Benchmark: Lodash.js vs Native isArray

HTML Preparation code:

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

Script Preparation code:

var arr = ['12', 'caca', 'maca', 'benchmark'];

Tests:

Native
Array.isArray(arr);
Lodash.js filter
_.isArray(arr);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Native
Lodash.js filter

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 4 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:133.0) Gecko/20100101 Firefox/133.0

Browser/OS: Firefox 133 on Mac OS X 10.15

View result in a separate tab

Test name	Executions per second
Native	267694368.0 Ops/sec
Lodash.js filter	277579616.0 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):

LLMs can make mistakes. Check important info.

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

**What is being tested?**

The benchmark compares two approaches to check if an array is not empty:

1. **Native**: The native JavaScript way to check if an array is not empty using `Array.isArray(arr)`.
2. **Lodash.js filter**: Using the Lodash library to check if an array is not empty by filtering out non-empty elements.

**Options compared**

The benchmark compares two approaches:

* **Native**: Using the built-in JavaScript function `Array.isArray()` to check if an array is not empty.
* **Lodash.js filter**: Using the Lodash library's `_isArray` function to check if an array is not empty by filtering out non-empty elements.

**Pros and Cons of each approach**

1. **Native:**
	* Pros:
		+ Built-in JavaScript function, so no additional dependencies needed.
		+ Generally faster execution speed since it doesn't require a function call overhead.
	* Cons:
		+ May not be as readable or maintainable for some developers due to its concise syntax.
2. **Lodash.js filter:**
	* Pros:
		+ More readable and maintainable code, especially for developers familiar with Lodash.
		+ Can be useful in more complex scenarios where multiple checks are needed.
	* Cons:
		+ Requires the Lodash library, which can add overhead due to its size and complexity.
		+ Generally slower execution speed compared to native JavaScript.

**Library usage - Lodash.js**

The benchmark uses the Lodash library, a popular utility library for functional programming in JavaScript. The `_isArray` function is used to check if an array is not empty by filtering out non-empty elements. This allows developers to focus on the logic of their code without worrying about implementing the array checks themselves.

**Special JS feature - none**

There are no special JavaScript features or syntax mentioned in this benchmark.

**Other alternatives**

Other alternatives for checking if an array is not empty include:

* Using a simple loop: `if (arr.length > 0) { /* code */ }`
* Using a more complex function: `function isEmptyArray(arr) { return arr.length === 0; }`

However, the native JavaScript approach (`Array.isArray()` or `if (arr.length > 0)`) is generally considered the most concise and efficient way to check if an array is not empty.

Related benchmarks:

Lodash.js vs Native isArray (version: 0)

Comparing performance of: Native vs Lodash.js filter

Created: 6 years ago by: Guest

Jump to the latest result

Native

Lodash.js filter

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):