Benchmark: lodash uniq vs set (String)

HTML Preparation code:


<script src='https://cdn.jsdelivr.net/npm/lodash@4.17.10/lodash.min.js'></script>

Tests:

Set
return new Set(["1", "2", "3", "4", "5", "6", "7", "7", "7", "7", "1", "3", "0", "7", "4", "7"]);
Lodash
return _.uniq(["1", "2", "3", "4", "5", "6", "7", "7", "7", "7", "1", "3", "0", "7", "4", "7"]);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Set
Lodash

Fastest: N/A

Slowest: N/A

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/121.0.0.0 Safari/537.36

Browser/OS: Chrome 121 on Windows

View result in a separate tab

Test name	Executions per second
Set	3627081.5 Ops/sec
Lodash	5355628.5 Ops/sec

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

LLMs can make mistakes. Check important info.

I'd be happy to help you understand the benchmark.

**What is being tested?**

The provided benchmark compares two approaches to remove duplicate elements from an array of strings: using a native JavaScript `Set` object and using the popular utility library Lodash's `uniq` function. The test measures the execution time for both methods on a specific input string containing duplicates.

**Options compared:**

* **Native JavaScript Set**: This approach uses the built-in `Set` object in JavaScript, which automatically removes duplicate elements.
* **Lodash uniq**: This approach uses the Lodash library's `uniq` function to remove duplicate elements from an array.

**Pros and Cons:**

* **Native JavaScript Set:**
	+ Pros:
		- Fast execution time
		- Built-in functionality eliminates the need for additional libraries
		- Simple to implement
	+ Cons:
		- Not available in older browsers that don't support ES6+
		- May not be suitable for large datasets due to memory constraints
* **Lodash uniq:**
	+ Pros:
		- Widely supported across different browsers and versions
		- Provides more features beyond just removing duplicates (e.g., sorting, filtering)
		- Well-documented and maintained library
	+ Cons:
		- Adds extra overhead due to the use of a separate library
		- May be slower than native JavaScript Set for large datasets

**Library: Lodash**

Lodash is a popular utility library that provides a wide range of functions for tasks such as string manipulation, array manipulation, and more. The `uniq` function in Lodash removes duplicate elements from an array while preserving the original order.

**Special JS feature or syntax: None**

This benchmark does not utilize any special JavaScript features or syntax beyond the standard ES6+ syntax.

**Other alternatives:**

* **Array.prototype.filter()**: This approach can be used to remove duplicates by filtering out elements that already exist in a subset of the array. However, this method may not be as efficient as using a `Set` object for large datasets.
* **D3 Set library**: Another alternative is to use the D3 Set library, which provides a similar functionality to Lodash's `uniq` function but with additional features and optimizations.

Overall, the benchmark highlights the performance difference between using native JavaScript `Set` objects and external libraries like Lodash for tasks like removing duplicates from arrays.

Related benchmarks:

lodash uniq vs set (String) (version: 0)

Comparing performance of: Set vs Lodash

Created: 3 years ago by: Guest

Jump to the latest result

Set

Lodash

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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