Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36
Chrome 109
Windows
Desktop
one year ago
Test name Executions per second
undefined 1700237.0 Ops/sec
typeof 5266003.5 Ops/sec
in 5793627.5 Ops/sec
hasOwnProperty 4974282.0 Ops/sec
bool 5179799.0 Ops/sec
?. 5058121.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool

  • ?.