Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.5112.81 Safari/537.36 Edg/104.0.1293.47
Chrome 104
Windows
Desktop
2 years ago
Test name Executions per second
undefined 3737219.0 Ops/sec
typeof 9776615.0 Ops/sec
in 10234009.0 Ops/sec
hasOwnProperty 9069954.0 Ops/sec
bool 10427333.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool