Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.117 Safari/537.36 SECSSOBrowserChrome
Chrome 79
Windows
Desktop
4 years ago
Test name Executions per second
undefined 2709017.5 Ops/sec
typeof 8179607.5 Ops/sec
in 8328712.0 Ops/sec
hasOwnProperty 6868090.5 Ops/sec
bool 8309260.5 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool


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