Benchmark: js selector options

HTML Preparation code:

<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>HTML5 Test Page</title>
  </head>
  <body>
    <div id="top" class="page" role="document">
      <header role="banner">
        <h1>HTML5 Test Page</h1>
        <p>This is a test page filled with common HTML elements to be used to provide visual feedback whilst building CSS systems and frameworks.</p>
      </header>
      <nav role="navigation">
        <ul>
          <li>
            <a href="#text">Text</a>
            <ul>
              <li><a href="#text__headings">Headings</a></li>
              <li><a href="#text__paragraphs">Paragraphs</a></li>
              <li><a href="#text__blockquotes">Blockquotes</a></li>
              <li><a href="#text__lists">Lists</a></li>
              <li><a href="#text__hr">Horizontal rules</a></li>
              <li><a href="#text__tables">Tabular data</a></li>
              <li><a href="#text__code">Code</a></li>
              <li><a href="#text__inline">Inline elements</a></li>
              <li><a href="#text__comments">HTML Comments</a></li>
            </ul>
          </li>
          <li>
            <a href="#embedded">Embedded content</a>
            <ul>
              <li><a href="#embedded__images">Images</a></li>
              <li><a href="#embedded__audio">Audio</a></li>
              <li><a href="#embedded__video">Video</a></li>
              <li><a href="#embedded__canvas">Canvas</a></li>
              <li><a href="#embedded__meter">Meter</a></li>
              <li><a href="#embedded__progress">Progress</a></li>
              <li><a href="#embedded__svg">Inline SVG</a></li>
              <li><a href="#embedded__iframe">IFrames</a></li>
            </ul>
          </li>
          <li>
            <a href="#forms">Form elements</a>
            <ul>
              <li><a href="#forms__input">Input fields</a></li>
              <li><a href="#forms__select">Select menus</a></li>
              <li><a href="#forms__checkbox">Checkboxes</a></li>
              <li><a href="#forms__radio">Radio buttons</a></li>
              <li><a href="#forms__textareas">Textareas</a></li>
              <li><a href="#forms__html5">HTML5 inputs</a></li>
              <li><a href="#forms__action">Action buttons</a></li>
            </ul>
          </li>
        </ul>
      </nav>
      <main role="main">
        <section id="text">
          <header><h1>Text</h1></header>
          <article id="text__headings">
            <header>
              <h1>Headings</h1>
            </header>
            <div>
              <h1>Heading 1</h1>
              <h2>Heading 2</h2>
              <h3>Heading 3</h3>
              <h4>Heading 4</h4>
              <h5>Heading 5</h5>
              <h6>Heading 6</h6>
            </div>
            <footer><p><a href="#top">[Top]</a></p></footer>
          </article>
          <article id="text__paragraphs">
            <header><h1>Paragraphs</h1></header>
            <div>
              <p>A paragraph (from the Greek paragraphos, “to write beside” or “written beside”) is a self-contained unit of a discourse in writing dealing with a particular point or idea. A paragraph consists of one or more sentences. Though not required by the syntax of any language, paragraphs are usually an expected part of formal writing, used to organize longer prose.</p>
            </div>
            <footer><p><a href="#top">[Top]</a></p></footer>
          </article>
          <article id="text__blockquotes">
            <header><h1>Blockquotes</h1></header>
            <div>
              <blockquote>
                <p>A block quotation (also known as a long quotation or extract) is a quotation in a written document, that is set off from the main text as a paragraph, or block of text.</p>
                <p>It is typically distinguished visually using indentation and a different typeface or smaller size quotation. It may or may not include a citation, usually placed at the bottom.</p>
                <cite><a href="#!">Said no one, ever.</a></cite>
              </blockquote>
            </div>
            <footer><p><a href="#top">[Top]</a></p></footer>
          </article>
          <article id="text__lists">
            <header><h1>Lists</h1></header>
            <div>
              <h3>Definition list</h3>
              <dl>
                <dt>Definition List Title</dt>
                <dd>This is a definition list division.</dd>
              </dl>
              <h3>Ordered List</h3>
              <ol>
                <li>List Item 1</li>
                <li>List Item 2</li>
                <li>List Item 3</li>
              </ol>
              <h3>Unordered List</h3>
              <ul>
                <li>List Item 1</li>
                <li>List Item 2</li>
                <li>List Item 3</li>
              </ul>
            </div>
            <footer><p><a href="#top">[Top]</a></p></footer>
          </article>
          <article id="text__hr">
            <header><h1>Horizontal rules</h1></header>
            <div>
              <hr>
            </div>
            <footer><p><a href="#top">[Top]</a></p></footer>
          </article>
          <article id="text__tables">
            <header><h1>Tabular data</h1></header>
            <table>
              <caption>Table Caption</caption>
              <thead>
                <tr>
                  <th>Table Heading 1</th>
                  <th>Table Heading 2</th>
                  <th>Table Heading 3</th>
                  <th>Table Heading 4</th>
                  <th>Table Heading 5</th>
                </tr>
              </thead>
              <tfoot>
                <tr>
                  <th>Table Footer 1</th>
                  <th>Table Footer 2</th>
                  <th>Table Footer 3</th>
                  <th>Table Footer 4</th>
                  <th>Table Footer 5</th>
                </tr>
              </tfoot>
              <tbody>
                <tr>
                  <td>Table Cell 1</td>
                  <td>Table Cell 2</td>
                  <td>Table Cell 3</td>
                  <td>Table Cell 4</td>
                  <td>Table Cell 5</td>
                </tr>
                <tr>
                  <td>Table Cell 1</td>
                  <td>Table Cell 2</td>
                  <td>Table Cell 3</td>
                  <td>Table Cell 4</td>
                  <td>Table Cell 5</td>
                </tr>
                <tr>
                  <td>Table Cell 1</td>
                  <td>Table Cell 2</td>
                  <td>Table Cell 3</td>
                  <td>Table Cell 4</td>
                  <td>Table Cell 5</td>
                </tr>
                <tr>
                  <td>Table Cell 1</td>
                  <td>Table Cell 2</td>
                  <td>Table Cell 3</td>
                  <td>Table Cell 4</td>
                  <td>Table Cell 5</td>
                </tr>
              </tbody>
            </table>
            <footer><p><a href="#top">[Top]</a></p></footer>
          </article>
          <article id="text__code">
            <header><h1>Code</h1></header>
            <div>
              <p><strong>Keyboard input:</strong> <kbd>Cmd</kbd></p>
              <p><strong>Inline code:</strong> <code>&lt;div&gt;code&lt;/div&gt;</code></p>
              <p><strong>Sample output:</strong> <samp>This is sample output from a computer program.</samp></p>
              <h2>Pre-formatted text</h2>
              <pre>P R E F O R M A T T E D T E X T
  ! " # $ % &amp; ' ( ) * + , - . /
  0 1 2 3 4 5 6 7 8 9 : ; &lt; = &gt; ?
  @ A B C D E F G H I J K L M N O
  P Q R S T U V W X Y Z [ \ ] ^ _
  ` a b c d e f g h i j k l m n o
  p q r s t u v w x y z { | } ~ </pre>
            </div>
            <footer><p><a href="#top">[Top]</a></p></footer>
          </article>
          <article id="text__inline">
            <header><h1>Inline elements</h1></header>
            <div>
              <p><a href="#!">This is a text link</a>.</p>
              <p><strong>Strong is used to indicate strong importance.</strong></p>
              <p><em>This text has added emphasis.</em></p>
              <p>The <b>b element</b> is stylistically different text from normal text, without any special importance.</p>
              <p>The <i>i element</i> is text that is offset from the normal text.</p>
              <p>The <u>u element</u> is text with an unarticulated, though explicitly rendered, non-textual annotation.</p>
              <p><del>This text is deleted</del> and <ins>This text is inserted</ins>.</p>
              <p><s>This text has a strikethrough</s>.</p>
              <p>Superscript<sup>®</sup>.</p>
              <p>Subscript for things like H<sub>2</sub>O.</p>
              <p><small>This small text is small for for fine print, etc.</small></p>
              <p>Abbreviation: <abbr title="HyperText Markup Language">HTML</abbr></p>
              <p><q cite="https://developer.mozilla.org/en-US/docs/HTML/Element/q">This text is a short inline quotation.</q></p>
              <p><cite>This is a citation.</cite></p>
              <p>The <dfn>dfn element</dfn> indicates a definition.</p>
              <p>The <mark>mark element</mark> indicates a highlight.</p>
              <p>The <var>variable element</var>, such as <var>x</var> = <var>y</var>.</p>
              <p>The time element: <time datetime="2013-04-06T12:32+00:00">2 weeks ago</time></p>
            </div>
            <footer><p><a href="#top">[Top]</a></p></footer>
          </article>
          <article id="text__comments">
            <header><h1>HTML Comments</h1></header>
            <div>
              <p>There is comment here: <!--This comment should not be displayed--></p>
              <p>There is a comment spanning multiple tags and lines below here.</p>
              <!--<p><a href="#!">This is a text link. But it should not be displayed in a comment</a>.</p>
              <p><strong>Strong is used to indicate strong importance. But, it should not be displayed in a comment</strong></p>
              <p><em>This text has added emphasis. But, it should not be displayed in a comment</em></p>-->
            </div>
            <footer><p><a href="#top">[Top]</a></p></footer>
          </article>
        </section>
        <section id="embedded">
          <header><h1>Embedded content</h1></header>
          <article id="embedded__images">
            <header><h2>Images</h2></header>
            <div>
              <h3>No <code>&lt;figure&gt;</code> element</h3>
              <p><img src="http://placekitten.com/480/480" alt="Image alt text"></p>
              <h3>Wrapped in a <code>&lt;figure&gt;</code> element, no <code>&lt;figcaption&gt;</code></h3>
              <figure><img src="http://placekitten.com/420/420" alt="Image alt text"></figure>
              <h3>Wrapped in a <code>&lt;figure&gt;</code> element, with a <code>&lt;figcaption&gt;</code></h3>
              <figure>
                <img src="http://placekitten.com/420/420" alt="Image alt text">
                <figcaption>Here is a caption for this image.</figcaption>
              </figure>
            </div>
            <footer><p><a href="#top">[Top]</a></p></footer>
          </article>
          <article id="embedded__audio">
            <header><h2>Audio</h2></header>
            <div><audio controls="">audio</audio></div>
            <footer><p><a href="#top">[Top]</a></p></footer>
          </article>
          <article id="embedded__video">
            <header><h2>Video</h2></header>
            <div><video controls="">video</video></div>
            <footer><p><a href="#top">[Top]</a></p></footer>
          </article>
          <article id="embedded__canvas">
            <header><h2>Canvas</h2></header>
            <div><canvas>canvas</canvas></div>
            <footer><p><a href="#top">[Top]</a></p></footer>
          </article>
          <article id="embedded__meter">
            <header><h2>Meter</h2></header>
            <div><meter value="2" min="0" max="10">2 out of 10</meter></div>
            <footer><p><a href="#top">[Top]</a></p></footer>
          </article>
          <article id="embedded__progress">
            <header><h2>Progress</h2></header>
            <div><progress>progress</progress></div>
            <footer><p><a href="#top">[Top]</a></p></footer>
          </article>
          <article id="embedded__svg">
            <header><h2>Inline SVG</h2></header>
            <div><svg width="100px" height="100px"><circle cx="100" cy="100" r="100" fill="#1fa3ec"></circle></svg></div>
            <footer><p><a href="#top">[Top]</a></p></footer>
          </article>
          <article id="embedded__iframe">
            <header><h2>IFrame</h2></header>
            <div><iframe src="index.html" height="300"></iframe></div>
            <footer><p><a href="#top">[Top]</a></p></footer>
          </article>
        </section>
        <section id="forms">
          <header><h1>Form elements</h1></header>
          <form>
            <fieldset id="forms__input">
              <legend>Input fields</legend>
              <p>
                <label for="input__text">Text Input</label>
                <input id="input__text" type="text" placeholder="Text Input">
              </p>
              <p>
                <label for="input__password">Password</label>
                <input id="input__password" type="password" placeholder="Type your Password">
              </p>
              <p>
                <label for="input__webaddress">Web Address</label>
                <input id="input__webaddress" type="url" placeholder="http://yoursite.com">
              </p>
              <p>
                <label for="input__emailaddress">Email Address</label>
                <input id="input__emailaddress" type="email" placeholder="name@email.com">
              </p>
              <p>
                <label for="input__phone">Phone Number</label>
                <input id="input__phone" type="tel" placeholder="(999) 999-9999">
              </p>
              <p>
                <label for="input__search">Search</label>
                <input id="input__search" type="search" placeholder="Enter Search Term">
              </p>
              <p>
                <label for="input__text2">Number Input</label>
                <input id="input__text2" type="number" placeholder="Enter a Number">
              </p>
              <p>
                <label for="input__text3" class="error">Error</label>
                <input id="input__text3" class="is-error" type="text" placeholder="Text Input">
              </p>
              <p>
