Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36
Chrome 114
Linux
Desktop
one year ago
Test name Executions per second
undefined 9741801.0 Ops/sec
typeof 27094156.0 Ops/sec
in 27222010.0 Ops/sec
hasOwnProperty 24387782.0 Ops/sec
bool 26772844.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool