Benchmark: jQuery Data vs Class

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>

<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>

Tests:

data
var test = $('[data-attribute="test"]');
class
var test = $('.test');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
data
class

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 27 days ago):

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark.

**What is being tested?**

The benchmark compares two approaches to select elements from HTML: using jQuery's `data-attribute` and using CSS classes (`class`).

**Options compared:**

1. **jQuery Data**: This approach uses jQuery's `data-attribute` method, which sets an attribute on an element and then selects elements based on that attribute.
2. **CSS Class**: This approach uses a CSS class to select elements.

**Pros and Cons of each approach:**

* **jQuery Data**:
	+ Pros:
		- Can be used for multiple attributes (not just data-attribute).
		- Provides more flexibility in selecting elements based on attributes.
	+ Cons:
		- May lead to slower performance due to the overhead of setting and parsing attributes.
		- Requires jQuery library, which may introduce additional dependencies.
* **CSS Class**:
	+ Pros:
		- Fast and lightweight.
		- No additional dependencies required (other than CSS).
	+ Cons:
		- Limited to selecting elements based on a single class.

**Library:**

The benchmark uses the jQuery library for the `data` approach. The `data` method sets an attribute on an element (`data-attribute`) and then selects elements based on that attribute.

**Special JavaScript feature/syntax:**

None mentioned in this specific benchmark.

**Other considerations:**

* Both approaches have their use cases. For example, using jQuery's `data-attribute` might be suitable for a scenario where you need to dynamically set attributes based on user input or API responses.
* The CSS class approach is often preferred when you only need to select elements based on a single class.

**Alternatives:**

Other alternatives to these approaches include:

* **QuerySelector**: A modern JavaScript method for selecting elements based on CSS selectors. It's similar to the CSS class approach but provides more flexibility and features.
* **Document.querySelector**: Another method for selecting elements based on CSS selectors, which is part of the DOM API.

These alternatives can provide a balance between performance and flexibility, making them suitable for various use cases.

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Android 12; Mobile; rv:100.0) Gecko/100.0 Firefox/100.0

Browser/OS: Firefox Mobile 100 on Android

View result in a separate tab

Test name	Executions per second
data	127480.3 Ops/sec
class	392387.3 Ops/sec

Related benchmarks:

jQuery Data vs Class (version: 0)

Comparing performance of: data vs class

Created: 2 years ago by: Guest

Jump to the latest result

data

class

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 27 days ago):