Benchmark: KaiOS this - MeasureThat.net

Script Preparation code:

class A {
  constructor(x) {
    this.x = x;
  }
  getX() {
    return this.x
  }
}

class B extends A {
  getX() {
    return this.x
  }
}

var a = new A(1)
var b = new B(1)

var obj = { x: 1 }

function getX(o) { return o.x }

Tests:

class 1
a.getX()
class 2
b.getX()
func
getX(obj)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
class 1
class 2
func

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Mobile; Nokia 8000 4G; rv:48.0) Gecko/48.0 Firefox/48.0 KAIOS/2.5.4.1

Browser/OS: Firefox Mobile 48 on Firefox OS

View result in a separate tab

class 1

14.4M/s

class 2

14.3M/s

func

9.7M/s

View exact numbers

Test name	Executions per second
✓ class 1	14,412,579 Ops/sec
class 2	14,267,859 Ops/sec
func	9,732,119 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

LLMs can make mistakes. Check important info.

Let's dive into the explanation.

**Benchmark Definition JSON**

The provided JSON represents a JavaScript microbenchmarking script, which is a small program designed to measure the performance of specific code snippets in various JavaScript environments. The script defines two classes, `A` and `B`, where `B` extends `A`. Both classes have a `getX()` method that returns the value of the `x` property.

The script also creates instances of these classes, `a` and `b`, and assigns them values. Additionally, it defines a function `getX(o)` that takes an object `o` as input and returns its `x` property.

**Options compared**

In this benchmark, two options are being compared:

1. **Class-based implementation**: The `getX()` method is called on instances of classes `A` and `B`. This approach involves creating objects and calling methods on them.
2. **Function-based implementation**: The `getX()` function is called with an object as input.

**Pros and cons of each approach**

**Class-based implementation**

Pros:

* Can take advantage of language-specific features like inheritance and polymorphism
* May be more efficient due to compiler optimizations

Cons:

* Requires creating objects, which can lead to memory allocation overhead
* May not be compatible with all JavaScript environments or libraries

**Function-based implementation**

Pros:

* Is more concise and easier to read
* Does not require creating objects, reducing memory allocation overhead

Cons:

* May not take advantage of language-specific features like inheritance and polymorphism
* May be less efficient due to slower function call overhead

**Library usage**

The benchmark uses the `class` keyword, which is a feature introduced in ECMAScript 2015 (ES6). This feature allows for object-oriented programming using classes.

**Special JS feature or syntax**

There are no special JavaScript features or syntaxes used in this benchmark. It only relies on standard language features like functions, classes, and objects.

**Other alternatives**

In addition to the class-based and function-based implementations, there may be other approaches to measuring the performance of the `getX()` method, such as:

* Using a library like `lodash` or `underscore`, which provide utility functions for working with objects
* Implementing the `getX()` method using a closure or an arrow function
* Measuring the performance of different data structures (e.g., arrays vs. objects) for passing to the `getX()` function

However, these alternatives are not explicitly mentioned in the provided benchmark definition JSON.

KaiOS this (version: 0)

Comparing performance of: `class 1 vs class 2 vs func`

Created: 5 years ago by: Guest

Go to the latest result

class 1

class 2

func

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

KaiOS this (version: 0)

Comparing performance of: class 1 vs class 2 vs func

Created: 5 years ago by: Guest

Go to the latest result

class 1

class 2

func

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

Related benchmarks

Comparing performance of: `class 1 vs class 2 vs func`