Script Preparation code:
Tests:
  • key in object

  • !!object[key]

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results
  • Test case name Result
    key in object
    !!object[key]

    Fastest: N/A

    Slowest: N/A

Latest run results:
Run details: (Test run date: 6 years ago)
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36
Chrome 70 on Mac OS X 10.14.0
View result in a separate tab
Test name Executions per second
key in object 6845598.5 Ops/sec
!!object[key] 7531414.0 Ops/sec