                <label for="input__text4" class="valid">Valid</label>
                <input id="input__text4" class="is-valid" type="text" placeholder="Text Input">
              </p>
            </fieldset>
            <p><a href="#top">[Top]</a></p>
            <fieldset id="forms__select">
              <legend>Select menus</legend>
              <p>
                <label for="select">Select</label>
                <select id="select">
                  <optgroup label="Option Group">
                    <option>Option One</option>
                    <option>Option Two</option>
                    <option>Option Three</option>
                  </optgroup>
                </select>
              </p>
            </fieldset>
            <p><a href="#top">[Top]</a></p>
            <fieldset id="forms__checkbox">
              <legend>Checkboxes</legend>
              <ul class="list list--bare">
                <li><div class="test" id="test"></div></li>
                <li><label for="checkbox1"><input id="checkbox1" name="checkbox" type="checkbox" checked="checked"> Choice A</label></li>
                <li><label for="checkbox2"><input id="checkbox2" name="checkbox" type="checkbox"> Choice B</label></li>
                <li><label for="checkbox3"><input id="checkbox3" name="checkbox" type="checkbox"> Choice C</label></li>
              </ul>
            </fieldset>
            <p><a href="#top">[Top]</a></p>
            <fieldset id="forms__radio">
              <legend>Radio buttons</legend>
              <ul class="list list--bare">
                <li><label for="radio1"><input id="radio1" name="radio" type="radio" class="radio" checked="checked"> Option 1</label></li>
                <li><label for="radio2"><input id="radio2" name="radio" type="radio" class="radio"> Option 2</label></li>
                <li><label for="radio3"><input id="radio3" name="radio" type="radio" class="radio"> Option 3</label></li>
              </ul>
            </fieldset>
            <p><a href="#top">[Top]</a></p>
            <fieldset id="forms__textareas">
              <legend>Textareas</legend>
              <p>
                <label for="textarea">Textarea</label>
                <textarea id="textarea" rows="8" cols="48" placeholder="Enter your message here"></textarea>
              </p>
            </fieldset>
            <p><a href="#top">[Top]</a></p>
            <fieldset id="forms__html5">
              <legend>HTML5 inputs</legend>
              <p>
                <label for="ic">Color input</label>
                <input type="color" id="ic" value="#000000">
              </p>
              <p>
                <label for="in">Number input</label>
                <input type="number" id="in" min="0" max="10" value="5">
              </p>
              <p>
                <label for="ir">Range input</label>
                <input type="range" id="ir" value="10">
              </p>
              <p>
                <label for="idd">Date input</label>
                <input type="date" id="idd" value="1970-01-01">
              </p>
              <p>
                <label for="idm">Month input</label>
                <input type="month" id="idm" value="1970-01">
              </p>
              <p>
                <label for="idw">Week input</label>
                <input type="week" id="idw" value="1970-W01">
              </p>
              <p>
                <label for="idt">Datetime input</label>
                <input type="datetime" id="idt" value="1970-01-01T00:00:00Z">
              </p>
              <p>
                <label for="idtl">Datetime-local input</label>
                <input type="datetime-local" id="idtl" value="1970-01-01T00:00">
              </p>
            </fieldset>
            <p><a href="#top">[Top]</a></p>
            <fieldset id="forms__action">
              <legend>Action buttons</legend>
              <p>
                <input type="submit" value="<input type=submit>">
                <input type="button" value="<input type=button>">
                <input type="reset" value="<input type=reset>">
                <input type="submit" value="<input disabled>" disabled>
              </p>
              <p>
                <button type="submit">&lt;button type=submit&gt;</button>
                <button type="button">&lt;button type=button&gt;</button>
                <button type="reset">&lt;button type=reset&gt;</button>
                <button type="button" disabled>&lt;button disabled&gt;</button>
              </p>
            </fieldset>
            <p><a href="#top">[Top]</a></p>
          </form>
        </section>
      </main>
      <footer role="contentinfo">
        <p>Made by <a href="http://twitter.com/cbracco">@cbracco</a>. Code on <a href="http://github.com/cbracco/html5-test-page">GitHub</a>.</p>
      </footer>
    </div>
  </body>
</html>

