Run details:
Mozilla/5.0 (X11; Linux x86_64; rv:92.0) Gecko/20100101 Firefox/92.0
Firefox 92
Linux
Desktop
3 years ago
Test name Executions per second
undefined 989481088.0 Ops/sec
typeof 1220266880.0 Ops/sec
in 1218004608.0 Ops/sec
hasOwnProperty 1215485952.0 Ops/sec
bool 1217367936.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool