Run details:
Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0
Firefox 109
Windows 7
Desktop
one year ago
Test name Executions per second
undefined 317524992.0 Ops/sec
typeof 318225408.0 Ops/sec
in 317297600.0 Ops/sec
hasOwnProperty 316736480.0 Ops/sec
bool 318931328.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool