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Lodash uniq vs Set to unique array
(version: 0)
Comparing performance of:
Set vs Lodash
Created:
4 years ago
by:
Guest
Go to the latest result
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, 7, 7, 7, 7, 7, 7])];
Lodash
return _.uniq([1, 2, 3, 4, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7]);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
Set
Lodash
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
3 months ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Safari/537.36
Browser/OS:
Chrome 147 on Windows
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=628266" width="100%" height="500px"></iframe>
Lodash
21.3M/s
Set
8.3M/s
View exact numbers
Test name
Executions per second
✓
Lodash
21,314,148 Ops/sec
Set
8,339,823 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
I'd be happy to help you understand the benchmark test. **Benchmark Test Overview** The test compares two approaches to remove duplicates from an array: using JavaScript's native `Set` object and using Lodash, a popular utility library for JavaScript. **What is being tested?** In this test, we are measuring the performance of two different functions: 1. A native JavaScript function that uses a `Set` object to remove duplicates from an array. 2. A function from Lodash (version 4.17.10) that uses its own implementation for removing duplicates from an array. **Options being compared** The test compares the performance of these two approaches on large arrays with duplicate elements. The options being compared are: * Native JavaScript `Set` object approach * Lodash's `uniq` function **Pros and Cons of each approach:** 1. **Native JavaScript `Set` object approach:** * Pros: + Lightweight, as it only requires the `Set` object and basic arithmetic operations. + Fast, since `Set` objects are implemented in native code and can take advantage of CPU optimizations. * Cons: + Requires understanding of how `Set` objects work and how to use them correctly. 2. **Lodash's `uniq` function:** * Pros: + Provides a convenient, high-level interface for removing duplicates from an array. + Easy to use, as it doesn't require any special knowledge about sets or arrays. * Cons: + Heavier, since Lodash is a larger library that includes many other utility functions. + May be slower than the native JavaScript approach due to the overhead of function calls and lookups. **Special considerations** In this test, we don't see any special JavaScript features or syntax being used. The `Set` object is a standard feature in modern JavaScript, and Lodash's `uniq` function is designed to work with plain arrays. **Other alternatives** If you wanted to use other approaches for removing duplicates from an array, some examples might include: * Using a regular expression with the `match()` method * Using the `filter()` method with a callback function that checks for duplicates * Using a custom implementation using a hash table or other data structure However, these alternatives may not be as efficient or convenient as the native JavaScript `Set` object approach or Lodash's `uniq` function. I hope this explanation helps! Let me know if you have any further questions.
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