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Unique lodash vs vanilla
(version: 0)
Comparing performance of:
vanilla vs lodash
Created:
4 years ago
by:
Guest
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HTML Preparation code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
Script Preparation code:
var arr = Array.from({length: 10000}, () => Math.floor(Math.random() * 10000));
Tests:
vanilla
[...new Set(arr)]
lodash
_.uniq(arr)
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
vanilla
lodash
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
I'd be happy to help explain the JavaScript microbenchmark on MeasureThat.net. **What is being tested?** The provided benchmark tests two approaches for removing duplicates from an array: using vanilla JavaScript (without any external libraries) and using Lodash, a popular JavaScript utility library. **Options compared** The two options being compared are: 1. **Vanilla JavaScript**: This approach uses the built-in `Set` data structure and the spread operator (`[...new Set(arr)]`) to remove duplicates from the array. 2. **Lodash**: This approach uses the `uniq` function from Lodash, which is a utility function that takes an array as input and returns a new array with all duplicates removed. **Pros and Cons of each approach** **Vanilla JavaScript:** Pros: * Lightweight and doesn't require any external libraries * Easy to understand and implement Cons: * May be slower than using Lodash due to the overhead of creating a `Set` object and converting it back to an array * May not work correctly for certain edge cases, such as arrays containing NaN or Infinity values **Lodash:** Pros: * Faster performance compared to vanilla JavaScript due to optimized implementation in Lodash * Handles more edge cases, such as arrays containing NaN or Infinity values, out of the box Cons: * Requires an external library to be included (in this case, Lodash v4.17.5) * May have a slightly larger overhead compared to vanilla JavaScript **Library used** In this benchmark, Lodash is used for its `uniq` function, which removes duplicates from an array. Lodash is a popular utility library that provides various functions for tasks such as string manipulation, number formatting, and data transformation. **Other considerations** * The benchmark uses a random array of 10,000 elements to test the performance of both approaches. * The browser used for running the benchmarks is Chrome 102 on a Windows Desktop platform. * The benchmark measures the executions per second (FPS) for each approach, which provides an indication of performance. **Other alternatives** If you're interested in exploring alternative approaches to removing duplicates from an array, here are some other options: * Using `Array.prototype.filter()` and creating a set: `[...new Set(arr)].filter(x => arr.includes(x))` * Using `Array.prototype.map()` and `Set`: `arr.reduce((set, x) => { if (!set.has(x)) set.add(x); return set; }, new Set())` * Using a library like Fastify or Bun.js with their built-in data transformation utilities These alternatives may offer different trade-offs in terms of performance, readability, and complexity.
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