Benchmark: Lodash.js vs Nativeыы

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>

Script Preparation code:

var max1 = 100000; // 100,000 (100 Thousand)
var max2 = 100000; // 10,000,000 (10 Million)
var max3 = 100000000; // 100,000,000 (100 Million)

var arr1 = [];
//for (var i = 0; i <= max1; i++) { arr1.push(i); }

var arr2 = [];
for (var i = 0; i <= max2; i++) { arr2.push(i); }

var arr3 = [];
//for (var i = 0; i <= max3; i++) { arr3.push(i); }

Tests:

Native
arr2.forEach(function (element, index) { element = element*2; });
Lodash.js filter
_.each(arr2, function (element, index) { element = element*2; });

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Native
Lodash.js filter

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 benchmark and explain what's being tested.

**Benchmark Definition**

The benchmark is designed to compare the performance of two approaches:

1. **Lodash.js**: A popular JavaScript library that provides utility functions for various tasks, including array manipulation.
2. **Native**: The native implementation of the `forEach` function in JavaScript, which is built into the browser's engine.

**Script Preparation Code**

The script preparation code defines three arrays: `arr1`, `arr2`, and `arr3`. Each array has a varying number of elements:

* `arr1`: 100,000 elements (from 0 to 99,999)
* `arr2`: 10,000,000 elements (from 0 to 9,999,999)
* `arr3`: 100,000,000 elements (from 0 to 99,999,999)

The script also defines a loop for each array to push the element values from 0 to the maximum value in each array.

**Html Preparation Code**

The HTML preparation code includes a reference to the Lodash.js library, specifically version 4.17.4, which is loaded via a CDN.

**Individual Test Cases**

There are two test cases:

1. **Native**: This test case uses the native implementation of the `forEach` function to iterate over `arr2` and multiply each element by 2.
2. **Lodash.js filter**: This test case uses Lodash.js's `each` function (specifically, the `_filter` method) to iterate over `arr2` and multiply each element by 2.

**Library: Lodash.js**

Lodash.js is a popular JavaScript utility library that provides a wide range of functions for various tasks, such as array manipulation, string manipulation, and more. In this benchmark, Lodash.js's `_filter` method is used to iterate over `arr2` and perform the desired operation.

**Pros and Cons:**

* **Native**: The native implementation has several advantages:
	+ It's built into the browser's engine, which means it's tightly optimized for performance.
	+ It doesn't require any additional dependencies or libraries.
* However, it also has some drawbacks:
	+ It may not be as readable or maintainable as using a library like Lodash.js.
	+ Its performance might vary depending on the specific implementation and browser engine used.

* **Lodash.js filter**: The use of Lodash.js provides several benefits:
	+ It's highly optimized for performance, thanks to its extensive testing and benchmarking.
	+ It offers a more readable and maintainable way to perform the desired operation.
	+ However, it also has some drawbacks:
		- It requires an additional dependency (Lodash.js) to be loaded.
		- Its performance might not be as good as using the native implementation.

**Other Considerations:**

* **Browser Engine:** The benchmark's results are dependent on the browser engine used. Different engines may optimize and execute code differently, leading to variations in performance.
* **JavaScript Version:** The benchmark is likely written for a specific JavaScript version (in this case, likely ECMAScript 5 or later). Different versions might have different implementations of certain functions.

**Alternatives:**

If you were to rewrite the benchmark using alternative approaches, you could consider:

* Using other libraries like `Underscore.js` or `Ramda` instead of Lodash.js.
* Implementing a custom loop or iteration function instead of relying on the native `forEach` function.
* Using different data structures, such as arrays with more efficient data types (e.g., `Map` for fast lookups).
* Utilizing browser-specific features like Web Workers or WebAssembly to offload computationally intensive tasks.

Keep in mind that each alternative approach would require significant changes to the benchmark and its logic.

Related benchmarks:

Lodash.js vs Nativeыы (version: 0)

Comparing performance of: Native vs Lodash.js filter

Created: 7 years ago by: Guest

Jump to the latest result

Native

Lodash.js filter

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):