Run details:
Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:100.0) Gecko/20100101 Firefox/100.0
Firefox 100
Ubuntu
Desktop
2 years ago
Test name Executions per second
undefined 117548736.0 Ops/sec
typeof 106796312.0 Ops/sec
in 109515928.0 Ops/sec
hasOwnProperty 102010816.0 Ops/sec
bool 106526968.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool