Benchmark: jQuery VS querySelectorAll (teste)

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>
<div id='teste'>teste 1</div>
<div id='teste'>teste 2</div>
<div id='teste'>teste 3</div>
<div id='teste'>teste 4</div>
<div id='teste'>teste 5</div>
<div id='teste'>teste 6</div>
<div id='teste'>teste 7</div>
<div id='teste'>teste 8</div>
<div id='teste'>teste 9</div>

Tests:

querySelectorAll
document.querySelectorAll('.teste')
jQuery
jQuery('.teste')

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
querySelectorAll
jQuery

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Linux; Android 12; SM-N970F) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Mobile Safari/537.36

Browser/OS: Chrome Mobile 109 on Android

View result in a separate tab

Test name	Executions per second
querySelectorAll	627126.1 Ops/sec
jQuery	374695.7 Ops/sec

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

LLMs can make mistakes. Check important info.

I'll break down the provided JSON data and explain what's being tested, compared options, pros and cons, library usage, special JS features, and alternative approaches.

**Benchmark Definition**

The benchmark definition is a single test case that uses both `querySelectorAll` and jQuery to select elements with the class `teste`. The goal is to compare the performance of these two approaches in different browsers.

**Options Compared**

Two options are being compared:

1. **querySelectorAll**: A native JavaScript method that selects all elements with a given CSS selector.
2. **jQuery**: A popular JavaScript library that provides an API for selecting and manipulating DOM elements.

**Pros and Cons of Each Approach**

* `querySelectorAll`:
	+ Pros:
		- Native support in most browsers, making it more compatible.
		- Typically faster since it doesn't require additional overhead from a library.
		- Can be used with other JavaScript methods to chain together complex queries.
	+ Cons:
		- May not work as expected in older browsers or those with specific CSS filters enabled.
		- Requires knowledge of CSS selectors, which can be complex and time-consuming to learn.
* `jQuery`:
	+ Pros:
		- Widely supported across most modern browsers.
		- Provides a simple and intuitive API for selecting elements.
		- Often used in conjunction with other jQuery methods, making it a popular choice for developers.
	+ Cons:
		- Adds extra overhead due to the library itself, which can impact performance.
		- May require additional setup or configuration, such as including the library and handling conflicts.

**Library Usage**

In this benchmark, jQuery is used to select elements with the class `teste`. The exact code used is not specified in the JSON data, but it would typically look like `jQuery('.teste')`.

**Special JS Feature/Syntax**

There are no special JavaScript features or syntax being tested in this benchmark. However, it's worth noting that some browsers may have specific optimizations or quirks when it comes to CSS selectors, which could affect performance.

**Alternative Approaches**

Other approaches for selecting elements with a given class include:

1. `document.getElementsByClassName('teste')`: A native method that returns an HTMLCollection of elements.
2. `Array.prototype.filter()`: Using the Array.prototype's filter method to select elements based on their class attribute.
3. Custom CSS selectors or other libraries like Sizzle.js.

These alternatives may have varying degrees of performance and compatibility across different browsers, so they might not be suitable for all use cases.

Keep in mind that this benchmark is designed to compare the performance of two specific approaches ( `querySelectorAll` and jQuery ) rather than exploring all possible alternatives.

Related benchmarks:

jQuery VS querySelectorAll (teste) (version: 0)

Comparing performance of: querySelectorAll vs jQuery

Created: one year ago by: Guest

Jump to the latest result

querySelectorAll

jQuery

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):