Benchmark: Filter-Map: Lodash chain vs Native

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>

Script Preparation code:

var data = Array(1000000).fill({ filtering: true, mapping: 42 });

Tests:

Native filter-map
data.filter(({ filtering }) => filtering).map(({ mapping }) => mapping)
Lodash filter-map
_.chain(data).filter('filtering').map('mapping')

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Native filter-map
Lodash filter-map

Fastest: N/A

Slowest: N/A

Latest run results:

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Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

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Let's break down the provided JSON and explain what's being tested.

**Benchmark Overview**

The test measures the performance difference between using native JavaScript functions for filtering and mapping, versus using the Lodash library for the same operations.

**Options Compared**

Two options are compared:

1. **Native filter-map**: This involves using built-in JavaScript methods to filter and map an array. Specifically, `Array.prototype.filter()` and `Array.prototype.map()`.
2. **Lodash filter-map**: This uses the Lodash library's `_.filter()` and `_.map()` functions, which provide additional features like caching and memoization.

**Pros and Cons**

* **Native filter-map**:
	+ Pros: Built-in JavaScript methods are generally faster since they're optimized by the engine.
	+ Cons: Requires explicit array operations, might be less readable or maintainable for complex filtering/mapping scenarios.
* **Lodash filter-map**:
	+ Pros: Provides a more concise and readable way to perform filtering and mapping operations. Lodash also caches results for repeatable operations, which can improve performance.
	+ Cons: Introduces additional overhead due to the library's functionality, might be slower than native methods.

**Library and Purpose**

* **Lodash**: A popular JavaScript utility library that provides a wide range of functions for tasks like filtering, mapping, sorting, and more. It aims to make code more concise and readable by providing a set of pre-built functions that can be chained together.

**Special JS Feature/Syntax**

There are no specific special features or syntax mentioned in the provided JSON. However, it's worth noting that JavaScript engines might optimize certain syntax patterns, like array methods, for better performance.

**Other Alternatives**

For filtering and mapping arrays, other alternatives to Lodash include:

* **Vanilla JavaScript**: As described earlier, using built-in JavaScript methods like `Array.prototype.filter()` and `Array.prototype.map()`.
* **Other libraries**: There are many other utility libraries available that provide similar functionality to Lodash, such as Underscore.js or Ramda.

In summary, the test compares the performance of native JavaScript methods for filtering and mapping against using the Lodash library. The results show that while Lodash provides a more concise way to perform these operations, it might come at a slight performance cost compared to native methods.

Related benchmarks:

Filter-Map: Lodash chain vs Native (version: 0)

Comparing performance of: Native filter-map vs Lodash filter-map

Created: 6 years ago by: Guest

Jump to the latest result

Native filter-map

Lodash filter-map

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):