Benchmark: for vs jQuery each

HTML Preparation code:

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.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:

for loop
var l = arr.length; for(var i=0;i<l;i++) { fn(arr[i]); }
jQuery each
$.each(fn);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
for loop
jQuery each

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Safari/537.36 Edg/87.0.664.75

Browser/OS: Chrome 87 on Windows

View result in a separate tab

Test name	Executions per second
for loop	4985.5 Ops/sec
jQuery each	1872673.1 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the provided JSON and explain what's being tested.

**Benchmark Definition**

The test is comparing two approaches to iterate over an array: a traditional `for` loop and jQuery's `$each` method.

**Options Compared**

* Traditional `for` loop
	+ Pros:
		- Wide support across browsers and platforms
		- Efficient memory usage
	+ Cons:
		- Can be verbose, especially for large iterations
		- May not be as flexible as other approaches (e.g., jQuery's `$each`)
* jQuery's `$each` method
	+ Pros:
		- Concise syntax, making it easier to read and write
		- Built-in support for various iteration contexts
	+ Cons:
		- Requires a library (jQuery) to be included in the test environment
		- May not be as efficient as traditional loops in certain situations

**Library: jQuery**

In this benchmark, jQuery is used as a scripting library. Its primary purpose is to simplify DOM manipulation and event handling in web applications.

**Special JS Features/Syntax**

This benchmark does not use any special JavaScript features or syntax that would require specific explanations or considerations.

**Other Alternatives**

Besides the traditional `for` loop and jQuery's `$each` method, other alternatives could include:

* Array.prototype.forEach()
	+ A modern, efficient approach to iterating over arrays, supported by most browsers and platforms.
* Vanilla forEach
	+ Similar to Array.prototype.forEach(), but without relying on a library.

These alternatives would offer similar performance characteristics to the traditional `for` loop and jQuery's `$each` method. However, they might require additional setup or libraries (e.g., Lodash for vanilla `forEach`) compared to using jQuery directly.

**Benchmark Preparation Code**

The provided script preparation code creates an array of 1000 elements and defines a function `fn(a)` that performs a simple calculation on each element. The test then uses this function to iterate over the array in two different ways:

1. Traditional `for` loop
2. jQuery's `$each` method

The HTML preparation code includes a script tag pointing to jQuery's CDN.

**Test Cases**

There are two individual test cases:

1. "for loop"
	+ Uses a traditional `for` loop to iterate over the array.
2. "jQuery each"
	+ Uses jQuery's `$each` method to iterate over the array.

The latest benchmark results show that Chrome 87 executed both tests at different rates, with the `for` loop outperforming the `$each` method.

Related benchmarks:

for vs jQuery each (version: 0)

Comparing performance of: for loop vs jQuery each

Created: 3 years ago by: Guest

Jump to the latest result

for loop

jQuery each

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):