Why does Angular say “Uncaught ReferenceError: $scope is not defined”?

Question

I am not using scope outside of the controller so I am confused why I keep getting the error:

Uncaught ReferenceError: $scope is not defined

It is from line 5 which is the "pollApp.controller" line.

(app.js)

var pollApp = angular.module('myApp', ['ui.router']);

pollApp.controller('choiceCtrl', [$scope, function ($scope) {
    $scope.choices = [{body: "test"}]; //just for testing

    $scope.addChoice = function () {

        //add new choice
        if ($scope.choiceBody) {
            $scope.choices.push({
                body: $scope.choiceBody
            });
            $scope.choiceBody = null;
        }
    }
}]);

I also checked that Angular is loading fine. Any help would be awesome. Thanks.

Answer 1

当在DI array annotation使用dependency ，您需要在数组内部将其用引号括起来，例如'$scope' ，然后可以在控制器的factory函数内（例如， $scope这些依赖项的实例

pollApp.controller('choiceCtrl', ['$scope', function ($scope) {

Answer 2

  pollApp.controller('choiceCtrl', ['$scope', 

缺少引号