Benchmark: jquery speed class filter

HTML Preparation code:

<!DOCTYPE html>
<html>

  <head>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>    
  </head>

  <body>
  
    <h2>Test onglets secondaire N3 </h2>
<ul class="nav nav-tabs onglets-secondaires">
    <li class="active" role="presentation">
        <a id="onglets-onglets-secondaire-n3" href="#content-tabsec-3" data-toggle="tab" aria-selected="true" aria-expanded="true" aria-controls="content-tabsec-3" role="tab"> [Onglet - 1] </a>
    </li>
    <li role="presentation">
        <a id="tabsec-4" href="#content-tabsec-4" data-toggle="tab" aria-controls="content-tabsec-4" role="tab"> [Onglet - 2] </a>
    </li>
    <li role="presentation">
        <a id="onglets-onglets-secondaire-n3-data" href="#content-tabsec-4" data-mw-onglet-secondaire-nom="Onglet 3 - DATA" data-toggle="tab" aria-controls="content-tabsec-5" role="tab"> [Onglet - 3 avec data] </a>
    </li>
</ul>
  </body>

</html>

Tests:

class
$("[class='nav nav-tabs onglets-secondaires']");
.
$('.nav.nav-tabs.onglets-secondaires li');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
class
.

Fastest: N/A

Slowest: N/A

Latest run results:

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

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Let's break down the provided benchmark and explain what's being tested, the different approaches compared, their pros and cons, and other considerations.

**Benchmark Overview**

The provided benchmark is for measuring the speed of filtering classes in jQuery. The benchmark uses two different methods to achieve this:

1. Using a dollar sign ($) prefix with the class selector: `"$([class='nav nav-tabs onglets-secondaires']");`
2. Using a dot (.) operator to access the class attribute directly: `".nav.nav-tabs.onglets-secondaires li";`

**Library and Purpose**

The library being used is jQuery, which is a popular JavaScript library for DOM manipulation and event handling.

In this benchmark, jQuery is used to filter elements based on their class attributes. The `class` method in jQuery returns an array of matched elements that have the specified class.

**Approach 1: Dollar Sign Prefix**

This approach uses the `$` symbol to prefix the class selector. This is a common convention in jQuery for accessing DOM elements using a selector.

Pros:

* Simplifies the code and makes it more readable
* Easier to maintain and debug

Cons:

* May be slower due to the overhead of parsing the selector and executing the dollar sign prefix

**Approach 2: Dot Operator**

This approach uses the dot (.) operator to access the class attribute directly.

Pros:

* Can be faster since it avoids the overhead of parsing the selector
* More concise code

Cons:

* May require more manual maintenance and debugging, as the dot notation needs to be used consistently throughout the code

**Other Considerations**

When comparing these two approaches, we need to consider factors such as performance, maintainability, and readability.

In general, using the `$` symbol prefix can make the code more readable and easier to understand, but it may come at a slight cost in terms of performance. The dot operator approach can be faster, but it requires more manual attention to detail and consistency in its usage.

**Alternatives**

If you need to benchmark other class selection methods or approaches, here are some alternatives:

* Using `document.querySelector()` instead of `$()`
* Using an underscore (_) prefix with the class selector (e.g., `_class='nav nav-tabs onglets-secondaires'`)
* Using a CSS class attribute and accessing it using `document.getElementsByClassName()`

Related benchmarks:

jquery speed class filter (version: 0)

Comparing performance of: class vs .

Created: 9 years ago by: Guest

Jump to the latest result

class

.

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):