该用于访问任何全局对象，因为直接访问

window

HTML：

<section ng-app="myapp" ng-controller="MainCtrl">  Value of global variable read by AngularJS: {{variable1}}</section>

Javascript：

// global variable outside angularvar variable1 = true;var app = angular.module('myapp', []);app.controller('MainCtrl', ['$scope', '$window', function($scope, $window) {  $scope.variable1 = $window.variable1;}]);