Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Chrome 130
Windows
Desktop
one month ago
Test name Executions per second
undefined 3373607.2 Ops/sec
typeof 7046907.0 Ops/sec
in 6974597.0 Ops/sec
hasOwnProperty 6588188.5 Ops/sec
bool 7048253.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool