MeasureThat.net

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

Object lookup performance

Go to the benchmark
Run details:
Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:79.0) Gecko/20100101 Firefox/79.0
Firefox 79
Fedora
Desktop
4 years ago
Test name Executions per second
undefined 160915792.0 Ops/sec
typeof 303480320.0 Ops/sec
in 225549776.0 Ops/sec
hasOwnProperty 220435568.0 Ops/sec
bool 308610432.0 Ops/sec
Script Preparation code:
Tests:

  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool

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