MeasureThat.net

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

Object lookup performance

Go to the benchmark
Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:89.0) Gecko/20100101 Firefox/89.0
Firefox 89
Mac OS X 10.15
Desktop
3 years ago
Test name Executions per second
undefined 954024832.0 Ops/sec
typeof 1145801728.0 Ops/sec
in 1147115904.0 Ops/sec
hasOwnProperty 1140525824.0 Ops/sec
bool 1144117248.0 Ops/sec
Script Preparation code:
Tests:

  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool

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