Run results for: promise vs callback

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.6478.128 Safari/537.36 Edg/126.0.2592.113 NetHelper70

Browser: Chrome 126

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

callback

125.2M/s

async

3.5M/s

View exact numbers

Test name	Executions per second
✓ callback	125,227,760 Ops/sec
async	3,470,707 Ops/sec

Tests:

async
(async() => { await true; })();
callback
((next) => {next()})(() => {});