MeasureThat.net

Run results for: instanceof vs hasOwnProperty

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.90 Safari/537.36
Chrome 89
Windows
Desktop
4 years ago
Test name Executions per second
instanceOf 1340360.8 Ops/sec
hasOwnProperty 3714660.2 Ops/sec
Script Preparation code:
AخA
 
var obj = {a: 1}
Tests:

  • instanceOf

     
    obj instanceof Object

  • hasOwnProperty

     
    obj.hasOwnProperty('a')