Benchmark: data hook jQuery selector

HTML Preparation code:

<div id="foo" class="bar" data-hook="test">Hello World</div>
<script src="//ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.slim.min.js"></script>

Tests:

jQuery Data Hook Selector
$('[data-hook="test"]');
jQuery Data Hook Selector without value
$('[data-hook]');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
jQuery Data Hook Selector
jQuery Data Hook Selector without value

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

**Benchmark Overview**

MeasureThat.net is a website that allows users to create and run JavaScript microbenchmarks. The provided benchmark definition json represents two individual test cases for measuring the performance of jQuery's data hook selector feature.

**Tested Options**

The provided test cases compare two different approaches:

1. **jQuery Data Hook Selector with Value**: `$('[data-hook="test"]');`
2. **jQuery Data Hook Selector without Value**: `$('[data-hook]');`

These options are compared to measure the performance difference in selecting elements using jQuery's data hook selector feature.

**Pros and Cons of Each Approach**

1. **jQuery Data Hook Selector with Value**
	* Pros:
		+ Provides more precise control over the selection process, as it takes into account the exact value specified in the `data-hook` attribute.
		+ Can be useful when working with specific attributes or values.
	* Cons:
		+ May lead to slower performance due to the additional overhead of comparing the selector string with the `data-hook` value.
2. **jQuery Data Hook Selector without Value**
	* Pros:
		+ Faster performance, as it relies on a simpler comparison between the selector string and an empty string (`''`).
	* Cons:
		+ May lead to less precise results, as it relies on the browser's internal caching and optimization mechanisms.

**Library and Purpose**

In both test cases, jQuery is used as a library. The primary purpose of using jQuery in these tests is to leverage its data hook selector feature, which allows for efficient element selection based on custom attribute values.

**Special JS Feature or Syntax**

There is no special JavaScript feature or syntax explicitly mentioned in the benchmark definition json. However, it's worth noting that the `data-hook` attribute is a custom attribute introduced by jQuery, and its usage requires knowledge of the library's internal workings.

**Other Considerations**

When testing performance-critical code like this, it's essential to consider other factors, such as:

* **Caching mechanisms**: Browsers have built-in caching mechanisms for frequently accessed resources, which can impact performance.
* **Browser differences**: Different browsers may exhibit varying levels of optimization and caching, affecting the test results.
* **JavaScript engine optimizations**: The JavaScript engine used by the browser may also introduce performance variations.

**Alternative Testing Approaches**

If you want to create your own benchmarking framework using MeasureThat.net or a similar tool, here are some alternative testing approaches:

* Use more complex selector patterns, such as nested selectors or attribute selectors.
* Introduce additional noise in the HTML structure, like randomly generated elements or CSS rules.
* Compare different rendering engines (e.g., Blink vs. Gecko) to measure performance variations.
* Investigate edge cases, such as large datasets or extreme values for attributes.

Keep in mind that when creating benchmarks, it's essential to carefully consider the test design and execution environment to ensure accurate and reliable results.

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36

Browser/OS: Chrome 96 on Windows

View result in a separate tab

Test name	Executions per second
jQuery Data Hook Selector	152641.3 Ops/sec
jQuery Data Hook Selector without value	144002.8 Ops/sec

Related benchmarks:

data hook jQuery selector (version: 0)

Comparing performance of: jQuery Data Hook Selector vs jQuery Data Hook Selector without value

Created: 2 years ago by: Guest

Jump to the latest result

jQuery Data Hook Selector

jQuery Data Hook Selector without value

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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