Method updateControlValue

src/dev-app/slider/slider-demo.ts:91–96

(input: EventTarget | null)

    this.disabled = (input as HTMLInputElement).checked;
  }
  updateControlValue(input: EventTarget | null): void {
    if (!input) {
      return;
    }
    this.control.setValue((input as HTMLInputElement).value);
  }
  updateControlDisabledState(input: EventTarget | null): void {
    if (!input) {
      return;