Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36
Chrome 104
Linux
Desktop
2 years ago
Test name Executions per second
undefined 3960781.5 Ops/sec
typeof 12806671.0 Ops/sec
in 12940531.0 Ops/sec
hasOwnProperty 10735065.0 Ops/sec
bool 11582914.0 Ops/sec
Object.prototype.hasOwnProperty 2219790.8 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool

  • Object.prototype.hasOwnProperty


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