MeasureThat.net

Run results for: hasOwn vs hasOwnProperty vs typeof

Object lookup performance

Go to the benchmark
Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Chrome 131
Mac OS X 10.15.7
Desktop
4 months ago
Test name Executions per second
typeof 92426568.0 Ops/sec
hasOwn 44112912.0 Ops/sec
hasOwnProperty 52639972.0 Ops/sec
Script Preparation code:
AخA
 
var obj = { a: 1, b: 2, c: 3, d: 4, e: 5 };
Tests:

  • typeof

     
    typeof obj.d !== "undefined";

  • hasOwn

     
    Object.hasOwn(obj, 'd')

  • hasOwnProperty

     
    obj.hasOwnProperty( 'd' );