Run results for: RxJS filter vs if

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 14_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/87.0.4280.163 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 87

Operating system: iOS 14.4

Device Platform: Mobile

Date tested: 3 years ago

Test name	Executions per second
If	4183.4 Ops/sec
Filter	3488.5 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/rxjs/6.6.2/rxjs.umd.min.js'></script>

Tests:

If
const stream = new rxjs.Subject(); stream.subscribe(v => { if(v) { console.log(v); } }); stream.next(true); stream.next(false); stream.next(true);
Filter
const stream = new rxjs.Subject(); stream.pipe( rxjs.operators.filter(v => v) ).subscribe(v => { console.log(v); }); stream.next(true); stream.next(false); stream.next(true);

Run results for: RxJS filter vs if

If

Filter