Benchmark: lodash.each vs Object.forEach

HTML Preparation code:

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

Script Preparation code:

var value = {a: 30310, b: 100303, c: 3040494}

Tests:

lodash.each
_.each(value, function(v,k) {})
native
Object.entries(value).forEach(function(v,k) {})

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

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 11_2_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.192 Safari/537.36

Browser/OS: Chrome 88 on Mac OS X 11.2.2

View result in a separate tab

Test name	Executions per second
lodash.each	3001210.0 Ops/sec
native	3903491.8 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's dive into the world of JavaScript microbenchmarks on MeasureThat.net.

**What is tested?**

The benchmark measures the performance difference between using Lodash's `_.each` function and the built-in `Object.forEach()` method in JavaScript.

**Options compared:**

There are two options being compared:

1. **Lodash's `_.each`**: A utility function that applies a callback function to each element of an array-like object.
2. **Built-in `Object.forEach()`**: A method that executes a provided function once for each element in an array.

**Pros and Cons:**

* **Lodash's `_.each`:**
	+ Pros:
		- More flexible, as it can handle arrays with different lengths and types of elements.
		- Can be used for more complex operations than just iterating over arrays.
	+ Cons:
		- Adds an extra layer of complexity due to the use of a separate library.
		- May have overhead due to the need to import and initialize Lodash.
* **Built-in `Object.forEach()`:**
	+ Pros:
		- Lightweight and efficient, as it's built into the JavaScript engine.
		- Native performance optimization.
	+ Cons:
		- Limited to array-like objects (not true arrays) with a limited number of elements.

**Library and purpose:**

* **Lodash**: A popular utility library for JavaScript that provides a wide range of functional programming helpers, including `_.each`. Its primary purpose is to provide concise and efficient solutions for common tasks in JavaScript development.

**Special JS feature or syntax:**

There are no special JS features or syntax mentioned in the provided benchmark. Both options use standard JavaScript constructs.

**Other alternatives:**

If you prefer not to use Lodash, there are other ways to iterate over arrays in JavaScript:

* **For loops**: The classic way to iterate over arrays using a traditional `for` loop.
* **Array.prototype.forEach()**: Similar to the built-in `Object.forEach()` method, but for true arrays (not array-like objects).
* **Reduce()**: A method that applies a callback function to each element of an array and reduces it to a single value.

Keep in mind that these alternatives may not be as efficient or convenient as using Lodash's `_.each` or the built-in `Object.forEach()` method.

Related benchmarks:

lodash.each vs Object.forEach (version: 0)

Comparing performance of: lodash.each vs native

Created: 6 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 2 months ago):