Benchmark: querySelectorAll vs JQuery

querySelectorAll vs JQuery (version: 2)

Compares the performance of querySelectorAll against JQuery for selecting elements. For class selector, getElementsByClassName is the best. For element selector, getElementsByTagName is the best.

Comparing performance of: querySelectorAll by Attribute vs jQuery selector by Attribute vs querySelectorAll by Class vs jQuery selector by Class vs querySelectorAll by Element vs jQuery selector by Element

Created: 6 years ago by: Registered User

Jump to the latest result

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>
<content id="demo">Hello World!</content>

Script Preparation code:

let components = '';
for (let i=0; i<10000; i+=1) {
    components += '<div class="component" data-component="component' + i + '">Content ' + i + '</div>'
}
document.getElementById("demo").innerHTML = components;

Tests:

querySelectorAll by Attribute
let components = document.querySelectorAll('[data-component]');
jQuery selector by Attribute
let components = $('[data-component]');
querySelectorAll by Class
let components = document.querySelectorAll('.component');
jQuery selector by Class
let components = $('.component');
querySelectorAll by Element
let components = document.querySelectorAll('div');
jQuery selector by Element
let components = $('div');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
querySelectorAll by Attribute
jQuery selector by Attribute
querySelectorAll by Class
jQuery selector by Class
querySelectorAll by Element
jQuery selector by Element

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 28 days ago):

LLMs can make mistakes. Check important info.

I'll provide an explanation of the benchmark, its options, pros and cons, library usage, special JS features or syntax, and alternatives.

**Benchmark Overview**

The provided benchmark compares the performance of two approaches: `querySelectorAll` (native JavaScript) and jQuery selectors (`$()`). The test creates a large HTML document with 10,000 elements and tests the performance of both approaches in selecting different types of elements (by attribute, class, and element).

**Options Compared**

1. **Native `querySelectorAll`**: This approach uses the native JavaScript method to select elements based on a CSS selector.
2. **jQuery selectors (`$()`)**: This approach uses jQuery's selector engine to select elements.

**Pros and Cons of Each Approach**

**Native `querySelectorAll`**:

Pros:

* Native implementation, which is generally faster than third-party libraries.
* More control over the selection process.

Cons:

* Requires a CSS-like syntax for selectors, which can be complex.
* Limited support for certain advanced CSS features (e.g., pseudo-classes).

**jQuery selectors (`$()`)**

Pros:

* Easier to read and write CSS-like selectors.
* Supports more advanced CSS features (e.g., pseudo-classes).
* More efficient in some cases due to jQuery's internal optimizations.

Cons:

* Third-party library, which adds overhead and may not be compatible with all browsers.
* Less control over the selection process.

**Library Usage**

In this benchmark, jQuery is used as the external library. The `script` tag includes the jQuery library, and the `$()` function is used to select elements.

**Special JS Features or Syntax**

None mentioned in this benchmark.

**Other Considerations**

When choosing between native `querySelectorAll` and jQuery selectors, consider the trade-off between ease of use (jQuery) and performance (native implementation). If you need more control over the selection process, native `querySelectorAll` might be a better choice. However, if readability and ease of use are more important, jQuery selectors could be a better option.

**Alternatives**

Other alternatives to compare include:

1. **Sizzle**: Another popular CSS selector engine that can be used in place of jQuery.
2. **CSSOM**: The Document Object Model (DOM) API provides a native way to select elements using CSS selectors.
3. **QuerySelector API**: A newer JavaScript API for selecting elements based on CSS selectors.

These alternatives might offer different performance profiles, ease of use, or feature sets compared to native `querySelectorAll` and jQuery selectors.

Latest run results:

Run details: (Test run date: 2 days ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:133.0) Gecko/20100101 Firefox/133.0

Browser/OS: Firefox 133 on Windows

View result in a separate tab

Test name	Executions per second
querySelectorAll by Attribute	1646.3 Ops/sec
jQuery selector by Attribute	1094.3 Ops/sec
querySelectorAll by Class	1956.0 Ops/sec
jQuery selector by Class	2904.8 Ops/sec
querySelectorAll by Element	2060.9 Ops/sec
jQuery selector by Element	2013.0 Ops/sec

Related benchmarks:

querySelectorAll vs JQuery (version: 2)

Compares the performance of querySelectorAll against JQuery for selecting elements. For class selector, getElementsByClassName is the best. For element selector, getElementsByTagName is the best.

Comparing performance of: querySelectorAll by Attribute vs jQuery selector by Attribute vs querySelectorAll by Class vs jQuery selector by Class vs querySelectorAll by Element vs jQuery selector by Element

Created: 6 years ago by: Registered User

Jump to the latest result

querySelectorAll by Attribute

jQuery selector by Attribute

querySelectorAll by Class

jQuery selector by Class

querySelectorAll by Element

jQuery selector by Element

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 28 days ago):