Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results
  • Test case name Result
    undefined
    typeof
    in
    hasOwnProperty
    bool

    Fastest: N/A

    Slowest: N/A

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Latest run results:
Run details: (Test run date: 4 years ago)
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36
Chrome 78 on Windows
View result in a separate tab
Test name Executions per second
undefined 3391172.0 Ops/sec
typeof 9000018.0 Ops/sec
in 9356926.0 Ops/sec
hasOwnProperty 8280187.0 Ops/sec
bool 9376568.0 Ops/sec