Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36 Edg/108.0.1462.46
Chrome 108
Windows
Desktop
one year ago
Test name Executions per second
undefined 3460944.0 Ops/sec
typeof 10087410.0 Ops/sec
in 10075720.0 Ops/sec
hasOwn 3241158.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwn