Benchmark: querySelectorAll vs jQuery 2

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>

<a href="#" target="_blank">asdfasfasf</a>

Tests:

jquery
// jQuery $('a[target=_blank]');
js
// Native document.querySelectorAll('a[target=_blank]');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
jquery
js

Fastest: N/A

Slowest: N/A

Latest run results:

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

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and explain what's being tested.

**Overview**

The benchmark compares two approaches: using jQuery to select elements (`jquery`) and using native JavaScript (`js`) to select elements with attributes (`target=_blank`).

**Options Compared**

Two options are compared:

1. **jQuery**: A popular JavaScript library for DOM manipulation, event handling, and other tasks.
2. **Native JavaScript**: The built-in JavaScript engine for selecting elements based on their attributes.

**Pros and Cons of Each Approach**

* **jQuery**:
	+ Pros:
		- Easier to use, especially for complex selections or operations.
		- Provides a more intuitive API compared to native JavaScript.
	+ Cons:
		- Adds an extra dependency to the project (the jQuery library).
		- May be slower than native JavaScript due to overhead from the library.
* **Native JavaScript**:
	+ Pros:
		- Faster execution, as it doesn't add additional overhead from a library.
		- More direct and efficient way to select elements based on attributes.
	+ Cons:
		- Requires more knowledge of HTML, CSS, and JavaScript syntax (e.g., `querySelectorAll`, `getAttribute`).
		- Can be more cumbersome for complex selections or operations.

**Library and Purpose**

The jQuery library is used to simplify the selection process. In this benchmark, it's used to select an anchor element (`<a>`) with a specific target attribute (`target=_blank`). This allows users to easily write test cases that exercise the `jQuery` API without worrying about the underlying implementation.

**Special JS Feature or Syntax**

In this benchmark, there is no special JavaScript feature or syntax being tested. However, it's worth noting that some versions of jQuery may have different APIs or behaviors for certain features (e.g., `$(selector)` vs. `querySelectorAll(selector)`). But in this specific case, the focus is on comparing the performance of native JavaScript selection versus jQuery.

**Alternatives**

Other alternatives to test JavaScript microbenchmarks include:

* **ES6/ES7 syntax**: Using newer JavaScript features and syntax (e.g., arrow functions, template literals) to see if they provide any performance benefits.
* **Other libraries or frameworks**: Testing other popular JavaScript libraries or frameworks (e.g., React, Angular, Vue.js) to compare their overhead and performance characteristics.
* **WebAssembly or other native compilation methods**: Compiling JavaScript code to WebAssembly or using other native compilation methods to evaluate their performance advantages.

I hope this explanation helps!

Related benchmarks:

querySelectorAll vs jQuery 2 (version: 0)

Comparing performance of: jquery vs js

Created: 5 years ago by: Registered User

Jump to the latest result

jquery

js

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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