Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36
Chrome 81
Mac OS X 10.15.4
Desktop
4 years ago
Test name Executions per second
undefined 5418807.0 Ops/sec
typeof 16469631.0 Ops/sec
in 16535279.0 Ops/sec
hasOwnProperty 14489536.0 Ops/sec
bool 16591459.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool


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