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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.0.1 Safari/605.1.15

Browser: Safari 18

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

ES6 Class

7.1M/s

Class extends

7.0M/s

Function Prototype

5.1M/s

Object Literal

1.6M/s

View exact numbers

Test name	Executions per second
✓ ES6 Class	7,051,509 Ops/sec
Class extends	7,007,356 Ops/sec
Function Prototype	5,052,302 Ops/sec
Object Literal	1,649,422 Ops/sec

Script Preparation code:

class ClassPoint {
    constructor(x, y) {
        this.x = x;
        this.y = y;
    }

    add(point) {
        this.x = this.x + point.x
        this.y = this.y + point.y
    }

    sub(point) {
        this.x = this.x - point.x
        this.y = this.y - point.y
    }
}
function FunctionPoint(x, y){
	this.x = x;
	this.y = y;
}

FunctionPoint.prototype.add = function(point){
		this.x = this.x + point.x
        this.y = this.y + point.y
}

FunctionPoint.prototype.sub = function(point){
		this.x = this.x - point.x
        this.y = this.y - point.y
}

function ObjectPoint(x, y){
	return {
      	x, 
      	y, 
      	add:(point) => {
          this.x = this.x + point.x
          this.y = this.y + point.y
    	},
      	sub:(point) => {
          this.x = this.x - point.x
          this.y = this.y - point.y
    	},
    }  
}
class Base {
	constructor(x, y){
		this.x = x;
		this.y = y;
    }
}
class ClassPoint2 extends Base {
  
	add(point){
		this.x = this.x + point.x
        this.y = this.y + point.y
    }

	sub(point){
		this.x = this.x - point.x
        this.y = this.y - point.y
    }
}

Tests:

ES6 Class
var p1 = new ClassPoint(10, 10); var p2 = new ClassPoint(10, -10); var sum = p1.add(p2); var dif = p1.sub(p2);
Function Prototype
var p1 = new FunctionPoint(10, 10); var p2 = new FunctionPoint(10, -10); var sum = p1.add(p2); var dif = p1.sub(p2);
Object Literal
var p1 = ObjectPoint(10, 10); var p2 = ObjectPoint(10, -10); var sum = p1.add(p2); var dif = p1.sub(p2);
Class extends
var p1 = new ClassPoint2(10, 10); var p2 = new ClassPoint2(10, -10); var sum = p1.add(p2); var dif = p1.sub(p2);