EventEmitter class acts both as an observer and observable.

Related MCQs

• Angular framework provides event binding using in-built event as well as custom event. Custom events are the EventEmitter instances. To create a custom event we need to create an instance of EventEmitter annotated by . . . . . . .
• EventEmitter class’s simple interface, which basically encompass two methods . . . . . . . . . can therefore be used to trigger custom events and listen to events as well, both synchronously or asynchronously.
• EventEmitter class is used by directives and components to emit custom Events.
• @Output() myEvent = new EventEmitter();
• Angular 2 is entirely component based. Controllers and $scope are no longer used. They have been replaced by . . . . . . . and . . . . . . . .
• Angular 2 is an open source JavaScript framework to build web applications in HTML and JavaScript and has been conceived as a . . . . . . . . .
• Any change to the . . . . and . . . . . properties affects these bindings and consequently the user interface content.
• The drawback of inline bindings is that AngularJS will not find and process every set of {{ and }} characters in your content.
• When adding . . . . . and . . . . . . to a view, we are essentially instructing Angular to create data bindings that keep the model and view in sync.
• ng-app directive defines and links an AngularJS application to HTML.