Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:101.0) Gecko/20100101 Firefox/101.0
Firefox 101
Windows
Desktop
2 years ago
Test name Executions per second
undefined 790246912.0 Ops/sec
typeof 1021983360.0 Ops/sec
in 880159360.0 Ops/sec
hasOwnProperty 863986432.0 Ops/sec
bool 1036319168.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool