Benchmark: lodash vs native foreach 1

HTML Preparation code:

<script src='https://cdn.jsdelivr.net/npm/lodash@4.17.10/lodash.min.js'></script>

Tests:

native
var x = 0; for (var i = 0; i < 10000; i++) { x++; }
Array.forEach
var x = 0; Array(10000).forEach(function (i) { x++; });
Lodash forEach
var x = 0; _.forEach(Array(10000), function (i) { x++; });

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
native
Array.forEach
Lodash forEach

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:80.0) Gecko/20100101 Firefox/80.0

Browser/OS: Firefox 80 on Windows

View result in a separate tab

Test name	Executions per second
native	76162.1 Ops/sec
Array.forEach	34867.6 Ops/sec
Lodash forEach	23600.2 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's dive into the provided JSON benchmark data.

**Benchmark Overview**

The benchmark compares the performance of three approaches: native `for` loop, `Array.forEach`, and `Lodash`.forEach`. The goal is to measure which approach is faster for iterating over an array of 10,000 elements and incrementing a variable.

**Options Compared**

1. **Native `for` loop**: This is a traditional, hand-crafted loop that uses a counter variable (`i`) to iterate over the array.
2. **Array.forEach**: This is a built-in JavaScript method that allows you to execute a function for each element in an array without having to manually manage the iteration process.
3. **Lodash.forEach**: This is a utility function from the Lodash library (a popular JavaScript library) that provides a convenient way to iterate over arrays.

**Pros and Cons**

1. **Native `for` loop**:
	* Pros: Simple, low-overhead, and easy to understand.
	* Cons: Requires manual management of iteration, which can lead to errors if not done correctly.
2. **Array.forEach**:
	* Pros: Convenient, built-in method that eliminates the need for manual iteration.
	* Cons: May have performance overhead due to the JavaScript engine's interpretation and execution.
3. **Lodash.forEach**:
	* Pros: Provides a convenient way to iterate over arrays with minimal code.
	* Cons: Introduces additional overhead due to the Lodash library.

**Library Used**

The `_.forEach` function in the benchmark uses the Lodash library, which is a utility belt for JavaScript. Lodash provides many useful functions for tasks like iteration, array manipulation, and more. The library allows developers to write less code and focus on the logic of their application without worrying about low-level details.

**Special JS Features or Syntax**

There are no special JavaScript features or syntax used in this benchmark. The focus is on comparing the performance of three different iteration approaches.

**Other Alternatives**

If you want to explore alternative iteration methods, here are a few:

1. **`for...of` loop**: This is another built-in JavaScript loop that allows you to iterate over arrays and other iterable objects without manual management.
2. **`map()`, `filter()`, and `reduce()``: These array methods can be used in conjunction with iteration to perform complex operations on arrays.

In summary, the benchmark provides a simple yet informative way to compare the performance of different iteration approaches in JavaScript. By understanding the pros and cons of each approach, developers can make informed decisions about which method to use for their specific needs.

Related benchmarks:

lodash vs native foreach 1 (version: 0)

Comparing performance of: native vs Array.forEach vs Lodash forEach

Created: 4 years ago by: Guest

Jump to the latest result

native

Array.forEach

Lodash forEach

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):