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Lodash.js test
(version: 0)
Comparing performance of:
lodash wrap vs lodash no-wrap
Created:
2 years ago
by:
Guest
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HTML Preparation code:
<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.21/lodash.min.js"></script>
Script Preparation code:
var limit = 1e6; var arr = Array(limit) .fill(1) .map((_, idx) => ({ day: idx.toString() }));
Tests:
lodash wrap
_(arr).orderBy('day').value()
lodash no-wrap
_.orderBy(arr, 'day')
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
lodash wrap
lodash no-wrap
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 what's happening in this benchmark. **What is being tested?** The test cases measure the performance of two different approaches for sorting an array using the Lodash library, a popular utility library for JavaScript. In each case, we have: 1. A large array (`arr`) created with 1 million elements, all initialized to `{ day: idx.toString() }`, where `idx` is the index of the element in the array. 2. The sorting function applied to the array using either: * Lodash's `orderBy` method wrapped around an arrow function ( `_(_) => ...` ) as seen in "Lodash wrap" test case. * Lodash's `orderBy` method directly, without wrapping it with an arrow function, as seen in "Lodash no-wrap" test case. **Comparison options** We're comparing two approaches: 1. **Wrapped approach**: Using `_(arr).orderBy('day').value()` to sort the array. 2. **Unwrapped approach**: Using `_.orderBy(arr, 'day')` to sort the array. **Pros and cons of each approach:** * **Wrapped approach (Lodash wrap)**: + Pros: - Might be more readable or maintainable due to the explicit method chaining. + Cons: - May incur additional overhead due to the wrapper function and method call chain. - Could potentially affect performance if not optimized correctly. * **Unwrapped approach (Lodash no-wrap)**: + Pros: - Might be more efficient since it avoids the wrapper function and method call chain. + Cons: - Might require more complex code to achieve the same readability as the wrapped approach. **Library usage** The `orderBy` method is a part of the Lodash library, which provides a simple and convenient way to sort arrays based on specific properties. The `_.orderBy()` function takes two arguments: the array to be sorted, and the property key to use for sorting. In this benchmark, we're using version 4.17.21 of Lodash, as indicated by the `Html Preparation Code` referencing a CDN link to that specific version. **Special JS feature or syntax** There are no special JavaScript features or syntax being used in this benchmark. The code is standard ECMAScript and uses only built-in functions, object methods, and the Lodash library for sorting. **Alternative approaches** Other approaches to sorting arrays could include: 1. Using native `Array.prototype.sort()` method with a custom compare function. 2. Implementing a custom sorting algorithm, such as quicksort or mergesort. 3. Utilizing other libraries or frameworks that provide sorting functionality, like React's `useSort` hook. However, these alternatives would likely have different performance characteristics and might not be as straightforward to implement as the wrapped and unwrapped approaches using Lodash.
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