Benchmark: getAttribute vs direct access

HTML Preparation code:

<div id="foo" bar="bar"></div>

Tests:

getAttribute
var element = document.getElementById("foo"); var i = 10000; while (i--) { var foo = element.getAttribute("bar"); }
direct access
var element = document.getElementById("foo"); var i = 10000; while (i--) { var foo = element.bar; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
getAttribute
direct access

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36

Browser/OS: Chrome 124 on Android

View result in a separate tab

Test name	Executions per second
getAttribute	2959.4 Ops/sec
direct access	192333.8 Ops/sec

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 its results.

**Benchmark Overview**

The provided benchmark compares two approaches for accessing an attribute in HTML element:

1. **Direct access**: Accessing the `bar` attribute directly using dot notation (`element.bar`).
2. **getAttribute**: Using the `getAttribute()` method to retrieve the value of the `bar` attribute.

**Options Compared**

Two options are being compared:

* Direct access (using dot notation)
* getAttribute() method

**Pros and Cons of Each Approach**

1. **Direct Access**
	* Pros:
		+ Faster, as it doesn't require a function call or DOM traversal.
		+ May be more efficient in terms of memory usage.
	* Cons:
		+ Can lead to security vulnerabilities if the attribute is set using user input.
		+ May not work correctly if the element's `bar` property is set dynamically or by another script.
2. **getAttribute() Method**
	* Pros:
		+ Provides a safer and more reliable way to access attributes, as it prevents cross-site scripting (XSS) attacks.
		+ Works correctly even if the attribute is set dynamically or by another script.
	* Cons:
		+ Slower than direct access due to the function call and DOM traversal.
		+ May consume more memory resources.

**Library and Special JS Features**

There are no libraries used in this benchmark. The `getAttribute()` method is a built-in JavaScript API for accessing attribute values.

**Special JS Features (None)**

There are no special JS features or syntax used in this benchmark.

**Other Alternatives**

If you wanted to compare the performance of other approaches, such as:

* Using a library like jQuery to access attributes
* Using a more advanced DOM manipulation method, like `Element.prototype.getAttribute()` with a getter function

However, these alternatives would likely introduce additional complexity and may not provide a straightforward comparison.

**Benchmark Preparation Code**

The benchmark preparation code is empty (`"Script Preparation Code": null`), which means that the script to be executed for each test case is generated by MeasureThat.net or another tool. The HTML preparation code (`"<div id=\"foo\" bar=\"bar\"></div>"`) creates a simple HTML element with an attribute `bar`.

Related benchmarks:

getAttribute vs direct access (version: 0)

comparing : getAttribute vs direct access

Comparing performance of: getAttribute vs direct access

Created: 3 years ago by: Guest

Jump to the latest result

getAttribute

direct access

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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