Benchmark: jQuery by id vs Document.getElementById2

HTML Preparation code:

<script type="text/javascript" src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-3.6.0.min.js"></script>
<div id="testElement"></div>

Tests:

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

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
jQuery
Vanilla 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):

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Let's break down the provided benchmark definition and test cases to understand what is being tested.

**Benchmark Definition**

The benchmark measures the speed of getting an element by ID using two approaches: jQuery (specifically, `$(` element `)` syntax) and Vanilla JavaScript (`document.getElementById()`).

**Script Preparation Code**

In this case, there is no script preparation code provided. The script that will be executed for each test case comes from the benchmark definition itself.

**Html Preparation Code**

The HTML preparation code includes a link to include the jQuery library (version 3.6.0) and creates a `<div>` element with an ID of "testElement". This element will serve as the target for testing.

**Individual Test Cases**

There are two test cases:

1. **jQuery**: The benchmark definition uses the jQuery syntax to get the `#testElement` element, assigning it to the variable `el`. It then extracts the `className` property from the element.
2. **Vanilla JS**: The benchmark definition uses the Vanilla JavaScript syntax (`document.getElementById()` function) to get the same `#testElement` element, assigning it to the variable `el`. It then extracts the `className` property from the element.

**Library and Purpose**

The library used in this benchmark is jQuery, a popular JavaScript library for DOM manipulation. The primary purpose of jQuery is to simplify DOM interactions, providing an easy-to-use API for selecting and manipulating elements on a web page.

**Pros and Cons**

Here are some pros and cons of each approach:

* **jQuery**: Pros:
	+ Easier to use, especially for developers new to JavaScript or DOM manipulation.
	+ Provides a more intuitive API for common tasks like element selection and manipulation.
*   Cons:
    *   Can be slower due to the overhead of jQuery's internal mechanisms.
    + May not optimize well for performance-critical applications.

Pros:
*   Faster execution
*   Lighter library
*   More control over DOM interactions

Cons:
  - Steeper learning curve
  - Less intuitive API compared to jQuery
* **Vanilla JS**: Pros:
	+ Optimized for performance and minimal overhead.
	+ Provides direct access to the DOM, allowing for more control and fine-grained manipulation.

Cons:
  - Requires more knowledge of JavaScript and DOM manipulation.
  + Can be error-prone if not used correctly.

**Special Features or Syntax**

This benchmark does not explicitly use any special features or syntax. However, it's worth noting that some versions of jQuery (like v3.x) have undergone significant changes in their API compared to earlier versions (like v1.x). If you were to modify the benchmark to test a specific version of jQuery or its behavior with certain syntax, those would be factors to consider.

**Alternatives**

Some alternatives for measuring DOM performance might include:

*   **Benchmarking frameworks**: Tools like BenchmarkJS or jsperf allow you to write and run custom benchmarks in JavaScript.
*   **Web performance optimization libraries**: Libraries like Webpack, Rollup, or Preact provide optimized builds of modern web applications that can be used as test cases.
*   **JavaScript performance benchmark suites**: Suite-like tools for testing specific performance aspects of JavaScript implementations.

Related benchmarks:

jQuery by id vs Document.getElementById2 (version: 0)

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

Comparing performance of: jQuery vs Vanilla JS

Created: 4 years ago by: Guest

Jump to the latest result

jQuery

Vanilla 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):