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 10288231.0 Ops/sec
typeof 28428486.0 Ops/sec
in 28339316.0 Ops/sec
hasOwnProperty 25682368.0 Ops/sec
bool 29078984.0 Ops/sec
Object.prototype.hasOwnProperty 6071502.5 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool

  • Object.prototype.hasOwnProperty


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