MeasureThat.net

Run results for: instanceof vs hasOwnProperty

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:133.0) Gecko/20100101 Firefox/133.0
Firefox 133
Windows
Desktop
3 months ago
Test name Executions per second
instanceOf 147178272.0 Ops/sec
hasOwnProperty 1670237184.0 Ops/sec
Script Preparation code:
AخA
 
var obj = {a: 1}
Tests:

  • instanceOf

     
    obj instanceof Object

  • hasOwnProperty

     
    obj.hasOwnProperty('a')