Benchmark: Lodash Uniq vs Javascript Set low count

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.5/lodash.min.js"></script>

Script Preparation code:

var firstEqual = [];
var secondEqual = [];

for (var i=0; i<=1000; i++) {
  firstEqual.push(i);
  secondEqual.push(i);
}

var arrayToDedup = [...firstEqual, ...secondEqual];

Tests:

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

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash Uniq
Javascript Set

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.

**Understanding the Benchmark**

The provided benchmark measures the performance of two approaches to remove duplicates from an array: using the `uniq` function from Lodash and creating a new Set from the array.

**Options Compared**

1. **Lodash Uniq**: This approach uses the `uniq` function, which is a utility function in Lodash that returns a new array with duplicate elements removed.
2. **Javascript Set**: This approach creates a new Set from the array and then converts it back to an array using the spread operator (`[...new Set(arrayToDedup)]`). Sets are data structures in JavaScript that only store unique values.

**Pros and Cons of Each Approach**

1. **Lodash Uniq**:
	* Pros:
		+ More concise code
		+ Uses a well-known and widely-used library (Lodash)
	* Cons:
		+ Requires an additional library dependency
		+ May not be as efficient as creating a Set due to the overhead of function calls and iterations
2. **Javascript Set**:
	* Pros:
		+ Lightweight and doesn't require any libraries
		+ Can be more efficient than Lodash Uniq for large arrays
	* Cons:
		+ More verbose code
		+ Requires a basic understanding of Sets in JavaScript

**Library: Lodash**

Lodash is a popular utility library for JavaScript that provides a collection of functions for various tasks, such as array manipulation, string manipulation, and more. The `uniq` function is one of the many utilities provided by Lodash.

**Special JS Feature/Syntax: None**

There are no special JavaScript features or syntax used in this benchmark.

**Other Alternatives**

If you want to avoid using Lodash or Sets, you can also use other approaches such as:

1. Using `filter` and `includes`: `arrayToDedup.filter((element) => !arrayToDedup.includes(element))`
2. Using `reduce`: `arrayToDedup.reduce((acc, element) => acc.includes(element) ? acc : [element], [])`

These alternatives may be less efficient than using Lodash or Sets, but they can still produce good results.

**Benchmark Preparation Code Explanation**

The script preparation code creates two arrays (`firstEqual` and `secondEqual`) with 1000 elements each. Then, it uses the spread operator to combine these arrays into a single array (`arrayToDedup`). This array is then used for both benchmarks.

Related benchmarks:

Lodash Uniq vs Javascript Set low count (version: 0)

Comparing performance of: Lodash Uniq vs Javascript Set

Created: 6 years ago by: Guest

Jump to the latest result

Lodash Uniq

Javascript Set

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):