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isEqual + sort vs. difference
(version: 0)
Comparing performance of:
isEqual vs difference
Created:
4 years ago
by:
Guest
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HTML Preparation code:
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.min.js"></script>
Script Preparation code:
window.foo1 = [1,2,3,4,5,6,7,8,9,10,11,12]; window.bar1 = [33,10,11,12,1,2,3,4,5,6,7,8,9,44];
Tests:
isEqual
_.isEqual(window.foo1.sort(), window.bar1.sort())
difference
_.difference(window.foo1, window.bar1).length === 0
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
isEqual
difference
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 break down the provided JSON and explain what is tested, compared, and other considerations. **Benchmark Overview** The benchmark compares two approaches: `_.isEqual()` and `_.difference()`. The purpose of these functions is to determine if two arrays are equal (`.isEqual()`) or have only unique elements (`.difference()`). **Library: Lodash.js** The benchmark uses the Lodash library, which provides utility functions for various tasks, including array manipulation (`_.isEqual()` and `.difference()`). Lodash simplifies common programming tasks by providing a collection of reusable functions. **Options Compared** In this benchmark: * **`_.isEqual(window.foo1.sort(), window.bar1.sort())`**: This test checks if two sorted arrays are equal. The `sort()` method sorts the elements in ascending order. * **`_.difference(window.foo1, window.bar1).length === 0`**: This test checks if the difference between two arrays has a length of 0, indicating that they have only unique elements. **Pros and Cons** * **`_.isEqual(window.foo1.sort(), window.bar1.sort())`**: + Pros: Simple to understand, easy to implement. + Cons: Sorting can be slow for large datasets, and it may not work correctly for non-numeric arrays or with specific sorting algorithms (e.g., stable sort). * **`_.difference(window.foo1, window.bar1).length === 0`**: + Pros: Fast, efficient way to check for unique elements. + Cons: May have issues with edge cases (e.g., null or undefined values), and it can be less intuitive than using `_.isEqual()`. **Special JS Feature/Syntax** There is no special JavaScript feature or syntax mentioned in the benchmark. The code is straightforward and uses built-in functions provided by Lodash. **Alternatives** If you're interested in comparing these approaches with different libraries or custom implementations, here are some alternatives: 1. **Implementing your own sorting algorithm**: Instead of using `sort()`, you could implement a sorting algorithm like quicksort, mergesort, or heapsort. 2. **Using a different array manipulation library**: You could use libraries like jQuery (if you're working with DOM elements) or a custom implementation of array operations. 3. **Comparing with other comparison functions**: You might want to compare `_.isEqual()` and `.difference()` with other comparison functions, such as `===` for equality or `Array.prototype.filter()` for unique elements. Keep in mind that these alternatives would likely require more effort and expertise in JavaScript implementation details.
Related benchmarks:
Lodash isEqual vs Lodash difference
Lodash isEqual with sort vs Lodash difference
isEqual with sort vs xor
_.isEqual vs for loop on Number Array
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