MeasureThat.net

Run results for: undefined vs. typeof vs. in vs. 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/112.0.0.0 Safari/537.36/9uiP7EnX-09
Chrome 112
Windows
Desktop
one year ago
Test name Executions per second
undefined 756829120.0 Ops/sec
typeof 829314944.0 Ops/sec
in 818518528.0 Ops/sec
hasOwnProperty 839931584.0 Ops/sec
bool 842087104.0 Ops/sec
Script Preparation code:
Tests:

  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool