Run details:
Mozilla/5.0 (Android 11; Mobile; rv:90.0) Gecko/90.0 Firefox/90.0
Firefox Mobile 90
Android
Mobile
3 years ago
Test name Executions per second
undefined 712979136.0 Ops/sec
typeof 711700224.0 Ops/sec
in 713656512.0 Ops/sec
hasOwnProperty 715974400.0 Ops/sec
bool 716404352.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool