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lodash flatten vs native flat with nested objects
(version: 0)
Comparing performance of:
Lodash with objects vs Native flat with objects
Created:
3 years ago
by:
Guest
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HTML Preparation code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
Tests:
Lodash with objects
const arr = [[{ name: 'bort' }, { name: 'dort' }, { name: 'bort' }, { name: 'dort' }], [{ name: 'bort' }, { name: 'dort' }, { name: 'bort' }, { name: 'dort' }]]; _.flatten(arr);
Native flat with objects
const arr = [[{ name: 'bort' }, { name: 'dort' }, { name: 'bort' }, { name: 'dort' }], [{ name: 'bort' }, { name: 'dort' }, { name: 'bort' }, { name: 'dort' }]]; arr.flat();
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
Lodash with objects
Native flat with objects
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the explanation. **Benchmark Definition JSON** The provided JSON represents a JavaScript benchmark test case for measuring the performance of two approaches: using Lodash's `flatten()` function and native `flat()` method with nested objects. **Options Compared** Two options are compared in this benchmark: 1. **Lodash's `flatten()` function**: This is a utility function from the popular JavaScript library Lodash that flattens an array (or any other iterable) into a one-dimensional array. 2. **Native `flat()` method**: This is a native JavaScript method introduced in ECMAScript 2019 (ES2020) that can be used to flatten arrays. **Pros and Cons of Each Approach** Here are the pros and cons of each approach: * **Lodash's `flatten()` function**: + Pros: widely supported, well-documented, and extensively tested. It also provides additional functionality like handling nested arrays. + Cons: adds an extra dependency on Lodash, which may not be desirable for smaller projects or those with specific dependencies restrictions. * **Native `flat()` method**: + Pros: no extra dependency required, efficient, and part of the standard JavaScript library. + Cons: requires ES2020 support (and possibly additional polyfills if needed), and its behavior might differ from expected due to how it handles nested arrays. **Library Used** In this benchmark, Lodash is used as a third-party library. The `flatten()` function is a key part of Lodash's utility belt, providing a simple way to flatten arrays into one-dimensional arrays. **Special JavaScript Feature or Syntax** No special JavaScript features or syntax are mentioned in the provided benchmark definition or test cases. However, it's worth noting that ES2020 introduced several new features and methods, including `flat()` and other array-related improvements. **Other Alternatives** If you're interested in exploring alternative approaches to flatten arrays, some other options include: * Using a library like Lo-Dash (a smaller, more lightweight alternative to Lodash) * Utilizing other third-party libraries like Ramda or Underscore.js * Implementing your own array flattening function from scratch * Leveraging modern JavaScript features like `flatMap()` or `reduce()`
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