Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • truthy

  • local undef

  • isDefined

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results
  • Test case name Result
    undefined
    typeof
    in
    hasOwnProperty
    truthy
    local undef
    isDefined

    Fastest: N/A

    Slowest: N/A

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/87.0.4280.88 Safari/537.36
Chrome 87 on Windows
View result in a separate tab
Test name Executions per second
undefined 2664147.2 Ops/sec
typeof 7904694.0 Ops/sec
in 8145881.0 Ops/sec
hasOwnProperty 7358465.5 Ops/sec
truthy 8002242.5 Ops/sec
local undef 4253809.5 Ops/sec
isDefined 4235198.0 Ops/sec