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Difference lodash vs Filter-Not-Includes
(version: 0)
Comparing performance of:
Lodash - Full vs Filter Full vs Lodash - Partial vs Filter - Partial
Created:
4 years ago
by:
Guest
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HTML Preparation code:
<script src="https://cdn.jsdelivr.net/lodash/4.16.0/lodash.min.js"></script>
Script Preparation code:
var arrFull = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20] var arrOne = [1,2,3,5,6,11,13,17,19]
Tests:
Lodash - Full
_.difference(arrFull, arrFull)
Filter Full
arrFull.filter(a=>!arrFull.includes(a))
Lodash - Partial
_.difference(arrFull, arrOne)
Filter - Partial
arrFull.filter(a=>!arrOne.includes(a))
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (4)
Previous results
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Test case name
Result
Lodash - Full
Filter Full
Lodash - Partial
Filter - Partial
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the world of JavaScript microbenchmarks on MeasureThat.net. **Benchmark Definition** The benchmark tests two approaches to find the difference between two arrays: using Lodash's `_.difference()` method and using the `filter` method with an arrow function that checks if an element is not included in the second array. **Lodash `_difference()` Method** * **Description**: The `_difference()` method returns a new array containing all elements of the first array (`arrFull`) that are not present in the second array (`arrOne`). * **Purpose**: To test the performance of Lodash's `_.difference()` method for finding differences between two arrays. * **Pros**: + Convenient and concise way to find differences between two arrays. + Handles arrays with duplicate elements correctly. * **Cons**: + May not be suitable for large datasets due to its functional programming nature, which can lead to higher memory usage and slower performance. **`filter` Method with Arrow Function** * **Description**: The `filter()` method creates a new array containing all elements that pass the test implemented by the provided function (in this case, an arrow function that checks if an element is not included in `arrOne`). * **Purpose**: To test the performance of using the `filter()` method with an arrow function to find differences between two arrays. * **Pros**: + Suitable for large datasets due to its iterative nature, which can lead to faster performance and lower memory usage. + Allows for more control over the filtering process. * **Cons**: + May be less concise than the `_difference()` method, requiring more code to achieve the same result. **Other Considerations** * **Library**: Lodash is a popular JavaScript utility library that provides a wide range of functions for tasks such as array manipulation, string manipulation, and functional programming. * **Special JS Feature/Syntax**: None mentioned in this benchmark. **Alternatives** * Other array manipulation methods, such as `forEach()` or `reduce()`, could be used to find differences between two arrays. However, these methods would likely have different performance characteristics compared to the `_difference()` method and the `filter` method with an arrow function. * Custom implementations using loops or other iterative approaches could also be used, but may not provide the same level of convenience and readability as Lodash's `_difference()` method. Overall, this benchmark allows users to compare the performance of two common approaches to finding differences between arrays in JavaScript.
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