Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:50.0) Gecko/20100101 Firefox/50.0
Firefox 50
Mac OS X 10.12
Other
7 years ago
Test name Executions per second
undefined 251916704.0 Ops/sec
typeof 468031456.0 Ops/sec
in 38425464.0 Ops/sec
hasOwnProperty 47261684.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty


;