Benchmark: jQuery query vs vanilla query

HTML Preparation code:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<div id="el"></div>

Tests:

JS getElementById
document.getElementById('el');
jQuery query
$("#el")
JS query
document.querySelector('#el');
JS query all
document.querySelectorAll('#el');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
JS getElementById
jQuery query
JS query
JS query all

Fastest: N/A

Slowest: N/A

Latest run results:

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Autogenerated LLM Summary (model llama3.1:latest, generated one year ago):

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Let's dive into the details of this benchmark.

**What is being tested?**

This benchmark compares the performance of different ways to select an HTML element using JavaScript. Specifically, it tests four approaches:

1. Using `document.getElementById('el')`
2. Using jQuery's `$` function with the selector `$('#el')`
3. Using `document.querySelector('#el')`
4. Using `document.querySelectorAll('#el')`

**What are the options compared?**

The main difference between these options is how they select an HTML element:

* `document.getElementById('el')`: This method uses a built-in JavaScript function to find an element by its ID.
* jQuery's `$` function with `$('#el')`: This uses the popular jQuery library to select an element using a CSS selector.
* `document.querySelector('#el')`: This is another built-in JavaScript function (introduced in ECMAScript 5) that selects an element using a CSS selector.
* `document.querySelectorAll('#el')`: This method returns all elements matching the given CSS selector.

**Pros and cons of each approach**

Here are some key points to consider:

* **Vanilla JavaScript (getElementById, querySelector)**: These methods are built-in and don't require any external libraries. They're also relatively simple and easy to understand.
	+ Pros: No dependency on jQuery; good performance in most cases.
	+ Cons: Limited functionality compared to other options; may not work with some older browsers or frameworks.
* **jQuery ($, $all)**: This is a popular library that provides a lot of useful features for working with HTML and JavaScript. Its selectors are more powerful than vanilla JavaScript's.
	+ Pros: Powerful selectors, easy to use, and well-maintained library.
	+ Cons: Requires jQuery to be included in the project; may have performance issues with large datasets.

**Other considerations**

* **Browser support**: The benchmark results show that all four methods work on Chrome 99. However, it's essential to ensure that your chosen method works across various browsers and versions.
* **Performance**: As shown by the benchmark results, `document.getElementById` is generally faster than jQuery's `$` function or `document.querySelector`. However, this may not be true for larger datasets or more complex queries.

**What library is used in this test?**

In this case, the library used is jQuery (version 3.2.1). The script includes a reference to the jQuery library from Google's CDN.

**Special JavaScript feature or syntax?**

No special features or syntax are used in this benchmark beyond what's mentioned above.

**Alternatives**

If you're looking for alternatives to these methods, consider:

* **Vanilla JavaScript (e.g., `document.querySelector`)**: Use the built-in `querySelector` function for simple queries.
* **Other libraries (e.g., Sizzle, Selector)**: If you need more advanced selector functionality, explore other libraries that provide it.
* **Native browser APIs**: Depending on your specific use case, you might be able to leverage native browser APIs (like querySelector) directly.

Related benchmarks:

jQuery query vs vanilla query (version: 1)

Compare vanilla JS querying to jQuery querying

Comparing performance of: JS getElementById vs jQuery query vs JS query vs JS query all

Created: 4 years ago by: Registered User

Jump to the latest result

JS getElementById

jQuery query

JS query

JS query all

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

Autogenerated LLM Summary (model llama3.1:latest, generated one year ago):