MeasureThat.net

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

Object lookup performance

Go to the benchmark
Run details:
Mozilla/5.0 (Linux; Android 13; Pixel 7 Pro) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Mobile Safari/537.36
Chrome Mobile 112
Android
Mobile
one year ago
Test name Executions per second
undefined 4885163.5 Ops/sec
typeof 15846448.0 Ops/sec
in 15898537.0 Ops/sec
hasOwnProperty 14381237.0 Ops/sec
bool 15898949.0 Ops/sec
Script Preparation code:
Tests:

  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool

;