Benchmark: lodash.forOwn vs Native.forEach

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/lodash/4.16.0/lodash.min.js"></script>

Script Preparation code:

var arrayValue = [{a: 30310}, {b: 100303}, {c: 3040494}]
var objectValue = { a: 30310, b: 100303, c: 3040494}

Tests:

lodash.each
_.forOwn(objectValue, function(v,i) {})
native
arrayValue.forEach(function(v,i) {})

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lodash.each
native

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 24 days ago):

LLMs can make mistakes. Check important info.

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

**Benchmark Overview**

The benchmark compares two approaches to iterate over an object: using Lodash's `_.forOwn()` function and the native JavaScript `forEach` method.

**Options Compared**

1. **Lodash's _.forOwn()**: This is a utility function provided by the Lodash library that allows you to iterate over an object using a callback function.
2. **Native JavaScript forEach**: This is a built-in method in JavaScript that allows you to iterate over an array or an iterable object.

**Pros and Cons**

1. **Lodash's _.forOwn()**:
	* Pros: Easy to use, concise syntax, and often used in larger applications where consistency is important.
	* Cons: Adds overhead due to the library, may not be optimized for performance.
2. **Native JavaScript forEach**:
	* Pros: Fast, lightweight, and native to JavaScript, which can lead to better performance.
	* Cons: Requires manual iteration over properties using `in` or `for...in`, which can make code harder to read.

**Library Used**

The Lodash library is used in the benchmark test. Lodash is a popular utility library that provides a wide range of functions for working with JavaScript objects, arrays, and more.

**Special JS Feature/Syntax**

There are no special JavaScript features or syntax being tested in this benchmark. Both approaches use standard JavaScript methods.

**Other Considerations**

When choosing between using Lodash's `_.forOwn()` and native JavaScript `forEach`, consider the following:

* **Performance**: If performance is critical, using native JavaScript `forEach` might be a better choice.
* **Code Readability**: If code readability is important, Lodash's `_.forOwn()` can provide a more concise and consistent way to iterate over objects.
* **Maintenance**: Using an external library like Lodash can make maintenance easier if you're working on multiple projects that require similar functionality.

**Alternative Approaches**

Other alternatives for iterating over objects or arrays in JavaScript include:

1. **Using `for...in` loop**: This approach iterates over object properties using the `in` keyword.
2. **Using `for...of` loop**: This approach is used with array and iterable objects, providing a more concise syntax than `forEach`.
3. **Using `Array.prototype.forEach()`**: This method is similar to native JavaScript `forEach`, but it requires creating an array from your object or iterable.

Each of these alternatives has its pros and cons, and the choice ultimately depends on the specific requirements of your project.

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36

Browser/OS: Chrome 114 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
lodash.each	7005558.5 Ops/sec
native	32661814.0 Ops/sec

Related benchmarks:

lodash.forOwn vs Native.forEach (version: 0)

Comparing performance of: lodash.each vs native

Created: 5 years ago by: Guest

Jump to the latest result

lodash.each

native

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 24 days ago):