Benchmark: lodash sortBy vs native sortBy 3

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

function getRandomInt(max) {
  return Math.floor(Math.random() * Math.floor(max));
}

var arr = [];
for(var i = 0; i < 500; i++){
  arr.push({value:getRandomInt(100)});
}

Tests:

_.sortBy
_.sortBy(arr,"value");
sortByKey
const sortByKey = (array, key) => arr.sort((a,b) => (a[key] > b[key]) ? 1 : (a[key] < b[key]) ? -1 : 0);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
_.sortBy
sortByKey

Fastest: N/A

Slowest: N/A

Latest run results:

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

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark JSON and explain what's being tested, compared, and some pros and cons of each approach.

**Benchmark Description**

The benchmark measures the performance difference between two approaches to sorting an array:

1. **`_.sortBy(arr,"value")`:** This is a method call on the Lodash library (specifically, version 4.17.5), which implements a stable sort function using a comparison function.
2. **`const sortByKey = (array, key) => arr.sort((a,b) => (a[key] > b[key]) ? 1 : (a[key] < b[key]) ? -1 : 0);`:** This is an anonymous function that sorts the array using the `sort()` method and a comparison function.

**Comparison of Sorting Algorithms**

The benchmark compares two sorting algorithms:

* **Lodash's `_sortBy`**: This uses a stable sort algorithm, which ensures that equal elements maintain their original order.
* **Native JavaScript's `sort()` with a custom comparison function**: This uses the built-in `sort()` method, which sorts arrays in ascending order by default. By providing a custom comparison function, you can sort the array based on a specific key.

**Pros and Cons of Each Approach**

**Lodash's `_sortBy`**

Pros:

* Stable sorting algorithm ensures equal elements maintain their original order.
* Implemented in JavaScript, so no platform-specific dependencies are required.
* Lodash is widely used and well-maintained.

Cons:

* May be slower than native JavaScript's `sort()` due to the overhead of a library function.
* Additional dependency on Lodash needs to be included.

**Native JavaScript's `sort()` with a custom comparison function**

Pros:

* Fastest implementation, as it leverages the optimized built-in `sort()` method.
* No additional dependencies or libraries needed.

Cons:

* Unstable sorting algorithm (equal elements may swap order).
* Custom comparison function can make code more difficult to read and maintain.

**Library Used: Lodash**

Lodash is a popular JavaScript utility library that provides a wide range of functions for tasks like string manipulation, array processing, and more. The `_sortBy` method is part of the `lodash.sortBy` module, which implements a stable sorting algorithm.

**Special JS Feature or Syntax: None mentioned**

There are no special JavaScript features or syntaxes being used in this benchmark that require explanation.

**Alternatives to Lodash's `_sortBy`**

If you don't want to use an external library like Lodash, you can implement your own sorting algorithms using native JavaScript functions. Some popular alternatives include:

* **Quicksort**: A fast and efficient sorting algorithm with an average time complexity of O(n log n).
* **Mergesort**: Another stable sorting algorithm with a time complexity of O(n log n).

However, these alternatives may not be as widely used or well-maintained as Lodash's `_sortBy`.

**Alternatives to Native JavaScript's `sort()`**

If you don't want to use the built-in `sort()` method, you can implement your own sorting algorithm using native JavaScript functions. Some popular alternatives include:

* **Bubble sort**: A simple and stable sorting algorithm with a time complexity of O(n^2).
* **Insertion sort**: Another simple and efficient sorting algorithm with a time complexity of O(n^2).

However, these alternatives may not be as fast or efficient as the built-in `sort()` method.

Related benchmarks:

lodash sortBy vs native sortBy 3 (version: 0)

Comparing performance of: _.sortBy vs sortByKey

Created: 5 years ago by: Guest

Jump to the latest result

_.sortBy

sortByKey

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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