Benchmark: JQuery: test find by id vs find by id and attribute

HTML Preparation code:

<div id="test1" data-sel-panel>
          <div>
            <h3></h3>
            <div>
              <label></label>
              <select></select>
            </div>
          </div>
</div>
<div id="test2" data-sel-panel>
          <div>
            <h3></h3>
            <div>
              <label></label>
              <select></select>
            </div>
          </div>
</div>
<div id="test3" data-sel-panel>
          <div>
            <h3></h3>
            <div>
              <label></label>
              <select></select>
            </div>
          </div>
</div>
<div id="test4" data-sel-panel>
          <div>
            <h3></h3>
            <div>
              <label></label>
              <select></select>
            </div>
          </div>
</div>
<div id="test5" data-sel-panel>
          <div>
            <h3></h3>
            <div>
              <label></label>
              <select></select>
            </div>
          </div>
</div>
<div id="test6" data-sel-panel>
          <div>
            <h3></h3>
            <div>
              <label></label>
              <select></select>
            </div>
          </div>
</div>
<div id="test7" data-sel-panel>
          <div>
            <h3></h3>
            <div>
              <label></label>
              <select></select>
            </div>
          </div>
</div>
<div id="test8" data-sel-panel>
          <div>
            <h3></h3>
            <div>
              <label></label>
              <select></select>
            </div>
          </div>
</div>
<div id="test9" data-sel-panel>
          <div>
            <h3></h3>
            <div>
              <label></label>
              <select></select>
            </div>
          </div>
</div>
<div id="test10" data-sel-panel>
          <div>
            <h3></h3>
            <div>
              <label></label>
              <select></select>
            </div>
          </div>
</div>

<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.js'></script>

Tests:

Find by id
$("#test1");
Find by id and attribute
$("#test1 data-sel-panel");

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Find by id
Find by id and attribute

Fastest: N/A

Slowest: N/A

Latest run results:

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

LLMs can make mistakes. Check important info.

Let's break down what's being tested in this benchmark.

**Benchmark Overview**

The benchmark compares the performance of two approaches to find elements on a webpage using jQuery: finding an element by its `id` attribute and finding an element by both its `id` attribute and another attribute (`data-sel-panel`).

**Options Being Compared**

There are two options being compared:

1. **Find by id**: This approach uses the `$()` function to select an element by its `id` attribute.
2. **Find by id and attribute**: This approach also uses the `$()` function, but with an additional argument (`data-sel-panel`) that specifies a CSS selector to match.

**Pros and Cons of Each Approach**

1. **Find by id**:
	* Pros: Simple and efficient, as it only requires a single DOM lookup.
	* Cons: May not be optimal if the element is hidden or not present in the DOM.
2. **Find by id and attribute**:
	* Pros: More flexible and efficient than finding by `id` alone, as it allows for more precise matching.
	* Cons: Requires an additional argument, which can lead to slower performance due to increased parsing overhead.

**Library Used**

In this benchmark, jQuery is used as the library. Its `$()` function is a crucial part of the test, as it provides a convenient way to select elements on the webpage.

**Special JavaScript Feature or Syntax**

There doesn't seem to be any special JavaScript feature or syntax being tested in this benchmark.

**Other Considerations**

The benchmark is using a real-world browser (Firefox 79) and a desktop platform (Windows) to simulate a typical user experience. The test cases are designed to cover both common use cases: finding an element by its `id` attribute and finding an element by both its `id` attribute and another attribute.

**Alternative Approaches**

Other approaches to find elements on a webpage could include:

1. **Using the `document.getElementById()` method**: This is a native JavaScript function that can be used to select an element by its `id` attribute.
2. **Using a CSS selector library**: Libraries like Sizzle or CSS Selectors provide more powerful and flexible ways to select elements on a webpage using CSS selectors.

Overall, this benchmark provides a useful comparison of two common approaches to find elements on a webpage using jQuery, highlighting the trade-offs between simplicity, efficiency, and flexibility.

Related benchmarks:

JQuery: test find by id vs find by id and attribute (version: 0)

Compare solutions for finding elements

Comparing performance of: Find by id vs Find by id and attribute

Created: 5 years ago by: Registered User

Jump to the latest result

Find by id

Find by id and attribute

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):