MeasureThat.net

Run results for: undefined vs. typeof vs. in vs. hasOwnProperty [Ritesh]

Object lookup performance

Go to the benchmark
Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36
Chrome 78
Mac OS X 10.14.6
Desktop
4 years ago
Test name Executions per second
undefined 6313476.5 Ops/sec
typeof 18507128.0 Ops/sec
in 18799714.0 Ops/sec
hasOwnProperty 16725749.0 Ops/sec
bool 18782656.0 Ops/sec
Script Preparation code:
Tests:

  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool

;