Run results for: promise vs callback

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 15_7_8 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/19H364 Twitter for iPhone/10.5

Browser: Mobile Safari 15

Operating system: iOS 15.7.8

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
async	1597364.0 Ops/sec
callback	27782034.0 Ops/sec

Tests: