Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.131 Safari/537.36
Chrome 92
Windows
Desktop
3 years ago
Test name Executions per second
For In 2228.1 Ops/sec
Object keys forEach 2102.8 Ops/sec
For(;;) over Object.keys using keys.length 2324.4 Ops/sec
Script Preparation code:
Tests:
  • For In

  • Object keys forEach

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