Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36
Chrome 119
Linux
Desktop
one year ago
Test name Executions per second
undefined 6762817.5 Ops/sec
typeof 22374970.0 Ops/sec
in 21995924.0 Ops/sec
hasOwnProperty 19519440.0 Ops/sec
bool 22237558.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool