Script Preparation code:
Tests:
  • For In

  • Object keys forEach

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

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results
  • Test case name Result
    For In
    Object keys forEach
    For(;;) over Object.keys using keys.length

    Fastest: N/A

    Slowest: N/A

Latest run results:
Run details: (Test run date: 3 years ago)
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 on Windows
View result in a separate tab
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