Function onTimer

packages/core/src/defer/timer_scheduler.ts:18–21

(delay: number)

 * Invoking the returned function schedules a trigger.
 */
export function onTimer(delay: number) {
  return (callback: VoidFunction, injector: Injector) =>
    scheduleTimerTrigger(delay, callback, injector);
}

/**
 * Schedules a callback to be invoked after a given timeout.