Benchmark: jQuery by id vs Document.getElementById

HTML Preparation code:

<script type="text/javascript" src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-3.1.0.min.js"></script>
<div id="testElement"></div>
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>

Tests:

jQuery
var el = $("#testElement")[0]; var className = el.className;
Vanilla JS
var el = document.getElementById('testElement'); var className = el.className;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
jQuery
Vanilla JS

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

Let's break down the provided JSON data and explain what's being tested, compared, and other considerations.

**Benchmark Definition**

The benchmark definition is comparing the speed of getting an element by its `id` using two approaches:

1. **jQuery**: Using jQuery to select the element by its `id`.
2. **Vanilla JS**: Using vanilla JavaScript (i.e., no libraries) to select the element by its `id`.

**Script Preparation Code**

The script preparation code includes links to external libraries:

* jQuery (version 3.1.0)
* jQuery (version 3.3.1)

These libraries are used to enable the jQuery functions in the benchmark.

**Html Preparation Code**

The HTML preparation code creates a simple web page with an `id`-containing element (`<div id="testElement"></div>`). This element will be used for the benchmark.

**Individual Test Cases**

There are two individual test cases:

1. **jQuery**: The first test case uses jQuery to select the element by its `id`, and then extracts the value of the `className` property.
2. **Vanilla JS**: The second test case uses vanilla JavaScript (without any libraries) to select the element by its `id`, and then extracts the value of the `className` property.

**Library: jQuery**

jQuery is a popular JavaScript library that provides an easy way to manipulate HTML documents, select elements, and handle events. In this benchmark, jQuery is used to simplify the process of selecting elements by their `id`. The `$(#testElement)[0]` syntax selects the first element with the `id` "testElement" and returns it as a plain JavaScript object.

**Pros and Cons**

Here are some pros and cons of each approach:

* **jQuery**:
	+ Pros: Easy to use, fast execution time.
	+ Cons: Adds extra library overhead, may not be suitable for all projects.
* **Vanilla JS**:
	+ Pros: Lightweight, no library dependencies, more control over code execution.
	+ Cons: Requires manual DOM manipulation, potentially slower execution times.

**Other Considerations**

When comparing these two approaches, it's essential to consider the following:

* Browser support: Both jQuery and vanilla JavaScript are widely supported by modern browsers.
* Performance impact: Depending on the size of the project and the number of elements being manipulated, vanilla JavaScript may be slightly slower than jQuery.
* Code complexity: Vanilla JavaScript requires more manual DOM manipulation, which can lead to longer code execution times.

**Other Alternatives**

If you're looking for alternatives to jQuery or want to explore other options, consider the following:

* Lodash (a utility library that provides functions like `get` and `map`, similar to jQuery's `$(#testElement)[0]`)
* Vanilla JavaScript libraries like React or Vue.js (which provide their own selectors and DOM manipulation APIs)
* Other custom solutions using plain JavaScript or modern JavaScript features like `document.querySelector()`

Latest run results:

Run details: (Test run date: 5 years ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.103 Safari/537.36 OPR/60.0.3255.170

Browser/OS: Opera 60 on Linux

View result in a separate tab

Test name	Executions per second
jQuery	830950.0 Ops/sec
Vanilla JS	2061899.4 Ops/sec

Related benchmarks:

jQuery by id vs Document.getElementById (version: 0)

Comparing speed of getting element by id with jQuery vs Vanilla JS

Comparing performance of: jQuery vs Vanilla JS

Created: 5 years ago by: Guest

Jump to the latest result

jQuery

Vanilla JS

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):