Benchmark: Dataset vs getAttribute vs Property v2.1

HTML Preparation code:

<h3 id="data" data-test="text" data-id="some-id">Hello world!</h3>

Script Preparation code:

var element = document.querySelector("#data");

Tests:

Dataset
const { test, id } = element.dataset; const testId = test + id;
getAttribute
const test = element.getAttribute('data-test'); const id = element.getAttribute('data-id'); const testId = test + id;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Dataset
getAttribute

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 8 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 YaBrowser/24.7.0.0 Safari/537.36

Browser/OS: Yandex Browser 24 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Dataset	1825425.8 Ops/sec
getAttribute	3761129.5 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):

LLMs can make mistakes. Check important info.

Let's break down the provided JSON and benchmark setup to understand what's being tested.

**Benchmark Definition**

The benchmark is designed to compare three approaches for accessing data attributes in JavaScript:

1. `dataset` property (using the `const { test, id } = element.dataset;` syntax)
2. `getAttribute` method (using the `element.getAttribute('data-test')` and `element.getAttribute('data-id')` syntaxes)

**Options Being Compared**

The two options being compared are:

* Using the `dataset` property (`test` and `id` accessors) to access data attributes
* Using the `getAttribute` method to access data attributes (by their attribute name)

**Pros and Cons of Each Approach**

1. **Dataset Property**
	* Pros:
		+ More readable and concise syntax
		+ Accesses data attributes directly, without needing an attribute name
		+ Typically faster than `getAttribute`
	* Cons:
		+ Limited to accessing data attributes that are defined using the `data-` prefix (e.g., `data-test`, `data-id`)
2. **getAttribute Method**
	* Pros:
		+ More flexible, as it can access any attribute without a specific prefix
		+ Works with attributes that don't have a `data-` prefix
	* Cons:
		+ Less readable and more verbose syntax
		+ Typically slower than accessing data attributes directly using the `dataset` property

**Library Used**

The benchmark doesn't explicitly mention any libraries, but it does use HTML and CSS to create an element with a `data-test` attribute. However, the `dataset` property access is specific to modern browsers (Chrome 80+, Firefox 69+), which may not be compatible with older versions.

**Special JS Feature or Syntax**

The benchmark uses ES6 syntax features, such as:

* Template literals (`const { test, id } = element.dataset;`)
* Destructuring assignment (`const { test, id } = element.dataset;`)

These features are widely supported in modern browsers and Node.js environments.

**Alternative Approaches**

Other approaches to accessing data attributes could include:

1. Using a library like jQuery or Lodash to access data attributes
2. Defining custom getter functions for the `element` object to access data attributes
3. Using a different attribute name or prefix (e.g., `_data-test_`)

Related benchmarks:

Dataset vs getAttribute vs Property v2.1 (version: 0)

Comparing performance of: Dataset vs getAttribute

Created: 2 years ago by: Guest

Jump to the latest result

Dataset

getAttribute

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):