Run results for: ES6 property (get/set) & getter/setter function vs direct access vs closure

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 139

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Public - ES6 property (set)

54.2M/s

Public - Setter function

52.0M/s

Closure - Getter function

45.8M/s

Private - ES6 property (set)

45.5M/s

Private - Setter function

45.0M/s

Public - Directly set

38.2M/s

Closure - Setter function

36.8M/s

Public - Directly get

4.6M/s

Public - Getter function

4.6M/s

Public - ES6 property (get)

4.4M/s

Private - Getter function

3.6M/s

Private - ES6 property (get)

3.4M/s

View exact numbers

Test name	Executions per second
✓ Public - ES6 property (set)	54,161,688 Ops/sec
Public - Setter function	51,987,656 Ops/sec
Closure - Getter function	45,771,964 Ops/sec
Private - ES6 property (set)	45,463,904 Ops/sec
Private - Setter function	44,994,928 Ops/sec
Public - Directly set	38,212,716 Ops/sec
Closure - Setter function	36,820,068 Ops/sec
Public - Directly get	4,587,356 Ops/sec
Public - Getter function	4,568,619 Ops/sec
Public - ES6 property (get)	4,413,396 Ops/sec
Private - Getter function	3,564,668 Ops/sec
Private - ES6 property (get)	3,406,574 Ops/sec

Script Preparation code:

var Closure = (function initClosure() {
    let value = 0;
    return {
        getValue: function getValue() {
            return value;
        },
        setValue: function setValue(x) {
            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 - Directly get
val = public.value;
Public - ES6 property (set)
public.value = 1;
Public - Setter function
public.setValue( 1 );
Public - Directly set
public.value = 1;
Private - ES6 property (get)
val = private.value;
Private - Getter function
val = private.getValue();
Private - ES6 property (set)
private.value = 1;
Private - Setter function
private.setValue( 1 );
Closure - Getter function
Closure.getValue();
Closure - Setter function
Closure.setValue( 1 );