MeasureThat.net

Run results for: undefined vs. typeof vs. in vs. hasOwnProperty

Object lookup performance

Go to the benchmark
Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36
Chrome 112
Linux
Desktop
one year ago
Test name Executions per second
undefined 6730048.0 Ops/sec
typeof 21582626.0 Ops/sec
in 21287482.0 Ops/sec
hasOwnProperty 17123072.0 Ops/sec
bool 22086426.0 Ops/sec
Script Preparation code:
Tests:

  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool

;