Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.114 Safari/537.36
Chrome 89
Windows
Desktop
3 years ago
Test name Executions per second
For In 132.9 Ops/sec
Object keys forEach 139.7 Ops/sec
For(;;) over Object.keys using keys.length 131.4 Ops/sec
Script Preparation code:
Tests:
  • For In

  • Object keys forEach

  • For(;;) over Object.keys using keys.length