API Reference > ui-components > Tree > ErrorObserver ErrorObserver<T> Interface ErrorObserver interface compatible with rxjs This interface ensures that consumers are not required to have rxjs as dependency. Methods Name Description complete(): void Optional error(err: any): void next(value: T): void Optional Properties Name Type Description closed undefined | boolean Defined in ui/components/src/ui-components/tree/controlled/Observable.ts Line 89 Last Updated: 11 June, 2024