Run results for: promise vs callback

Run details:

User agent: Mozilla/5.0 (Android 8.0.0; Mobile; rv:68.0) Gecko/68.0 Firefox/68.0

Browser: Firefox Mobile 68

Operating system: Android 8.0.0

Device Platform: Mobile

Date tested: 3 years ago

Test name	Executions per second
async	61754.4 Ops/sec
callback	34874948.0 Ops/sec

Tests: