Benchmark: lodash.each vs jquery each

HTML Preparation code:

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js"></script>

Script Preparation code:


// Populate the base array
var arr = [];
for (var i = 0; i < 1000; i++) {
  arr[i] = i;
}

function fn(a) {
  return a * 2 * 5;
}

Tests:

lodash.each
_.forEach(arr,fn)
native
arr.forEach(fn)
jquery
$.each(arr, fn);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lodash.each
native
jquery

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 JSON data and explain what's being tested.

**Benchmark Definition**

The benchmark is comparing three different approaches to iterate over an array in JavaScript:

1. `_.forEach(arr, fn)` (Lodash)
2. `arr.forEach(fn)` (Native JavaScript)
3. `$.each(arr, fn);` (jQuery)

These functions all take two arguments: the array to iterate over (`arr`) and a function that will be executed for each element in the array (`fn`).

**Options being compared**

The options being compared are:

* Lodash's `_.forEach()` method
* Native JavaScript's `Array.prototype.forEach()` method
* jQuery's `$.each()` method

Each of these methods has its own pros and cons.

* Lodash's `_.forEach()` method is a utility function that provides a consistent way to iterate over arrays, regardless of the underlying implementation. It's also more flexible than native JavaScript's `forEach()` method, as it allows for more control over the iteration process.
* Native JavaScript's `Array.prototype.forEach()` method is built-in to the language and is therefore very efficient. However, it only works on arrays that support this method (most do), and it doesn't provide as much control over the iteration process as Lodash's equivalent.
* jQuery's `$.each()` method is designed for iterating over arrays in a more traditional, callback-style way. It's also widely supported across different browsers and versions.

**Library: Lodash**

Lodash is a popular JavaScript utility library that provides a wide range of functions for working with arrays, objects, numbers, and more. The `_.forEach()` method is one of its most commonly used utilities.

**Special JS feature/syntax: None mentioned in the benchmark definition**

There are no special JavaScript features or syntax being tested in this benchmark.

**Alternative approaches**

Other alternative approaches to iterate over an array in JavaScript include:

* Using a `for` loop and indexing into the array manually
* Using a `while` loop and incrementing a counter variable
* Using the `map()` method, which returns a new array with the results of applying a function to each element in the original array

However, these approaches are generally less efficient than using one of the three methods being compared in this benchmark.

**Other considerations**

When writing benchmarks like this one, it's essential to consider factors such as:

* Data size: The larger the dataset, the more impact variations in execution speed will have.
* Platform and browser support: Make sure the benchmark is run on a variety of platforms and browsers to ensure accurate results.
* Memory constraints: Be mindful of memory usage, especially when working with large datasets.

By considering these factors, you can write a fair and informative benchmark that helps developers understand the relative performance characteristics of different JavaScript libraries and implementations.

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.100 Safari/537.36

Browser/OS: Chrome 76 on Windows

View result in a separate tab

Test name	Executions per second
lodash.each	77762.4 Ops/sec
native	71586.1 Ops/sec
jquery	33413.2 Ops/sec

Related benchmarks:

lodash.each vs jquery each (version: 0)

Comparing performance of: lodash.each vs native vs jquery

Created: 5 years ago by: Guest

Jump to the latest result

lodash.each

native

jquery

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):