Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36 Edg/87.0.664.66
Chrome 87
Windows
Desktop
3 years ago
Test name Executions per second
undefined 1913592.8 Ops/sec
typeof 5354841.5 Ops/sec
in 5196853.5 Ops/sec
hasOwnProperty 4643288.5 Ops/sec
bool 4852432.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool


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