Run details:
Mozilla/5.0 (iPhone; CPU iPhone OS 13_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.5 Mobile/15E148 Safari/604.1
Mobile Safari 13
iOS 13.3.1
Mobile
4 years ago
Test name Executions per second
undefined 6109637.0 Ops/sec
typeof 15376449.0 Ops/sec
in 15336881.0 Ops/sec
hasOwnProperty 15232231.0 Ops/sec
bool 15301199.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool


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