Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:94.0) Gecko/20100101 Firefox/94.0
Firefox 94
Windows
Desktop
3 years ago
Test name Executions per second
undefined 875714432.0 Ops/sec
typeof 886194880.0 Ops/sec
in 893759168.0 Ops/sec
hasOwnProperty 862368128.0 Ops/sec
bool 891646016.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool