Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.106 Safari/537.36
Chrome 91
Linux
Desktop
3 years ago
Test name Executions per second
for-in 1395.7 Ops/sec
Object.keys for each 523.3 Ops/sec
Object.keys for 493.1 Ops/sec
Script Preparation code:
Tests:
  • for-in

  • Object.keys for each

  • Object.keys for