Run results for: Object.getOwnPropertyDescriptor().value vs Reflect.get() vs object[]

Run details:

User agent: Mozilla/5.0 (Android 11; Mobile; rv:136.0) Gecko/136.0 Firefox/136.0

Browser: Firefox Mobile 136

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

object[]

536.1M/s

Reflect.get()

76.3M/s

Object.getOwnPropertyDescriptor()

5.1M/s

View exact numbers

Test name	Executions per second
✓ object[]	536,081,696 Ops/sec
Reflect.get()	76,338,728 Ops/sec
Object.getOwnPropertyDescriptor()	5,060,564 Ops/sec

Tests:

Object.getOwnPropertyDescriptor()
let object1 = { property1: 42 }; Object.getOwnPropertyDescriptor(object1, 'property1').value; Object.getOwnPropertyDescriptor(object1, 'noSuchProperty')?.value;
Reflect.get()
let object1 = { property1: 42 }; Reflect.get(object1, 'property1'); Reflect.get(object1, 'noSuchProperty');
object[]
let object1 = { property1: 42 }; object1["property1"] object1["noSuchProperty"]