Benchmark: lodash.filter vs js native

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var array = ['a', undefined, 'b', 1, undefined, 2, 3, undefined, undefined]

Tests:

lodash.filter
_.filter(array, data => { return data !== undefined && data !== null });
array filter
array.filter(data => { return data !== undefined && data !== null });

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lodash.filter
array filter

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.54 Safari/537.36

Browser/OS: Chrome 101 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
lodash.filter	640217.5 Ops/sec
array filter	796025.1 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated 5 months ago):

LLMs can make mistakes. Check important info.

Let's dive into the benchmark.

**What is tested:**

The provided JSON represents a JavaScript microbenchmark that compares the performance of two approaches to filter out `undefined` and `null` values from an array:

1. **Lodash's `filter()` function**: The first test case uses Lodash, a popular utility library for JavaScript.
2. **Native JavaScript `filter()` function**: The second test case tests the native JavaScript implementation of the `filter()` function.

**Options compared:**

The benchmark compares two options:

A) Using the `filter()` function provided by Lodash (`_.filter()`).
B) Implementing a custom filter using only standard JavaScript features (`array.filter()`).

**Pros and Cons:**

**Lodash's `.filter()` function:**

Pros:

* Convenience: Lodash provides a pre-built, tested, and optimized function for filtering arrays.
* Abstraction: The `filter()` function abstracts away the implementation details, making it easier to write concise code.

Cons:

* Overhead: Using an external library like Lodash introduces additional overhead due to:
	+ Loading the library
	+ Creating a new scope for the function
	+ Adding potential dependencies and versioning issues

**Native JavaScript `filter()` function:**

Pros:

* Native performance: Implementing a custom filter using native JavaScript features can lead to better performance, as it avoids the overhead of an external library.
* Control: You have direct control over the implementation details, allowing for optimization and customization.

Cons:

* Code complexity: Writing a custom filter requires understanding the underlying array data structure and implementing the logic yourself.
* Potential errors: Without proper testing and optimization, your custom implementation might contain errors or performance regressions.

**Library (Lodash):**

Lodash is a popular utility library for JavaScript that provides a wide range of functions for tasks like filtering arrays. The `filter()` function is just one of many utility functions available in Lodash. Other benefits of using Lodash include:

* Convenience: Many developers are already familiar with Lodash and its API.
* Test coverage: Lodash has extensive test coverage, ensuring that the implementation is correct and efficient.

**Special JS feature or syntax:**

There is no mention of any special JavaScript features or syntax in the provided benchmark. The tests only rely on standard JavaScript features and libraries (Lodash).

**Other alternatives:**

If you're interested in exploring alternative approaches, here are some options:

* Use a different utility library like `underscore.js` or `ramda`.
* Implement a custom filter using other libraries like `fastify-filter` or `lodash-es`.
* Consider using native JavaScript's built-in functions like `Array.prototype.filter()` or `Array.prototype.every()`.

Keep in mind that the choice of approach depends on your specific use case, performance requirements, and personal preferences.

Related benchmarks:

lodash.filter vs js native (version: 0)

Remove undefined/null from array

Comparing performance of: lodash.filter vs array filter

Created: 2 years ago by: Registered User

Jump to the latest result

lodash.filter

array filter

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 5 months ago):