Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:92.0) Gecko/20100101 Firefox/92.0
Firefox 92
Mac OS X 10.14
Desktop
3 years ago
Test name Executions per second
undefined 1047438464.0 Ops/sec
typeof 1200895232.0 Ops/sec
in 1199705984.0 Ops/sec
hasOwnProperty 1208613888.0 Ops/sec
bool 1208779520.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool