Benchmark: attribute selector

HTML Preparation code:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div class="items-wrapper">
    <div class="item">Hans</div>
    <div class="item">Done</div>
    <div class="item">Xaver</div>
    <div class="item">Fredl</div>
    <div class="item" rel="js--items-wrapper__item">Sepp</div>
</div>

<div class="wrapper-x">
    Lorem ipsum dolor sit amet, consectetur adipisicing elit. Accusamus necessitatibus nihil nulla praesentium. A
    accusamus consequuntur, facilis fugit minus, nulla odio qui quod quos repudiandae, sequi similique voluptas
    voluptate voluptates.
</div>

<div class="wrapper-y">
    <div class="test">Hans</div>
</div>
</body>
</html>
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>

Tests:

Vanilla
var vanilla = document.querySelector("[rel='js--items-wrapper__item']");
JQuery
var jquery = $("[rel='js--items-wrapper__item']");

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Vanilla
JQuery

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 28 days ago):

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and its test cases.

**Benchmark Definition JSON:**
The benchmark definition is a JSON object that represents a JavaScript microbenchmark. It has several properties:

* `Name`: A unique name for the benchmark, which in this case is "attribute selector".
* `Description`: An optional description of the benchmark.
* `Script Preparation Code` and `Html Preparation Code`: These are code snippets used to prepare the HTML document and JavaScript script for the benchmark.

In this case, the `Script Preparation Code` is empty, and the `Html Preparation Code` creates a simple HTML document with several `<div>` elements that contain text. The HTML structure includes attribute selectors (`[rel='js--items-wrapper__item']`) that are used in the test cases.

**Individual Test Cases:**
The benchmark has two individual test cases:

1. "Vanilla":
	* `Benchmark Definition`: A vanilla JavaScript code snippet that uses `document.querySelector` to select an element with a specific attribute (`[rel='js--items-wrapper__item']`).
2. "JQuery":
	* `Benchmark Definition`: A jQuery code snippet that uses `$` to select an element with the same attribute.

**Library and Purpose:**
In both test cases, we have two libraries:

1. Vanilla JavaScript:
	* No additional library is required for this benchmark.
2. jQuery:
	* The `jQuery` library is used to simplify DOM manipulation using its own API.

**Special JS Feature or Syntax:**
There are no special JavaScript features or syntax mentioned in the provided code snippets. Both test cases use standard JavaScript and jQuery APIs.

**Pros and Cons of Different Approaches:**

1. Vanilla JavaScript:
	* Pros:
		+ No external dependencies.
		+ Can be optimized for performance.
	* Cons:
		+ May require more manual DOM manipulation.
2. jQuery:
	* Pros:
		+ Simplifies DOM manipulation using a familiar API.
		+ Often used in production code, so developers are likely already familiar with it.
	* Cons:
		+ Adds an external dependency.
		+ Can introduce overhead due to its event-driven nature.

**Other Considerations:**

1. Performance: The benchmark measures the execution speed of both vanilla JavaScript and jQuery for the specific attribute selector. This allows users to compare the performance of these two approaches in different scenarios.
2. Browser Support: The benchmark is executed on a Chrome browser, which may not be representative of other browsers or environments.

**Alternatives:**
If you wanted to create a similar benchmark, you could use alternative libraries or frameworks that provide DOM manipulation APIs, such as:

1. React
2. Angular
3. Vue.js

Keep in mind that each library has its own strengths and weaknesses, and the choice of which one to use depends on your specific project requirements.

In conclusion, this benchmark tests the execution speed of vanilla JavaScript and jQuery for attribute selectors, allowing users to compare their performance. The pros and cons of using each approach are considered, as well as other factors such as browser support and alternative libraries.

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Browser/OS: Chrome 128 on Windows

View result in a separate tab

Test name	Executions per second
Vanilla	1789560.5 Ops/sec
JQuery	348597.0 Ops/sec

Related benchmarks:

attribute selector (version: 0)

Comparing performance of: Vanilla vs JQuery

Created: 6 years ago by: Guest

Jump to the latest result

Vanilla

JQuery

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 28 days ago):