Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Chrome 67
Mac OS X 10.13.5
Desktop
6 years ago
Test name Executions per second
undefined 3301257.8 Ops/sec
typeof 12691416.0 Ops/sec
in 11467280.0 Ops/sec
hasOwnProperty 10678456.0 Ops/sec
bool 12729290.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool


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