Method transform

libs/template/push/src/lib/push.pipe.ts:141–166

(
    potentialObservable: ObservableInput<U> | U | null | undefined,
    config:
      | PushInput<U>
      | RxStrategyNames
      | Observable<RxStrategyNames>
      | undefined,
    renderCallback?: NextObserver<U>
  )

    config?: PushInput<U>
  ): U;
  transform<U>(
    potentialObservable: ObservableInput<U> | U | null | undefined,
    config:
      | PushInput<U>
      | RxStrategyNames
      | Observable<RxStrategyNames>
      | undefined,
    renderCallback?: NextObserver<U>
  ): U | null | undefined {
    this._renderCallback = renderCallback;
    if (config) {
      if (isRxComponentInput(config)) {
        this.strategyHandler.next(config.strategy as string);
        this._renderCallback = config.renderCallback;
        // set fallback if patchZone is not set
        this.setPatchZone(config.patchZone);
      } else {
        this.strategyHandler.next(config as string);
      }
    }
    this.templateObserver.next(potentialObservable);
    if (!this.subscription) {
      this.subscription = this.handleChangeDetection();
    }
    return this.renderedValue as U;
  }

  /** @internal */
  ngOnDestroy(): void {