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test map lodash vs array
(version: 0)
Comparing performance of:
array vs lodash
Created:
3 years ago
by:
Guest
Jump to the latest result
HTML Preparation code:
<script src="lodash.js"></script>
Script Preparation code:
var array = []; for (let i =0; i< 100000;i++) { array.push({id: i}) }
Tests:
array
array.map(n => n.id)
lodash
_.map(array,n => n.id)
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
array
lodash
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 benchmark and its results. **Benchmark Overview** The benchmark compares the performance of two approaches: using the native JavaScript `map` function on an array, and using the popular utility library Lodash with its `_.map()` function. **Options Compared** There are two options being compared: 1. **Native JavaScript `map`**: This is a built-in JavaScript function that takes an array as input and returns a new array with the results of applying a provided function to each element. 2. **Lodash _.map()**: Lodash is a utility library for JavaScript that provides a wide range of helper functions, including `_.map()`, which does essentially the same thing as the native JavaScript `map` function. **Pros and Cons** * **Native JavaScript `map`**: + Pros: Built-in, no additional dependencies required. + Cons: May be slower due to overhead of the Lodash library. * **Lodash _.map()**: + Pros: Can provide additional functionality beyond just mapping an array (e.g., memoization, caching). + Cons: Requires an additional dependency (the Lodash library). **Library and Purpose** In this benchmark, Lodash is used to provide the `_.map()` function. The purpose of Lodash is to provide a set of reusable, modular functions that can simplify common tasks in JavaScript programming. **Special JS Feature or Syntax** There are no special JavaScript features or syntaxes mentioned in the provided benchmark. However, it's worth noting that some versions of JavaScript (e.g., ES6+) may provide additional functional programming features that could potentially affect performance comparisons like this one. **Other Alternatives** If you wanted to compare other approaches for mapping an array, you might consider: * Using a different utility library, such as Underscore.js or Ramda. * Implementing your own mapping function from scratch. * Using a different programming paradigm (e.g., using a data structure like a queue to iterate over the array). **Benchmark Preparation Code** The provided preparation code creates an array with 100,000 elements and pushes a simple object onto it for each iteration. The `map` function is applied to this array in two different ways: once using the native JavaScript `map`, and once using Lodash's `_.map()`. The test name "test map lodash vs array" clearly indicates that this benchmark is comparing the performance of these two approaches. Overall, this benchmark provides a useful comparison between two common approaches for mapping an array in JavaScript.
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