MeasureThat.net

Run results for: instanceof vs hasOwnProperty

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.122 Safari/537.36
Chrome 81
Mac OS X 10.14.6
Desktop
4 years ago
Test name Executions per second
instanceOf 4313460.0 Ops/sec
hasOwnProperty 11994615.0 Ops/sec
Script Preparation code:
AخA
 
var obj = {a: 1}
Tests:

  • instanceOf

     
    obj instanceof Object

  • hasOwnProperty

     
    obj.hasOwnProperty('a')