Run results for: Object.keys.includes vs object.hasOwnProperty

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Safari/537.36

Browser: Chrome 102

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

object.hasOwnProperty

20K/s

Object.keys.includes

5K/s

View exact numbers

Test name	Executions per second
✓ object.hasOwnProperty	20,123 Ops/sec
Object.keys.includes	4,864 Ops/sec

Script Preparation code:

var obj = {};

for (let i=0; i<100; i++) {
	obj[`${i*Math.random()}`] = i-(Math.random()*Math.random());
}

Tests:

Object.keys.includes
for (let i=0; i<100; i++) { if (Object.keys(obj).includes(`${Math.random()*Math.random()}`)) console.log(true); }
object.hasOwnProperty
for (let i=0; i<100; i++) { if (obj.hasOwnProperty(`${Math.random()*Math.random()}`)) console.log(true); }