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for loop vs. lodash range foreach - ks
(version: 0)
Comparing performance of:
for vs lodash range foreach vs array foreach vs array lodash foreach vs lodash range lodash foreach
Created:
6 years ago
by:
Registered User
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HTML Preparation code:
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/2.4.1/lodash.js"></script>
Tests:
for
Array(1000); var x = 0; for (var i = 0; i < 10000; i++) { x++; }
lodash range foreach
var x = 0; _.range(10000).forEach(function (i) { x++; });
array foreach
var x = 0; Array(10000).forEach(function (i) { x++; });
array lodash foreach
var x = 0; _.forEach(Array(10000), function (i) { x++; });
lodash range lodash foreach
var x = 0; _.forEach(_.range(10000), function (i) { x++; });
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (5)
Previous results
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Test case name
Result
for
lodash range foreach
array foreach
array lodash foreach
lodash range lodash foreach
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 benchmark and explain what's being tested, compared, and their pros/cons. **Benchmark Overview** The test cases compare the performance of four different approaches: 1. **For Loop**: A traditional JavaScript for loop that increments a variable `x` 10,000 times. 2. **Lodash Range ForEach**: Uses Lodash (a utility library) to iterate over an array of 10,000 elements and increment a variable `x`. 3. **Array ForEach**: Uses the built-in `forEach` method on an array of 10,000 elements to increment a variable `x`. 4. **Lodash Range Lodash ForEach**: Combines two Lodash functions: `_range` and `forEach`. **Library Overview** Lodash is a popular JavaScript utility library that provides various functions for tasks such as iteration, string manipulation, data transformation, and more. * `_range`: Returns an array of numbers from 0 to the specified number (exclusive). * `_.forEach`: Applies a callback function to each element in an array. **Comparison Overview** The test cases aim to measure which approach is faster in terms of the number of executions per second on a desktop Linux system with Chrome 74. **Approach Pros/Cons:** 1. **For Loop**: Simple, straightforward, and easy to understand. * Pros: Well-established, widely supported, and familiar to most developers. * Cons: Can be slow due to overhead from variable declarations and loop control statements. 2. **Lodash Range ForEach**: Uses Lodash's optimized iteration functions. * Pros: Leverages optimized C++ code for iteration, reducing overhead. * Cons: Requires an additional dependency (Lodash) and may have a slightly higher learning curve. 3. **Array ForEach**: Uses the built-in `forEach` method on arrays. * Pros: Fast, lightweight, and easy to use. * Cons: May not be as performant as optimized libraries like Lodash, especially for large datasets. 4. **Lodash Range Lodash ForEach**: Combines two Lodash functions. * Pros: Potentially faster due to caching and optimization, but may introduce additional overhead. **Special JS Feature/Syntax** None of the provided test cases use any special JavaScript features or syntax that are not widely supported. **Alternatives** If you're looking for alternative benchmarking libraries or tools, consider: 1. **Benchmark.js**: A lightweight, built-in module for measuring the performance of small code snippets. 2. **Mocha**: A popular testing framework that can be used to create benchmarks. 3. **Jest**: Another popular testing framework with a built-in benchmarking feature. Keep in mind that each alternative has its own strengths and weaknesses, and the choice ultimately depends on your specific use case and requirements.
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