Benchmark: ES6 Class vs Prototype vs Object Literal (fixed)

Tests:

ES6 Class

class Point {
	constructor(x, y){
		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 p1 = new Point(10, 10);
var p2 = new Point(10, -10);
var sum = p1.add(p2);
var dif = p1.sub(p2);

​x
 
class Point {    constructor(x, y){        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 p1 = new Point(10, 10);var p2 = new Point(10, -10);var sum = p1.add(p2);var dif = p1.sub(p2);

Function Prototype

function Point(x, y){
	this.x = x;
	this.y = y;
}

Point.prototype.add = function(point){
    return new Point(this.x + point.x, this.y + point.y);
}

Point.prototype.sub = function(point){
	return new Point(this.x - point.x, this.y - point.y);
}

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

 
function Point(x, y){    this.x = x;    this.y = y;}​Point.prototype.add = function(point){    return new Point(this.x + point.x, this.y + point.y);}​Point.prototype.sub = function(point){    return new Point(this.x - point.x, this.y - point.y);}​var p1 = new Point(10, 10);var p2 = new Point(10, -10);var sum = p1.add(p2);var dif = p1.sub(p2);​

Object Literal

function Point(x, y){
	return {
      	x, 
      	y, 
      	add (point) { return Point(this.x + point.x, this.y + point.y)},
	 	sub (point) { return Point(this.x - point.x, this.y - point.y)}
    }  
}

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

 
function Point(x, y){    return {        x,         y,         add (point) { return Point(this.x + point.x, this.y + point.y)},        sub (point) { return Point(this.x - point.x, this.y - point.y)}    }  }​var p1 = Point(10, 10);var p2 = Point(10, -10);var sum = p1.add(p2);var dif = p1.sub(p2);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Experimental features:

Memory measurements supported only in Chrome.
For precise memory measurements Chrome must be launched with --enable-precise-memory-info flag.
More information: Monitoring JavaScript Memory

Test case name	Result
ES6 Class
Function Prototype
Object Literal

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Mobile Safari/537.36

Browser/OS: Chrome Mobile 123 on Android

View result in a separate tab

Test name	Executions per second
ES6 Class	282152.5 Ops/sec
Function Prototype	228246.7 Ops/sec
Object Literal	20172288.0 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):

Let's dive into the explanation of the provided benchmark.

The test case is designed to measure the performance and memory usage of three different approaches for constructing class objects in JavaScript:

ES6 Class: This approach uses the class keyword to define a new class, which creates an instance of a constructor function.
Function Prototype: This approach defines a Point function that returns an object with methods add and sub. The prototype chain is used to add these methods to the Point function.
Object Literal: This approach uses an object literal to define a new class, which creates an instance of a constructor function.

Comparison Options:

ES6 Class vs Function Prototype: These two approaches are compared to understand the performance and memory usage differences between them.
- Pros:
  - ES6 Class provides better encapsulation and abstraction compared to Function Prototype.
  - Function Prototype can be more flexible and extensible, as it allows for dynamic method addition.
- Cons:
  - Function Prototype may lead to slower performance due to the overhead of creating a new function object.
ES6 Class vs Object Literal: These two approaches are compared to understand the performance and memory usage differences between them.
- Pros:
  - ES6 Class provides better encapsulation and abstraction compared to Object Literal.
  - Object Literal can be more concise and readable, as it eliminates the need for a constructor function.
- Cons:
  - Object Literal may lead to slower performance due to the overhead of creating a new object.

Library/Functionality:

The Point class/function is used throughout all three test cases. It has methods add and sub, which return a new instance of Point.
No external library is required for this benchmark, as it only relies on JavaScript's built-in functionality.

Special JS Features/Syntax:

None mentioned in the provided code snippet. However, ES6 classes use some advanced syntax features like this binding and static methods (e.g., static get()), which might affect performance.

Other Alternatives:

Another approach could be using a module-based constructor, where the class is defined as a module function and instantiated using the new keyword.
A more modern alternative could be using ** decorators**, which allow for meta-programming and can improve code reusability and extensibility.

Keep in mind that the choice of approach depends on the specific use case, performance requirements, and coding style preferences.

LLMs can make mistakes. Check important info.

Let's dive into the explanation of the provided benchmark.

The test case is designed to measure the performance and memory usage of three different approaches for constructing class objects in JavaScript:

1. **ES6 Class**: This approach uses the `class` keyword to define a new class, which creates an instance of a constructor function.
2. **Function Prototype**: This approach defines a `Point` function that returns an object with methods `add` and `sub`. The prototype chain is used to add these methods to the `Point` function.
3. **Object Literal**: This approach uses an object literal to define a new class, which creates an instance of a constructor function.

**Comparison Options:**

* **ES6 Class vs Function Prototype**: These two approaches are compared to understand the performance and memory usage differences between them.
	+ Pros:
		- ES6 Class provides better encapsulation and abstraction compared to Function Prototype.
		- Function Prototype can be more flexible and extensible, as it allows for dynamic method addition.
	+ Cons:
		- Function Prototype may lead to slower performance due to the overhead of creating a new function object.
* **ES6 Class vs Object Literal**: These two approaches are compared to understand the performance and memory usage differences between them.
	+ Pros:
		- ES6 Class provides better encapsulation and abstraction compared to Object Literal.
		- Object Literal can be more concise and readable, as it eliminates the need for a constructor function.
	+ Cons:
		- Object Literal may lead to slower performance due to the overhead of creating a new object.

**Library/Functionality:**

* The `Point` class/function is used throughout all three test cases. It has methods `add` and `sub`, which return a new instance of `Point`.
* No external library is required for this benchmark, as it only relies on JavaScript's built-in functionality.

**Special JS Features/Syntax:**

* None mentioned in the provided code snippet. However, ES6 classes use some advanced syntax features like `this` binding and static methods (e.g., `static get()`), which might affect performance.

**Other Alternatives:**

* Another approach could be using a **module-based constructor**, where the class is defined as a module function and instantiated using the `new` keyword.
* A more modern alternative could be using ** decorators**, which allow for meta-programming and can improve code reusability and extensibility.

Keep in mind that the choice of approach depends on the specific use case, performance requirements, and coding style preferences.

Related benchmarks:

ES6 Class vs Prototype vs Object Literal (fixed) (version: 0)

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

Comparing performance of: ES6 Class vs Function Prototype vs Object Literal

Created: one year ago by: Guest

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