Benchmark: Lodash Uniq vs Javascript Set vs Ramda

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.5/lodash.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/ramda/0.28.0/ramda.min.js"></script>

Script Preparation code:

var firstEqual = [];
var secondEqual = [];

for (var i=0; i<=1000000; i++) {
  firstEqual.push(i);
  secondEqual.push(i);
}

var arrayToDedup = [...firstEqual, ...secondEqual];

Tests:

Lodash Uniq
_.uniq(arrayToDedup);
Javascript Set
[...new Set(arrayToDedup)]
Ramda Uniq
R.uniq(arrayToDedup);

Historical Performance Data aggregated from 12 community runs

Desktop Results:

Chrome 12 runs

Javascript Set

9/s

Lodash Uniq

9/s

Ramda Uniq

6/s

Fastest: Javascript Set (1.5x faster)

View exact numbers

✓ Javascript Set: 9 ops/sec
• Lodash Uniq: 9 ops/sec
• Ramda Uniq: 6 ops/sec

Results show median performance across all community submissions. Run this benchmark yourself to verify on your device.

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash Uniq
Javascript Set
Ramda Uniq

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Browser/OS: Chrome 122 on Linux

View result in a separate tab

Lodash Uniq

5/s

Javascript Set

5/s

Ramda Uniq

4/s

View exact numbers

Test name	Executions per second
✓ Lodash Uniq	5 Ops/sec
Javascript Set	5 Ops/sec
Ramda Uniq	4 Ops/sec

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 and its options.

**Benchmark Definition**

The benchmark is designed to compare the performance of three data deduplication methods:

1. Lodash `uniq` function
2. JavaScript built-in `Set` object
3. Ramda `R.uniq` function

All three methods are tested on a large array of 1,000,000 unique elements.

**Options Compared**

The options being compared are the performance characteristics of each data deduplication method:

* **Lodash Uniq**: The Lodash library provides a `uniq` function that removes duplicate elements from an array. This implementation has its own internal logic and may have additional overhead due to the library's functionality.
* **JavaScript Set**: The JavaScript `Set` object is a built-in data structure designed for efficient set operations, including deduplication. It uses a hash table internally to store unique values.
* **Ramda Uniq**: Ramda is a functional programming library that provides a `R.uniq` function similar to Lodash's `uniq`. This implementation may have different performance characteristics due to its design and internal logic.

**Pros and Cons of Each Approach**

Here are some general pros and cons for each approach:

* **Lodash Uniq**:
	+ Pros: Simple to use, well-documented, and widely adopted.
	+ Cons: May have additional overhead due to library functionality, potentially slower performance compared to native JavaScript Set or Ramda Uniq.
* **JavaScript Set**:
	+ Pros: Fast, efficient, and optimized for set operations. It's also a built-in data structure, reducing dependencies.
	+ Cons: Requires understanding of hash tables and may not be as straightforward to use for non-technical users.
* **Ramda Uniq**:
	+ Pros: Designed for functional programming, potentially more concise code, and optimized for performance.
	+ Cons: May have a learning curve due to its functional programming paradigm, and some users might find it less intuitive than other approaches.

**Library Descriptions**

In this benchmark, the following libraries are used:

* **Lodash**: A popular JavaScript utility library that provides a wide range of functions for tasks like data manipulation, string manipulation, and more.
* **Ramda**: A functional programming library for JavaScript that provides a set of higher-order functions and data structures to simplify code and improve performance.

**Other Considerations**

When choosing an approach for data deduplication, consider the following factors:

* Performance: If speed is crucial, native JavaScript Set or Ramda Uniq might be better choices.
* Code readability: Lodash Uniq or Ramda Uniq might be more concise and readable depending on your programming style.
* Dependencies: JavaScript Set requires no dependencies, while Lodash Uniq and Ramda Uniq introduce additional libraries.

**Alternatives**

If you're looking for alternative data deduplication methods or libraries, consider:

* **Native JavaScript array methods**: The `filter` method can be used to remove duplicates from an array.
* **Other functional programming libraries**: Libraries like Immutable.js or jQuery provide similar functionality to Ramda Uniq.
* **Specialized libraries**: Libraries like FastSet or FastUnique offer optimized implementations for set operations.

Lodash Uniq vs Javascript Set vs Ramda (version: 0)

Comparing performance of: `Lodash Uniq vs Javascript Set vs Ramda Uniq`

Created: 4 years ago by: Registered User

Go to the latest result

Lodash Uniq

Javascript Set

Ramda Uniq

Historical Performance Data aggregated from 12 community runs

Desktop Results:

Chrome 12 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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

Lodash Uniq vs Javascript Set vs Ramda (version: 0)

Comparing performance of: Lodash Uniq vs Javascript Set vs Ramda Uniq

Created: 4 years ago by: Registered User

Go to the latest result

Lodash Uniq

Javascript Set

Ramda Uniq

Historical Performance Data aggregated from 12 community runs

Desktop Results:

Chrome 12 runs

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: `Lodash Uniq vs Javascript Set vs Ramda Uniq`