Run results for: promise vs callback

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.2 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 18

Operating system: iOS 18.2

Device Platform: Mobile

Date tested: one year ago

callback

69.5M/s

async

9.1M/s

View exact numbers

Test name	Executions per second
✓ callback	69,468,808 Ops/sec
async	9,105,258 Ops/sec

Tests: