Run results for: fromEvent vs addEventListener?

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36

Browser: Chrome 143

Operating system: Windows

Device Platform: Desktop

Date tested: 6 months ago

fromEvent

4K/s

addEventListener

1K/s

View exact numbers

Test name	Executions per second
✓ fromEvent	4,031 Ops/sec
addEventListener	1,105 Ops/sec

HTML Preparation code:

<script src='https://unpkg.com/rxjs@^7/dist/bundles/rxjs.umd.min.js'></script>

Tests:

fromEvent
let { fromEvent, throttleTime, map, scan } = rxjs; fromEvent(document, 'click') .subscribe((event) => {});
addEventListener
//let lastClick = Date.now() - rate; document.addEventListener('click', (event) => {});