Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36
Chrome 117
Mac OS X 10.15.7
Desktop
7 months ago
Test name Executions per second
undefined 11712470.0 Ops/sec
typeof 33399240.0 Ops/sec
in 33478990.0 Ops/sec
hasOwnProperty 27391610.0 Ops/sec
bool 33151220.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool