MeasureThat.net

Run results for: non null vs. typeof vs. in vs. Object.hasOwnProperty

Object lookup performance

Go to the benchmark
Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36
Chrome 95
Windows
Desktop
3 years ago
Test name Executions per second
undefined 5752716.5 Ops/sec
typeof 5797996.5 Ops/sec
in 5772710.5 Ops/sec
hasOwnProperty 4835656.0 Ops/sec
Script Preparation code:
Tests:

  • undefined

  • typeof

  • in

  • hasOwnProperty

;