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lodash uniq vs set with array.from
(version: 0)
Comparing performance of:
Set vs Array
Created:
4 years ago
by:
Guest
Jump to the latest result
HTML Preparation code:
<script src='https://cdn.jsdelivr.net/npm/lodash@4.17.10/lodash.min.js'></script>
Tests:
Set
var l = new Set([1, 2, 3, 4, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7]); return Array.from(l);
Array
var l = [1, 2, 3, 4, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7]; return _.uniq(l);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
Set
Array
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the benchmark and explain what's being tested, compared, and their pros and cons. **Benchmark Overview** The benchmark compares two approaches to remove duplicates from an array: using a JavaScript `Set` object (`Array Set`) and using Lodash's `uniq` function (`Array`). The goal is to determine which approach is faster in Firefox 93 on a Mac OS X 10.15 desktop. **Options Compared** 1. **Lodash `uniq` (Array)**: * Pros: + Easy to implement and understand, especially for developers familiar with Lodash. + Well-documented and widely used library. * Cons: + Additional dependency required (Lodash). + May have overhead due to the library's complexity and functionality. 2. **JavaScript `Set` object (Array Set)**: * Pros: + Built-in and native JavaScript feature, eliminating the need for an external library. + Lightweight and efficient, as it only contains unique values. * Cons: + Requires understanding of the `Set` data structure and its usage. + May not be as straightforward to implement, especially for developers without prior knowledge. **Library: Lodash** Lodash is a popular JavaScript utility library that provides various functions for tasks like array manipulation, object transformation, and more. In this benchmark, Lodash's `uniq` function is used to remove duplicates from an array. The `uniq` function iterates through the array, keeping track of seen elements and returning a new array with only unique values. **Special JS Feature/Syntax** There doesn't appear to be any special JavaScript features or syntax being tested in this benchmark. Both approaches use standard JavaScript data structures (arrays and sets) and do not rely on any advanced or experimental features. **Benchmark Preparation Code** The script preparation code includes a single line of JavaScript that imports Lodash's `lodash.min.js` file from a CDN. This ensures that the Lodash library is available for the benchmark tests. **Alternatives** If you're interested in exploring alternative approaches to removing duplicates from an array, some options include: 1. Using a more advanced data structure like a `Map` instead of a `Set`. 2. Implementing a custom implementation using iterative algorithms or sorting. 3. Using other libraries or frameworks that provide array manipulation functionality (e.g., Angular's `distinct` function). 4. Utilizing web workers to parallelize the duplicate removal process. Keep in mind that each approach has its trade-offs, and the best choice depends on your specific use case, performance requirements, and personal preference.
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