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 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 121

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Public Setter function

8.4M/s

Public ES6 property (set)

8.4M/s

Private Setter function

8.4M/s

Private ES6 property (set)

8.3M/s

Null Prototype Directly Set

6.8M/s

Private ES6 property (get)

4.0M/s

Public ES6 property (get)

4.0M/s

Null Prototype Directly Get

3.8M/s

Frozen Object Literal Getter Function

3.6M/s

Private Getter function

3.5M/s

Public Getter function

3.5M/s

Frozen Object Literal (Get)

3.4M/s

Frozen Object Literal (Set)

1.2M/s

Frozen Object Literal Setter Function;

699K/s

View exact numbers

Test name	Executions per second
✓ Public Setter function	8,448,258 Ops/sec
Public ES6 property (set)	8,412,530 Ops/sec
Private Setter function	8,368,438 Ops/sec
Private ES6 property (set)	8,281,598 Ops/sec
Null Prototype Directly Set	6,835,936 Ops/sec
Private ES6 property (get)	3,996,578 Ops/sec
Public ES6 property (get)	3,976,103 Ops/sec
Null Prototype Directly Get	3,768,958 Ops/sec
Frozen Object Literal Getter Function	3,628,792 Ops/sec
Private Getter function	3,518,101 Ops/sec
Public Getter function	3,502,211 Ops/sec
Frozen Object Literal (Get)	3,434,296 Ops/sec
Frozen Object Literal (Set)	1,172,441 Ops/sec
Frozen Object Literal Setter Function;	699,181 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 );