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; rv:108.0) Gecko/20100101 Firefox/108.0
Firefox 108
Linux
Desktop
one year ago
Test name Executions per second
undefined 231257216.0 Ops/sec
typeof 178542688.0 Ops/sec
in 191421568.0 Ops/sec
hasOwnProperty 256594208.0 Ops/sec
bool 189568688.0 Ops/sec
Script Preparation code:
Tests:

  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool

;