MeasureThat.net

Run results for: Object.hasOwn vs 'in' performance v2

comparing Object.hasOwn(obj, "foo") with "foo" in obj

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Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36
Chrome 132
Linux
Desktop
one month ago
Test name Executions per second
Object.hasOwn 36727512.0 Ops/sec
in 80147928.0 Ops/sec
Script Preparation code:
AخA
 
obj = {a: 42, b:66, c: 88}
Tests:

  • Object.hasOwn

     
    Object.hasOwn(obj, 'b')

  • in

     
    'b' in obj