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Intersect
(version: 0)
Comparing performance of:
underscore vs non-underscore
Created:
3 years ago
by:
Guest
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HTML Preparation code:
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.0/underscore.js"></script>
Script Preparation code:
var data = ["ocpp1.6", "ocpp2.0", "ocpp3.0"] var target = ["ocpp1.6"]
Tests:
underscore
const supportedProtocols = _.intersection(target, data) const returnedProtocol = !supportedProtocols.length ? 'ocpp1.6' : _.first(supportedProtocols)
non-underscore
const returnedProtocols = target.find((protocol) => data.includes(protocol)) || 'ocpp1.6'
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
underscore
non-underscore
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 provided benchmark and its test cases. **Benchmark Overview** The Intersect benchmark is designed to measure the performance of finding common elements between two arrays, specifically in the context of OCPP (Open Connectivity Protocol) versions. The benchmark compares two approaches: using the Underscore.js library and a non-library approach. **Test Cases** There are two test cases: 1. **underscore**: This test case uses the Underscore.js library to find the intersection of two arrays, `data` and `target`. Specifically, it calculates the intersection using the `_intersection` function from Underscore.js. 2. **non-underscore**: This test case implements a similar calculation without using any external libraries. It finds the first common element in `data` that exists in `target` using the `includes` method. **Library: Underscore.js** Underscore.js is a popular JavaScript utility library that provides various functions for tasks like array manipulation, object manipulation, and more. In this benchmark, the `_intersection` function from Underscore.js is used to find common elements between two arrays. The Underscore.js library provides several benefits: Pros: * Simplifies complex array operations * Reduces code duplication * Provides a consistent API across different browsers Cons: * Introduces an additional dependency (the library itself) * May incur overhead due to the library's functionality * May not be suitable for all use cases, especially those requiring fine-grained control over implementation details **Non-Library Approach** The non-underscore approach uses basic JavaScript methods like `includes` and `find` to achieve the same result without relying on an external library. This approach is more lightweight: Pros: * No additional dependencies * Less overhead compared to using a library * Provides fine-grained control over implementation details Cons: * Code duplication occurs when implementing similar logic elsewhere * May be less readable due to the need for manual array manipulation **Special JS Feature/Syntax** There are no specific JavaScript features or syntax mentioned in this benchmark. However, it's worth noting that some browsers may optimize certain operations (e.g., `includes`) differently than others. **Other Alternatives** If you're looking for alternative approaches, consider: * Using a dedicated array manipulation library like Lodash * Implementing custom array intersection logic using only native JavaScript methods (as shown in the non-underscore test case) * Utilizing browser-specific optimizations or APIs that can simplify array operations Keep in mind that the choice of approach depends on your specific requirements, performance constraints, and development goals.
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