Benchmark: jQuery vs getElementById vs querySelector vs $(getElementById) jquery 3.6.3

HTML Preparation code:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.3/jquery.min.js"></script>
<div id="testElement" class="test class list classes"></div>

Tests:

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

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
jQuery
getElementById
querySelector
$(getElementById)

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.0.0 Safari/537.36

Browser/OS: Chrome 111 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
jQuery	4639122.0 Ops/sec
getElementById	10660162.0 Ops/sec
querySelector	2877241.5 Ops/sec
$(getElementById)	4340357.5 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's dive into the explanation of what's being tested in this benchmark.

**Benchmark Purpose**

The goal of this benchmark is to compare the performance of three different approaches for retrieving an HTML element by its ID:

1. jQuery (using `$(` and `)` syntax)
2. Vanilla JavaScript (using `document.getElementById()` function)
3. Vanilla JavaScript (using `document.querySelector()` function)

Additionally, a variation of jQuery (`$(document.getElementById('testElement'))`) is also included in the benchmark.

**Options Compared**

Here's what's being compared:

* jQuery: using the `$` symbol and its shorthand for `document.getElementById()`, `querySelectorAll()`, etc.
* Vanilla JavaScript:
	+ `document.getElementById()` function
	+ `document.querySelector()` function

The comparison is done between these two approaches, with each approach having a variation that uses jQuery's syntax.

**Pros and Cons of Each Approach**

Here are some pros and cons for each approach:

* **jQuery**
	+ Pros: More concise and readable code; less error-prone due to its strict syntax; well-optimized library.
	+ Cons: Adds an extra dependency (the jQuery library), which may not be desirable in all projects. Also, it uses a proprietary DOM manipulation system that can lead to compatibility issues with older browsers or specific use cases.
* **Vanilla JavaScript (document.getElementById())**
	+ Pros: Lightweight and doesn't add any dependencies; more straightforward and compatible with older browsers.
	+ Cons: Requires manual string manipulation and parsing of the selector, which can be error-prone; slower performance compared to jQuery.
* **Vanilla JavaScript (document.querySelector())**
	+ Pros: More flexible than `document.getElementById()` due to its CSS-like syntax; supports modern features like attribute selectors.
	+ Cons: Less widely supported by older browsers; requires manual string manipulation and parsing of the selector, which can be error-prone.

**Library Used in Test Cases**

In this benchmark, jQuery is used as a library, specifically version 3.6.3. The `$(` and `)` symbols are used to access its methods, such as `getElementById()`.

**Special JavaScript Feature or Syntax**

There's no special JavaScript feature or syntax being tested in this benchmark. All the approaches use standard JavaScript features and syntax.

**Other Alternatives**

If you're interested in alternative approaches for retrieving elements by ID, some options include:

* Using CSS selectors with DOM methods like `getElementById()` or `querySelector()`
* Utilizing libraries like React or Angular, which provide their own element retrieval mechanisms
* Implementing a custom element retrieval mechanism using template literals or other modern JavaScript features

Related benchmarks:

jQuery vs getElementById vs querySelector vs $(getElementById) jquery 3.6.3 (version: 0)

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

Comparing performance of: jQuery vs getElementById vs querySelector vs $(getElementById)

Created: one year ago by: Guest

Jump to the latest result

jQuery

getElementById

querySelector

$(getElementById)

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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