Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:120.0) Gecko/20100101 Firefox/120.0
Firefox 120
Mac OS X 10.15
Desktop
one year ago
Test name Executions per second
undefined 829036352.0 Ops/sec
typeof 831369408.0 Ops/sec
in 830453120.0 Ops/sec
hasOwnProperty 831962688.0 Ops/sec
bool 830474688.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool