Run results for: ES6 property (get/set) & getter/setter function & direct access to object attribute

Run details:

User agent: Mozilla/5.0 (Android 12; Mobile; rv:149.0) Gecko/149.0 Firefox/149.0

Browser: Firefox Mobile 149

Operating system: Android

Device Platform: Mobile

Date tested: 4 months ago

Setter function

427.1M/s

ES6 property (set)

423.4M/s

Directly set

413.6M/s

ES6 property (get)

388.7M/s

Getter function

387.1M/s

Directly get

386.8M/s

View exact numbers

Test name	Executions per second
✓ Setter function	427,122,944 Ops/sec
ES6 property (set)	423,353,312 Ops/sec
Directly set	413,585,248 Ops/sec
ES6 property (get)	388,726,720 Ops/sec
Getter function	387,072,480 Ops/sec
Directly get	386,773,408 Ops/sec

Script Preparation code:

class Class {
    constructor () {
        this._val = 1
    }
    get value() { return this._val }
    set value(x) { this._val = x }
    getValue() { return this._val }
    setValue(x) { this.val = x }
}
var cls = new Class()
var wtf

Tests:

ES6 property (get)
wtf = cls.value
Getter function
wtf = cls.getValue()
Directly get
wtf = cls._val
ES6 property (set)
cls.value = 1
Setter function
cls.setValue(1)
Directly set
cls._val = 1