Run results for: ES6 Class vs Prototype vs Object Literal v2 with Extends v3

Test name	Executions per second
✓ Object Literal	1,500,929 Ops/sec
ES6 Class	213,683 Ops/sec
Function Prototype	157,098 Ops/sec

ES6 Class

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;

var p1 = new Point1(10, 10);
var p2 = new Point1(10, -10);
var sum = p1.add(p2);
var dif = p1.sub(p2);

Function Prototype

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);

var p1 = new Point2(10, 10);
var p2 = new Point2(10, -10);
var sum = p1.add(p2);
var dif = p1.sub(p2);

Object Literal

function PointX(x, y) {
    return {}
}

function Point3(x, y) {
    return {
        ...PointX(x, y),
        x,
        y,
        add: (point) => Point3(x + point.x, y + point.y),
        sub: (point) => Point3(x - point.x, y - point.y)
    }
}

var p1 = new Point3(10, 10);
var p2 = new 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 v3

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

ES6 Class

Function Prototype

Object Literal