Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 11_1_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Safari/537.36
Chrome 87
Mac OS X 11.1.0
Desktop
3 years ago
Test name Executions per second
for-in 6345527.5 Ops/sec
Object.keys 3038450.2 Ops/sec
Script Preparation code:
Tests:
  • for-in

  • Object.keys