Benchmark: for loop vs. lodash range foreach - ks

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/2.4.1/lodash.js"></script>

Tests:

for
Array(1000); var x = 0; for (var i = 0; i < 10000; i++) { x++; }
lodash range foreach
var x = 0; _.range(10000).forEach(function (i) { x++; });
array foreach
var x = 0; Array(10000).forEach(function (i) { x++; });
array lodash foreach
var x = 0; _.forEach(Array(10000), function (i) { x++; });
lodash range lodash foreach
var x = 0; _.forEach(_.range(10000), function (i) { x++; });

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
for
lodash range foreach
array foreach
array lodash foreach
lodash range lodash foreach

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 25 days ago):

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and explain what's being tested, compared, and their pros/cons.

**Benchmark Overview**

The test cases compare the performance of four different approaches:

1. **For Loop**: A traditional JavaScript for loop that increments a variable `x` 10,000 times.
2. **Lodash Range ForEach**: Uses Lodash (a utility library) to iterate over an array of 10,000 elements and increment a variable `x`.
3. **Array ForEach**: Uses the built-in `forEach` method on an array of 10,000 elements to increment a variable `x`.
4. **Lodash Range Lodash ForEach**: Combines two Lodash functions: `_range` and `forEach`.

**Library Overview**

Lodash is a popular JavaScript utility library that provides various functions for tasks such as iteration, string manipulation, data transformation, and more.

* `_range`: Returns an array of numbers from 0 to the specified number (exclusive).
* `_.forEach`: Applies a callback function to each element in an array.

**Comparison Overview**

The test cases aim to measure which approach is faster in terms of the number of executions per second on a desktop Linux system with Chrome 74.

**Approach Pros/Cons:**

1. **For Loop**: Simple, straightforward, and easy to understand.
	* Pros: Well-established, widely supported, and familiar to most developers.
	* Cons: Can be slow due to overhead from variable declarations and loop control statements.
2. **Lodash Range ForEach**: Uses Lodash's optimized iteration functions.
	* Pros: Leverages optimized C++ code for iteration, reducing overhead.
	* Cons: Requires an additional dependency (Lodash) and may have a slightly higher learning curve.
3. **Array ForEach**: Uses the built-in `forEach` method on arrays.
	* Pros: Fast, lightweight, and easy to use.
	* Cons: May not be as performant as optimized libraries like Lodash, especially for large datasets.
4. **Lodash Range Lodash ForEach**: Combines two Lodash functions.
	* Pros: Potentially faster due to caching and optimization, but may introduce additional overhead.

**Special JS Feature/Syntax**

None of the provided test cases use any special JavaScript features or syntax that are not widely supported.

**Alternatives**

If you're looking for alternative benchmarking libraries or tools, consider:

1. **Benchmark.js**: A lightweight, built-in module for measuring the performance of small code snippets.
2. **Mocha**: A popular testing framework that can be used to create benchmarks.
3. **Jest**: Another popular testing framework with a built-in benchmarking feature.

Keep in mind that each alternative has its own strengths and weaknesses, and the choice ultimately depends on your specific use case and requirements.

Latest run results:

Run details: (Test run date: 5 years ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.131 Safari/537.36

Browser/OS: Chrome 74 on Linux

View result in a separate tab

Test name	Executions per second
for	44648.1 Ops/sec
lodash range foreach	2022.4 Ops/sec
array foreach	8726.7 Ops/sec
array lodash foreach	2909.6 Ops/sec
lodash range lodash foreach	2693.7 Ops/sec

Related benchmarks:

for loop vs. lodash range foreach - ks (version: 0)

Comparing performance of: for vs lodash range foreach vs array foreach vs array lodash foreach vs lodash range lodash foreach

Created: 5 years ago by: Registered User

Jump to the latest result

for

lodash range foreach

array foreach

array lodash foreach

lodash range lodash foreach

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 25 days ago):