@lifaon/rx-js-light/src/observable/pipes/built-in/without-notifications/others/buffer/buffer-observable.mjs

Blazing fast Observables

export function bufferObservable(subscribe, closingObservable) {
  return emit => {
    let currentBuffer = [];
    const unsubscribeOfClosingObservable = closingObservable(() => {
      const buffer = currentBuffer;
      currentBuffer = [];
      emit(buffer);
    });
    const unsubscribeOfSourceObservable = subscribe(value => {
      currentBuffer.push(value);
    });
    return () => {
      unsubscribeOfClosingObservable();
      unsubscribeOfSourceObservable();
    };
  };
}