@lifaon/rx-js-light/src/observable/pipes/built-in/without-notifications/time-related/debounce-microtask/debounce-microtask-observable.mjs

Blazing fast Observables

export function debounceMicrotaskObservable(subscribe) {
  return emit => {
    let microtaskCount = 0;
    const incrementMicrotaskCount = () => {
      return microtaskCount = (microtaskCount + 1) % 0x80000000;
    };
    const unsubscribe = subscribe(value => {
      const currentMicroTaskId = incrementMicrotaskCount();
      queueMicrotask(() => {
        if (currentMicroTaskId === microtaskCount) {
          emit(value);
        }
      });
    });
    return () => {
      incrementMicrotaskCount();
      unsubscribe();
    };
  };
}