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/84.0.4147.105 Safari/537.36 OPR/70.0.3728.119
Opera 70
Windows
Desktop
4 years ago
Test name Executions per second
undefined 3958159.2 Ops/sec
typeof 3970360.5 Ops/sec
in 4010483.0 Ops/sec
hasOwnProperty 3539863.0 Ops/sec
Script Preparation code:
Tests:

  • undefined

  • typeof

  • in

  • hasOwnProperty

;