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Lodash flatten vs nativate flat (depth 1)
(version: 0)
Comparing performance of:
Lodash flatten vs Native flat
Created:
4 years ago
by:
Guest
Go to the latest result
HTML Preparation code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
Tests:
Lodash flatten
const arr = [1,[2,3,4]]; _.flatten(arr);
Native flat
const arr = [1,[2,3,4]]; arr.flat();
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
Lodash flatten
Native flat
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
6 months ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36
Browser/OS:
Chrome 144 on Mac OS X 10.15.7
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Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=624429" width="100%" height="500px"></iframe>
Lodash flatten
20.3M/s
Native flat
8.7M/s
View exact numbers
Test name
Executions per second
✓
Lodash flatten
20,314,402 Ops/sec
Native flat
8,729,444 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided JSON data and explain what's being tested on MeasureThat.net. **Benchmark Definition** The benchmark is comparing two approaches to flatten an array in JavaScript: 1. **Lodash `flatten`**: This method is part of the popular Lodash library, which provides a comprehensive set of utility functions for functional programming. The `flatten` function takes an array as input and returns a new array with all nested arrays flattened. 2. **Native `flat`**: This is a built-in method introduced in ECMAScript 2019 (ES2019) that allows you to flatten an array in a more concise way. **Options Compared** The benchmark compares the performance of these two approaches: * Lodash `flatten`: A widely used and well-maintained library with a large user base. * Native `flat`: A built-in method that is part of the ECMAScript standard, which means it's available in all modern JavaScript engines. **Pros and Cons** **Lodash `flatten`** Pros: * Widely supported and used, ensuring good performance and stability. * Provides additional functionality beyond just flattening arrays (e.g., recursive flattening). * Easy to use and understand, especially for developers familiar with functional programming. Cons: * Adds an external dependency (the Lodash library), which may increase bundle size and page load times. * May not be as lightweight or efficient as the native `flat` method. **Native `flat`** Pros: * Built-in and part of the ECMAScript standard, ensuring consistency across all modern JavaScript engines. * Lightweight and efficient, with minimal overhead compared to Lodash's dependency. * Concise syntax and easy to use. Cons: * Not all older browsers or environments may support this method (although most modern ones do). * May not provide additional functionality beyond just flattening arrays. **Library: Lodash** Lodash is a popular JavaScript library that provides a comprehensive set of utility functions for functional programming, including the `flatten` method. It's widely used and well-maintained, making it a great choice for many developers. **Special JS Feature/Syntax** The benchmark doesn't explicitly mention any special JavaScript features or syntax. However, it does rely on the ECMAScript 2019 standard (ES2019) to utilize the `flat` method. **Other Alternatives** If you need alternative approaches to flatten arrays in JavaScript, consider: * Using a different library, such as Ramda or Underscore.js. * Implementing your own flattening function using recursion or iteration. * Utilizing other methods, like `Array.prototype.concat()` or `Array.prototype.reduce()`, although these may be less efficient than the native `flat` method. Keep in mind that performance and efficiency will vary depending on the specific use case and environment.
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