Run results for: ES6 Class vs Prototype vs Object Literal v2 with Extends

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:139.0) Gecko/20100101 Firefox/139.0

Browser: Firefox 139

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Function Prototype

28.5M/s

ES6 Class

26.0M/s

Object Literal

491K/s

View exact numbers

Test name	Executions per second
✓ Function Prototype	28,488,730 Ops/sec
ES6 Class	26,029,954 Ops/sec
Object Literal	490,684 Ops/sec

Script Preparation code:

class BaseClass {
    constructor() {}
}

class Point extends BaseClass {
    constructor(x, y) {
        super();
        this.x = x;
        this.y = y;
    }

    add(point) {
        return new Point(this.x + point.x, this.y + point.y);
    }

    sub(point) {
        return new Point(this.x - point.x, this.y - point.y);
    }
}
var Point1 = Point;

function BaseConstructor() {
}

function Point2(x, y) {
    this.x = x;
    this.y = y;
}

Point2.prototype.add = function(point) {
    return new Point2(this.x + point.x, this.y + point.y);
}

Point2.prototype.sub = function(point) {
    return new Point2(this.x - point.x, this.y - point.y);
}

Object.setPrototypeOf(Object.setPrototypeOf(Point2, BaseConstructor).prototype, BaseConstructor.prototype);

function Point3(x, y) {
    return Object.setPrototypeOf({
        x,
        y,
        add: (point) => Point3(this.x + point.x, this.y + point.y),
        sub: (point) => Point3(this.x - point.x, this.y - point.y)
    }, BaseConstructor.prototype);
}

Tests:

ES6 Class
var p1 = new Point1(10, 10); var p2 = new Point1(10, -10); var sum = p1.add(p2); var dif = p1.sub(p2);
Function Prototype
var p1 = new Point2(10, 10); var p2 = new Point2(10, -10); var sum = p1.add(p2); var dif = p1.sub(p2);
Object Literal
var p1 = Point3(10, 10); var p2 = Point3(10, -10); var sum = p1.add(p2); var dif = p1.sub(p2);

Run results for: ES6 Class vs Prototype vs Object Literal v2 with Extends

Test the speed and memory usage using 3 different techniques for constructing class objects.

ES6 Class

Function Prototype

Object Literal