Run results for: ES6 property (get/set) & getter/setter function vs direct access to object attribute (private and not) v2

Run details:

User agent: Mozilla/5.0 (Android 13; Mobile; rv:145.0) Gecko/145.0 Firefox/145.0

Browser: Firefox Mobile 145

Operating system: Android

Device Platform: Mobile

Date tested: 10 months ago

Private Setter function

430.5M/s

Null Prototype Directly Set

427.8M/s

Private ES6 property (set)

426.5M/s

Public ES6 property (set)

420.4M/s

Public Setter function

385.2M/s

Private ES6 property (get)

331.9M/s

Frozen Object Literal (Get)

330.3M/s

Public ES6 property (get)

330.2M/s

Null Prototype Directly Get

330.1M/s

Private Getter function

329.0M/s

Public Getter function

328.6M/s

Frozen Object Literal Getter Function

255.1M/s

Frozen Object Literal (Set)

12.9M/s

Frozen Object Literal Setter Function;

12.3M/s

View exact numbers

Test name	Executions per second
✓ Private Setter function	430,546,720 Ops/sec
Null Prototype Directly Set	427,756,480 Ops/sec
Private ES6 property (set)	426,525,568 Ops/sec
Public ES6 property (set)	420,400,896 Ops/sec
Public Setter function	385,235,264 Ops/sec
Private ES6 property (get)	331,943,680 Ops/sec
Frozen Object Literal (Get)	330,315,744 Ops/sec
Public ES6 property (get)	330,210,592 Ops/sec
Null Prototype Directly Get	330,110,656 Ops/sec
Private Getter function	328,996,416 Ops/sec
Public Getter function	328,588,736 Ops/sec
Frozen Object Literal Getter Function	255,126,336 Ops/sec
Frozen Object Literal (Set)	12,879,115 Ops/sec
Frozen Object Literal Setter Function;	12,328,561 Ops/sec

Script Preparation code:

var nullProto = Object.create( null );
nullProto.value = 0;

var frozen = Object.freeze( {
    _value: 0,
    get value() {
        return this._value;
    },
    set value(x) {
        this._value = x
    },
    getValue() {
        return this._value
    },
    setValue(x) {
        this._value = x
    }
} );

class Private {
    #value = 0;
    constructor() {
        this.#value = 1
    }
    get value() {
        return this.#value
    }
    set value(x) {
        this.#value = x
    }
    getValue() {
        return this.#value
    }
    setValue(x) {
        this.#value = x
    }
}

class Public {
    value = 0;
    constructor() {
        this.value = 1
    }
    get value() {
        return this.value
    }
    set value(x) {
        this.value = x
    }
    getValue() {
        return this.value
    }
    setValue(x) {
        this.value = x
    }
}

var private = new Private();
var public = new Public();
var val = 0;

Tests:

Public ES6 property (get)
val = public.value;
Public Getter function
val = public.getValue();
Public ES6 property (set)
public.value = 1;
Public Setter function
public.setValue(1);
Private ES6 property (get)
val = private.value;
Private Getter function
val = private.getValue();
Private ES6 property (set)
private.value = 2;
Private Setter function
private.setValue(2);
Null Prototype Directly Set
nullProto.value = 3;
Null Prototype Directly Get
val = nullProto.value;
Frozen Object Literal (Get)
val = frozen.value;
Frozen Object Literal (Set)
frozen.value = 4;
Frozen Object Literal Getter Function
val = frozen.getValue();
Frozen Object Literal Setter Function;
val = frozen.setValue( 4 );