Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36 Edg/92.0.902.84
Chrome 92
Windows
Desktop
3 years ago
Test name Executions per second
undefined 4547281.0 Ops/sec
typeof 11258386.0 Ops/sec
in 11082199.0 Ops/sec
hasOwnProperty 10561378.0 Ops/sec
bool 11251360.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool


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