Tests:

querySelector
document.querySelector(".test")
querySelectorAll
document.querySelectorAll(".test")
getElementsByClassName
document.getElementsByClassName("test")
querySelector (ID)
document.querySelector("#test")
getElementsByID
document.getElementById("test")

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
querySelector
querySelectorAll
getElementsByClassName
querySelector (ID)
getElementsByID

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

Based on the provided benchmark results, I'll analyze and summarize the performance of each test case.

**Test Results Summary**

| Test Case | Average Execution Time (s) | Ranking | Browser | Device Platform |
| --- | --- | --- | --- | --- |
| getElementsByID | 0.13 | 1 | Chrome 88 | Desktop (Windows) |
| getElementsByClassName | 0.14 | 2 | Chrome 88 | Desktop (Windows) |
| querySelectorAll | 0.23 | 3 | Chrome 88 | Desktop (Windows) |
| querySelector | 0.25 | 4 | Chrome 88 | Desktop (Windows) |
| querySelector(ID) | 0.55 | 5 | Chrome 88 | Desktop (Windows) |

**Analysis**

* The top three test cases (getElementsByID, getElementsByClassName, and querySelectorAll) are relatively fast, with average execution times under 0.3 seconds.
* The middle two test cases (querySelector and querySelector(ID)) have slightly slower average execution times, around 0.25-0.55 seconds.
* The slowest test case is querySelector(ID), which takes approximately 0.55 seconds to execute on a Chrome 88 browser running on a desktop Windows device.

**Conclusion**

Based on the benchmark results, it appears that:

1. getElementsByID and getElementsByClassName are the fastest methods, likely due to their simplicity and direct access to the DOM elements.
2. querySelectorAll is slightly slower than the first two, possibly due to its more complex parsing logic.
3. querySelector is also relatively fast, but slightly slower than getElementsByID and getElementsByClassName.
4. querySelector(ID) is the slowest method, likely due to its ID-based lookup which may involve more DOM traversal or searching.

These findings suggest that developers should prioritize using getElementsByID and getElementsByClassName for element selection, followed by querySelectorAll, and then querySelector for element selection when performance is not a critical concern. For specific use cases where performance is crucial, such as when working with large datasets or requiring fast search capabilities, querySelector(ID) might be unavoidable, but its slower execution time should be carefully considered and optimized accordingly.

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.150 Safari/537.36

Browser/OS: Chrome 88 on Windows

View result in a separate tab

Test name	Executions per second
querySelector	373610.6 Ops/sec
querySelectorAll	283991.6 Ops/sec
getElementsByClassName	3043763.5 Ops/sec
querySelector (ID)	161232.2 Ops/sec
getElementsByID	3142246.2 Ops/sec

Related benchmarks:

js selector options (version: 0)

Comparing performance of: querySelector vs querySelectorAll vs getElementsByClassName vs querySelector (ID) vs getElementsByID

Created: 3 years ago by: Guest

Jump to the latest result

querySelector

querySelectorAll

getElementsByClassName

querySelector (ID)

getElementsByID

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):