MeasureThat.net

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

Object lookup performance

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Run details:
Mozilla/5.0 (Android 12; Mobile; rv:96.0) Gecko/96.0 Firefox/96.0
Firefox Mobile 96
Android
Mobile
2 years ago
Test name Executions per second
undefined 540453376.0 Ops/sec
typeof 541038208.0 Ops/sec
in 540491456.0 Ops/sec
hasOwnProperty 541021056.0 Ops/sec
bool 541962176.0 Ops/sec
Script Preparation code:
Tests:

  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool

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