Run results for: ES6 Class vs Prototype vs Object Literal extends Date

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36

Browser: Chrome 139

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 11 months ago

Function Prototype

99.0M/s

ES6 Class

2.4M/s

Object Literal

1.1M/s

View exact numbers

Test name	Executions per second
✓ Function Prototype	98,971,352 Ops/sec
ES6 Class	2,446,498 Ops/sec
Object Literal	1,132,970 Ops/sec

Script Preparation code:

class Point extends Date{
    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 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);
}

function Point3(x, y) {
    return {
        x,
        y,
        add: (point) => Point3(this.x + point.x, this.y + point.y),
        sub: (point) => Point3(this.x - point.x, this.y - point.y)
    }
}

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 extends Date

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

ES6 Class

Function Prototype

Object Literal