Benchmark: Lodash.js versus Native

HTML Preparation code:

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

Script Preparation code:

let maxNum = 10000000; // 10,000,000 (10 Million)
var arr = [];
for (let i = 0; i <= maxNum; i++) { arr.push(i); }

Tests:

Native filter
arr.filter((i) => i % 2 === 0);
Lodash.js filter
_.filter(arr,(i) => i % 2 === 0);
Native map
arr.map((i) => i + 1 );
Lodash.js map
_.map(arr,(i) => i + 1 );
Native reduce
arr.reduce((sum, i) => sum + i, 0)
Lodash.js reduse
_.reduce(arr, (sum, i) => sum + i, 0)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Native filter
Lodash.js filter
Native map
Lodash.js map
Native reduce
Lodash.js reduse

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

Let's break down the benchmark and its results.

**Benchmark Definition**

The benchmark compares the performance of two approaches:

1. **Native**: The native JavaScript implementation, which uses the built-in array methods (e.g., `filter`, `map`, `reduce`) without any additional libraries or modifications.
2. **Lodash.js**: The Lodash library, a popular utility library for JavaScript that provides various functions and helpers for tasks like filtering, mapping, and reducing arrays.

**Options Compared**

The benchmark compares the performance of:

* `filter` and `_.filter` (Lodash.js equivalent)
* `map` and `_.map` (Lodash.js equivalent)
* `reduce` and `_.reduce` (Lodash.js equivalent)

**Pros and Cons**

Here's a brief summary of the pros and cons of each approach:

* **Native**:
	+ Pros: No additional dependencies, no performance overhead due to library loading.
	+ Cons: Can be slower than optimized library implementations.
* **Lodash.js**:
	+ Pros: Optimized for performance, handles edge cases, and provides additional functionality.
	+ Cons: Adds dependency on the Lodash library, which can impact load times.

**Library (Lodash)**

Lodash is a popular utility library that provides various functions and helpers for tasks like:

* Array manipulation (`filter`, `map`, `reduce`)
* String manipulation (`upperCase`, `lowerCase`)
* Object manipulation (`clone`, `merge`)
* Function manipulation (`curry`, `bindall`)

Lodash aims to provide a small, modular set of functions that can be easily combined to achieve complex tasks.

**Special JavaScript Feature**

There is no special JavaScript feature or syntax mentioned in the benchmark. However, it's worth noting that some modern browsers have optimized implementations of array methods, such as `filter` and `map`, which can impact performance.

**Other Alternatives**

If you're looking for alternative libraries to Lodash, consider:

* **Underscore.js**: Another popular utility library that provides many of the same functions as Lodash.
* **Lo-Dash**: A minimalist implementation of Lodash's API, optimized for smaller payloads.
* **Native implementations only**: If performance is critical, using native JavaScript methods without any additional libraries can be a good option.

In summary, the benchmark compares the performance of native JavaScript implementations versus Lodash.js for common array operations. While native implementations may have some overhead due to library loading, Lodash.js provides optimized implementations with additional functionality and edge case handling.

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36

Browser/OS: Chrome 78 on Windows

View result in a separate tab

Test name	Executions per second
Native filter	3.7 Ops/sec
Lodash.js filter	3.7 Ops/sec
Native map	5.2 Ops/sec
Lodash.js map	5.5 Ops/sec
Native reduce	5.8 Ops/sec
Lodash.js reduse	6.0 Ops/sec

Related benchmarks:

Lodash.js versus Native (version: 1)

Comparing performance of: Native filter vs Lodash.js filter vs Native map vs Lodash.js map vs Native reduce vs Lodash.js reduse

Created: 4 years ago by: Registered User

Jump to the latest result

Native filter

Lodash.js filter

Native map

Lodash.js map

Native reduce

Lodash.js reduse

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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