Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.80 Safari/537.36
Chrome 86
Mac OS X 10.15.5
Desktop
3 years ago
Test name Executions per second
undefined 5098152.0 Ops/sec
typeof 15784297.0 Ops/sec
in 15699968.0 Ops/sec
hasOwnProperty 13749840.0 Ops/sec
bool 15671279.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool


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