Benchmark: sort destruct vs sort

Script Preparation code:

var a = [{session:2},{session:1}]

Tests:

sort
a.sort((a,b) => b.session - a.session)
sort1
a.sort(({session:a}, {session:b}) => b-a);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
sort
sort1

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

Let's break down the benchmark and explain what's being tested.

**Benchmark Overview**

The benchmark is designed to compare two approaches for sorting an array of objects with a single property (`session`) in descending order.

**Script Preparation Code**

The script preparation code generates an array `a` containing two objects: `{session: 2}` and `{session: 1}`. This is the starting point for the sorting tests.

**Html Preparation Code**

There is no HTML preparation code, which means that the benchmark is focused solely on the JavaScript execution.

**Benchmark Test Cases**

The benchmark consists of two test cases:

1. `sort`: This test case uses a traditional arrow function to sort the array in descending order by the `session` property.
```javascript
a.sort((a, b) => b.session - a.session);
```
2. `sort1`: This test case uses an object destructuring assignment to sort the array in descending order by the `session` property.
```javascript
a.sort(({ session: a }, { session: b }) => b - a);
```
**Libraries and Features**

There are no external libraries used in this benchmark.

**Special JS Features or Syntax**

The use of object destructuring assignment (`({ session: a }, { session: b })`) is a modern JavaScript feature that allows for concise and expressive code. It's a relatively recent addition to the language, introduced in ECMAScript 2015 (ES6).

**Pros and Cons**

**Traditional Arrow Function Approach (`sort`)**

Pros:

* Widely supported by most browsers and environments
* Easy to read and maintain
* Can be used with older versions of JavaScript

Cons:

* May not be as concise or expressive as other approaches
* May require more memory allocation for the temporary variable `b - a`

**Object Destructuring Assignment Approach (`sort1`)**

Pros:

* Concise and expressive code
* Allows for a more elegant and readable sorting algorithm
* Can potentially reduce memory allocation overhead

Cons:

* May not be supported by older browsers or environments
* Requires knowledge of object destructuring assignment syntax

**Other Alternatives**

Some alternative approaches to sorting arrays in descending order might include:

1. Using the `Array.prototype.sort()` method with a custom comparison function that subtracts the values of two objects.
2. Using a library like Lodash, which provides a `sortBy` function for sorting arrays based on a specified key.
3. Using a more specialized library or framework that provides optimized sorting algorithms.

However, in this specific benchmark, the use of object destructuring assignment is likely intended to showcase its concise and expressive nature, while still maintaining compatibility with older environments.

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.51 Safari/537.36

Browser/OS: Chrome 99 on Windows

View result in a separate tab

Test name	Executions per second
sort	3989523.2 Ops/sec
sort1	4290815.5 Ops/sec

Related benchmarks:

sort destruct vs sort (version: 0)

Comparing performance of: sort vs sort1

Created: 2 years ago by: Guest

Jump to the latest result

sort

sort1

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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