Benchmark: jQuery 1.6.4 addClass/removeClass vs. classList.add/classList.remove

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/1.6.4/jquery.js'></script>
<div id="testadd"></div>
<div id="testremove" class="to-remove"></div>

Tests:

jQuery 1.6.4 addClass
var $el = $('#testadd'); $el.addClass('test-class');
jQuery 1.6.4 removeClass
var $el = $('#testremove'); $el.removeClass('to-remove');
classList add
var el = $('#testadd')[0]; el.classList.add('test-class');
classList remove
var el = $('#testremove')[0]; el.classList.remove('to-remove');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
jQuery 1.6.4 addClass
jQuery 1.6.4 removeClass
classList add
classList remove

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 29 days ago):

LLMs can make mistakes. Check important info.

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

**Benchmark Overview**

The test compares the performance of two approaches to manipulate class names in HTML elements:

1. Using jQuery (`$(el).addClass()` and `$(el).removeClass()`)
2. Using the native `classList` API (`el.classList.add()` and `el.classList.remove()`)

**Options Compared**

* jQuery's `addClass/removeClass` methods vs. native `classList.add/classList.remove`
* jQuery's `removeClass` method vs. native `classList.remove`

**Pros and Cons of Each Approach**

1. **jQuery's `addClass/removeClass` methods**:
	* Pros:
		+ Widespread compatibility across browsers
		+ Easy to use for developers familiar with jQuery
	* Cons:
		+ May introduce additional overhead due to the need to parse and execute a JavaScript function
		+ May not be as efficient as native API calls
2. **Native `classList` API**:
	* Pros:
		+ More efficient, as it directly manipulates the element's class list
		+ Less overhead compared to jQuery's methods
	* Cons:
		+ Requires support for modern browsers (Chrome 118 in this case)
		+ May not be familiar to developers without experience with native APIs

**Library Used**

The test uses jQuery version 1.6.4, which is an older version of the library.

**Special JS Feature/Syntax**

None mentioned explicitly in the benchmark definition or JSON files. However, it's worth noting that the use of `$('#testadd')[0]` and `$('#testremove')[0]` is a common pattern for accessing DOM elements using jQuery, as `el` variables are not accessible directly due to how jQuery works.

**Other Alternatives**

If you were to write this benchmark, you could also consider comparing:

* Using other libraries or frameworks (e.g., React, Angular) that provide similar class management features
* Using CSS classes and manipulations (e.g., `addClass`, `removeClass` using CSS properties)
* Using other native APIs for manipulating class lists (e.g., `DOMTokenList` in modern browsers)

Keep in mind that the choice of alternatives will depend on the specific requirements and goals of your benchmark.

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/118.0.0.0 Safari/537.36

Browser/OS: Chrome 118 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
jQuery 1.6.4 addClass	2208923.5 Ops/sec
jQuery 1.6.4 removeClass	3382883.5 Ops/sec
classList add	3071888.0 Ops/sec
classList remove	2863742.0 Ops/sec

Related benchmarks:

jQuery 1.6.4 addClass/removeClass vs. classList.add/classList.remove (version: 0)

Compare results of $(el).addClass vs. el.classList.add. And compare $(el).removeClass vs. el.classList.remove..

Comparing performance of: jQuery 1.6.4 addClass vs jQuery 1.6.4 removeClass vs classList add vs classList remove

Created: 5 years ago by: Guest

Jump to the latest result

jQuery 1.6.4 addClass

jQuery 1.6.4 removeClass

classList add

classList remove

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 29 days ago):