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Flatmap bruno
(version: 0)
Comparing performance of:
flatMap Concat vs flatMap reduce vs flatMap lodash
Created:
5 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>
Script Preparation code:
var arr = [['a', 'b', 'd']];
Tests:
flatMap Concat
const flatMap = (array) => { return [].concat(...array) } flatMap(arr);
flatMap reduce
const flatMap = (array) => { return array.reduce((acc, val) => acc.concat(val)); } flatMap(arr);
flatMap lodash
_.flatMap(arr);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
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Test case name
Result
flatMap Concat
flatMap reduce
flatMap lodash
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 provided Benchmark Definition JSON and explain what's being tested, compared, and their pros and cons. **Benchmark Overview** The benchmark measures the performance of three different approaches to implementing the `flatMap` function in JavaScript: 1. Manual implementation using `Array.prototype.concat()` 2. Manual implementation using `Array.prototype.reduce()` 3. Using the popular utility library Lodash **Options Compared** The three options are compared in terms of their execution time, which is measured in executions per second (EPS). * **Manual Implementation 1: Concat**: This approach uses the `concat()` method to flatten the array. + Pros: - Simple and easy to understand - Widely supported by browsers + Cons: - Can be slow for large arrays due to the overhead of creating new arrays * **Manual Implementation 2: Reduce**: This approach uses the `reduce()` method to flatten the array. + Pros: - More efficient than `concat()` for large arrays - Allows for more control over the flattening process + Cons: - Can be more complex and harder to understand, especially for those without experience with reduce() * **Lodash Implementation**: This approach uses the `_flatMap()` function from Lodash, a popular utility library. + Pros: - Highly optimized and efficient - Reduces boilerplate code and makes it easier to write maintainable code + Cons: - Requires including an additional library, which can add overhead - May not be suitable for all projects due to the added dependency **Library: Lodash** Lodash is a popular JavaScript utility library that provides a wide range of functions for tasks such as array manipulation, string manipulation, and object manipulation. The `_flatMap()` function is part of Lodash's Array utility module. The `_flatMap()` function takes an array and returns a new array with the results of applying a provided callback function to each element in the original array. In this benchmark, `_.flatMap(arr)` is used to flatten the array. **Special JavaScript Feature/Syntax: None** There are no special JavaScript features or syntax being tested in this benchmark. **Alternative Approaches** Other approaches to implementing the `flatMap` function could include: * Using a custom implementation with a different algorithm (e.g., using `Array.prototype.map()` and then concatenating the results) * Using a library other than Lodash, such as Moment.js for date manipulation * Implementing the `flatMap` function using a just-in-time (JIT) compiler or a dynamic recompilation system However, these alternatives are not being tested in this benchmark.
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