Could you elaborate on the functionality of the $Scope variable in AngularJS without needing to declare it in any specific place?
Could you elaborate on the functionality of the $Scope variable in AngularJS without needing to declare it in any specific place?
It has been officially stated. For instance, when creating a controller, you provide a $scope object. Quoting from the Angular guide page:
angular.module('scopeExample', [])
.controller('MyController', ['$scope', function($scope) {
$scope.username = 'World';
$scope.sayHello = function() {
$scope.greeting = 'Hello ' + $scope.username + '!';
};
}]);
Take note of the '$scope', function($scope) - with the help of Angular's dependency injection system, you are injecting the $scope object.
Angular's dependency injector service is responsible for injecting it.
Binding a controller to the view using ng-controller creates a new ChildScope that inherits from $rootScope.
The service used for injection is called $injector.
$injector is utilized for retrieving object instances defined by providers, instantiating types, invoking methods, and loading modules.
For more information on the $injector service, check out the angular documentation.
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