Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.72 Safari/537.36
Chrome 90
Linux
Desktop
3 years ago
Test name Executions per second
undefined 5116832.0 Ops/sec
typeof 15799420.0 Ops/sec
in 16076139.0 Ops/sec
hasOwnProperty 13218379.0 Ops/sec
bool 15223334.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool


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