Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36
Chrome 110
Windows
Desktop
one year ago
Test name Executions per second
undefined 6238816.0 Ops/sec
typeof 16714537.0 Ops/sec
in 16842666.0 Ops/sec
hasOwnProperty 14619351.0 Ops/sec
bool 16833308.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool