javascript - How to add providers to Injector dynamically?

Question

Each component can specify new Providers using its providers property in ComponentMetadata.

Is there a way to specify providers dynamically from, say, constructor of the component?

Answer 1

I used useFactory to determine what class will be used for provide. I share for whom concern.

In component ts

@Component({
    selector: 'app-chart',
    templateUrl: './chart.component.html',
    styleUrls: ['./chart.component.scss'],
    providers: [
        { provide: DateTimeAdapter, useClass: MomentDateTimeAdapter },
        { provide: OWL_DATE_TIME_FORMATS, useValue: CUSTOM_FORMATS },
        { provide: OwlDateTimeIntl, deps: [SettingService],
            useFactory: (settingsService) => settingsService.getLanguage()
        }
    ]
})

In service ts get class instance

@Injectable()
export class SettingService {
    public getLanguage(){
       return this.translate.currentLang == "ko" ? new KoreanIntl() : new DefaultIntl;
    }
}