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reduce vs _reduce
(version: 0)
Comparing performance of:
reduce vs _reduce
Created:
4 years ago
by:
Guest
Jump to the latest result
HTML Preparation code:
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.11/lodash.core.js"></script>
Script Preparation code:
var numbers = [10, 40, 230, 15, 18, 51, 1221]
Tests:
reduce
numbers.reduce((acc, nuovo) => +acc + +nuovo)
_reduce
_.reduce(numbers, (acc, nuovo) => +acc + +nuovo)
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
reduce
_reduce
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 definition and test cases to understand what's being tested. **Benchmark Definition** The benchmark measures the performance difference between JavaScript's built-in `reduce()` method and a similar implementation using underscore.js's `_reduce()` function. **Script Preparation Code** ```javascript var numbers = [10, 40, 230, 15, 18, 51, 1221]; ``` This code defines an array of numbers that will be used in the benchmarking process. The purpose of this array is to provide a concrete and well-defined dataset for the test. **Html Preparation Code** ```html <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.11/lodash.core.js"></script> ``` This code includes the underscore.js library, which provides the `_reduce()` function used in one of the benchmarking test cases. **Test Cases** There are two individual test cases: 1. **"reduce"`** ```javascript Benchmark Definition: numbers.reduce((acc, nuovo) => +acc + +nuovo) ``` This code uses JavaScript's built-in `reduce()` method to iterate over the `numbers` array and perform a reduction operation. 2. **"_reduce"`** ```javascript Benchmark Definition: _.reduce(numbers, (acc, nuovo) => +acc + +nuovo) ``` This code uses underscore.js's `_reduce()` function to achieve the same result as the built-in JavaScript `reduce()` method. The `_reduce()` function is a utility function provided by underscore.js that wraps around the standard JavaScript `reduce()` method. **Pros and Cons of Different Approaches** * **JavaScript's built-in `reduce()` method**: This approach is native to JavaScript and doesn't require any additional libraries or dependencies. It provides fast execution times and is well-optimized for performance. + Pros: Fast, optimized, and widely supported + Cons: Requires a specific library (underscore.js) if you want to use the `_reduce()` function * **Underscore.js's `_reduce()` function**: This approach uses a utility function from a separate library. While it provides a similar API to JavaScript's built-in `reduce()` method, it may introduce additional overhead due to the need to load an external library. + Pros: Provides a familiar API for developers who are already familiar with underscore.js + Cons: Requires an additional library download and potentially slower execution times **Library Description** Underscore.js is a popular JavaScript utility library that provides a collection of functional programming helpers, including the `_reduce()` function. Its purpose is to provide a simple and consistent way to perform common tasks in JavaScript, such as iterating over arrays or objects. **Special JS Feature/Syntax** There are no special JavaScript features or syntax being tested in this benchmark. The code is purely functional programming with array operations. **Alternatives** If you want to test different approaches or use alternative libraries, some alternatives could be: * Using a different utility library like Lodash.js (which provides a more comprehensive set of functions than underscore.js) * Implementing the reduction operation manually without using any built-in functions * Testing different optimization techniques or compiler flags in your JavaScript engine Keep in mind that these alternatives may change the nature and scope of the benchmark, and may not provide a fair comparison to the original test case.
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