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 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Browser: Chrome 122

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Public ES6 property (get)	4814027.0 Ops/sec
Public Getter function	4825748.5 Ops/sec
Public ES6 property (set)	11363714.0 Ops/sec
Public Setter function	11406515.0 Ops/sec
Private ES6 property (get)	4819903.5 Ops/sec
Private Getter function	4835212.0 Ops/sec
Private ES6 property (set)	11260679.0 Ops/sec
Private Setter function	11279398.0 Ops/sec
Null Prototype Directly Set	10523267.0 Ops/sec
Null Prototype Directly Get	4690172.5 Ops/sec
Frozen Object Literal (Get)	4342103.0 Ops/sec
Frozen Object Literal (Set)	1503870.9 Ops/sec
Frozen Object Literal Getter Function	4502484.0 Ops/sec
Frozen Object Literal Setter Function;	862340.7 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 );

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

Public ES6 property (get)

Public Getter function

Public ES6 property (set)

Public Setter function

Private ES6 property (get)

Private Getter function

Private ES6 property (set)

Private Setter function

Null Prototype Directly Set

Null Prototype Directly Get

Frozen Object Literal (Get)

Frozen Object Literal (Set)

Frozen Object Literal Getter Function

Frozen Object Literal Setter Function;