MeasureThat.net

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

Object lookup performance

Go to the benchmark
Run details:
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36
Chrome 127
Android
Desktop
2 months ago
Test name Executions per second
undefined 1058332.5 Ops/sec
typeof 3074335.8 Ops/sec
in 3083047.8 Ops/sec
hasOwnProperty 2827364.8 Ops/sec
bool 3103701.8 Ops/sec
Script Preparation code:
Tests:

  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool

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