Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0
Firefox 90
Windows
Desktop
3 years ago
Test name Executions per second
undefined 855090240.0 Ops/sec
typeof 857859200.0 Ops/sec
in 896443776.0 Ops/sec
hasOwnProperty 855494400.0 Ops/sec
bool 886263680.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool