Benchmark: tooltip js - MeasureThat.net

HTML Preparation code:

<ul>
  	<li class="js-tooltip-container">
      <button class="js-tooltip-opener" aria-controls="1">開く</button>
      <div class="js-tooltip" id="1"></div>
  	</li>
</ul>

Tests:

from container
const container = document.getElementsByClassName('js-tooltip-container')[0]; const opener = container.getElementsByClassName('js-tooltip-opener')[0]; const self = container.getElementsByClassName('js-tooltip')[0];
from aria
const self = document.getElementsByClassName('js-tooltip')[0]; const opener = document.querySelector(`[aria-controls="${self.id}"]`)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
from container
from aria

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

This benchmark does not have any results yet. Be the first one to run it!

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

LLMs can make mistakes. Check important info.

Let's dive into the JavaScript microbenchmark on MeasureThat.net.

**Benchmark Overview**

The benchmark is designed to test the performance of two approaches for retrieving elements in a DOM tree: using `getElementsByClassName` from an element (Approach 1), and using `querySelector` with an attribute selector (Approach 2). The benchmark creates a simple HTML structure with a container, opener, and tooltip elements, and then measures how quickly these elements can be accessed using each approach.

**Benchmark Definition**

The benchmark definition is represented by the provided JSON:
```json
{
    "Name": "tooltip js",
    "Description": null,
    "Script Preparation Code": null,
    "Html Preparation Code": "<ul>\r\n  \t<li class=\"js-tooltip-container\">\r\n      <button class=\"js-tooltip-opener\" aria-controls=\"1\">開く</button>\r\n      <div class=\"js-tooltip\" id=\"1\"></div>\r\n  \t</li>\r\n</ul>"
}
```
This code defines a simple HTML structure with a container, opener, and tooltip elements.

**Individual Test Cases**

The benchmark consists of two test cases:

1. **"from container"`**:
```javascript
const container = document.getElementsByClassName('js-tooltip-container')[0];
const opener = container.getElementsByClassName('js-tooltip-opener')[0];
const self = container.getElementsByClassName('js-tooltip')[0];
```
This approach retrieves the `opener` element by traversing up from the `container` element, and then retrieves the `self` element using `getElementsByClassName`. This approach relies on the fact that the `aria-controls` attribute is set to match the `id` of the tooltip element.

2. **"from aria"`**:
```javascript
const self = document.getElementsByClassName('js-tooltip')[0];
const opener = document.querySelector(`[aria-controls=\"${self.id}\"]`);
```
This approach retrieves the `opener` element by querying the DOM for an element with the specified attribute value, which is set to match the `id` of the tooltip element.

**Library and Features**

The benchmark uses the following JavaScript libraries:

* None explicitly mentioned in the code.

However, it does use some JavaScript features:

* The `getElementsByClassName` method.
* The `querySelector` method (specifically with an attribute selector).

No special JS features or syntax are used beyond these standard methods.

**Pros and Cons of Each Approach**

1. **"from container"`**
	* Pros:
		+ More straightforward and efficient, as it only requires a single DOM traversal.
	* Cons:
		+ May be slower due to the additional DOM traversal required to retrieve the `opener` element.
2. **"from aria"`**
	* Pros:
		+ Can be faster, as it uses an attribute selector that can bypass some of the DOM traversal overhead.
	* Cons:
		+ Requires more complex query logic, which may introduce additional parsing and processing overhead.

**Other Alternatives**

If you wanted to test different approaches for retrieving elements in a DOM tree, here are some alternatives:

1. Using `querySelectorAll` instead of `getElementsByClassName`.
2. Using `getElementById` or `getElementByTagName` instead of `getElementsByClassName`.
3. Using a CSS selector library like Sizzle or jQuery to query the DOM.
4. Using a more advanced query algorithm, such as the " CSSOM Query Algorithm" described in the W3C CSSOM specification.

Keep in mind that these alternatives may have different performance characteristics and trade-offs, depending on the specific use case and requirements.

Related benchmarks:

tooltip js (version: 0)

Comparing performance of: from container vs from aria

Created: 4 years ago by: Guest

Jump to the latest result

from container

from aria

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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