Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Safari/537.36
Chrome 102
Mac OS X 10.15.7
Desktop
2 years ago
Test name Executions per second
exist null 26993242.0 Ops/sec
exist hasOwnProperty 23704852.0 Ops/sec
nonexist null 27007996.0 Ops/sec
nonexist hasOwnProperty 23087290.0 Ops/sec
Script Preparation code:
Tests:
  • exist null

  • exist hasOwnProperty

  • nonexist null

  • nonexist hasOwnProperty