javascript - Angular，用两个点设置范围变量

Question

用两个点设置作用域变量时遇到问题。请参阅下文了解我的 Controller 和我的错误。

.controller('CreateSubject', function ($scope, factory, $cookieStore, $location, $rootScope){
    $scope.subject.prerequisit = [];
})

我得到了错误:

angular.js:13236 TypeError: Cannot set property 'prerequisit' of undefined at new

Answer 1

您必须遵循的语法是:

$scope.subject = { prerequisit : [] };