Run details:
Mozilla/5.0 (Linux; Android 9; SM-T720) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36
Chrome 81
Android
Tablet
4 years ago
Test name Executions per second
undefined 1661883.5 Ops/sec
typeof 4496404.5 Ops/sec
in 4486873.5 Ops/sec
hasOwnProperty 4141625.8 Ops/sec
bool 4466574.5 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool


;