Angular 2 get service by string name

Question

Is there a way to get an instance of an angular 2 injection service only by service name?

For example, in angular 1 you can write:

var service = $injector.get('ServiceName');

and the variable servicewill receive an instance of the service.

I would really appreciate your help!

Answer 1

If you specify it by name, you can enter it by name

@NgModule({
  providers: [
      ServiceName, 
      {provide: 'ServiceName', useExisting: ServiceName}
  ],
  ...

Answer 2

You can use Explicit Injector Creation using the Injector Class

injector = ReflectiveInjector.resolveAndCreate([ServiceClass, Dependency1Class, Dependency2Class]);

let service= injector.get(ServiceClass); //pass the type not the name