Collect several events before posting using Subject

Question

i need to collect several event, not every time, before I will send the request.

const subject = new Subject();
subject.subscribe((event) => post(event));
const keydown$ = fromEvent(document, 'keydown');
keydown$.subscribe(d => subject.next(d);

Answer 1

You're looking for bufferTime:

keydown$.bufferTime(2500).subscribe(…);