Benchmark: 6 properties - style.setProperty vs attributeStyleMap.set

HTML Preparation code:

<div id="test"></div>

Script Preparation code:

el = document.getElementById("test");

Tests:

style.setProperty
let i = 0; while (i < 10000) { el.style.setProperty("color","red"); el.style.setProperty("border","1vmin solid red"); el.style.setProperty("padding","0.5vmin"); el.style.setProperty("background-color","black"); el.style.setProperty("height","1vh"); el.style.setProperty("width","1vw"); i++; }
attributeStyleMap.set
let i = 0; while (i < 10000) { el.attributeStyleMap.set("color","red"); el.attributeStyleMap.set("border","1vmin solid red"); el.attributeStyleMap.set("padding","0.5vmin"); el.attributeStyleMap.set("background-color","black"); el.attributeStyleMap.set("height","1vh"); el.attributeStyleMap.set("width","1vw"); i++; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
style.setProperty
attributeStyleMap.set

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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**Benchmark Definition**

The provided JSON represents a benchmark that compares two approaches for setting CSS styles on an HTML element: `style.setProperty` and `attributeStyleMap.set`. These methods are used to set properties on an element, such as its style, background color, padding, border, height, and width.

**Options Compared**

Two options are being compared:

1. **`style.setProperty`**: This method sets a CSS property directly on the element's style object.
2. **`attributeStyleMap.set`**: This method adds an attribute to the element's `style` attribute, which contains a map of values for various CSS properties.

**Pros and Cons**

Here are some pros and cons of each approach:

* `style.setProperty`:
	+ Pros:
		- Fast and efficient
		- No overhead from adding attributes
	+ Cons:
		- Can be slower due to the browser's style calculation process (known as "reflow")
		- May not work with all CSS properties (e.g., gradient colors)
* `attributeStyleMap.set`:
	+ Pros:
		- Often faster than `style.setProperty`
		- Works with more CSS properties
	+ Cons:
		- Adds an attribute to the element's `style` attribute, which can impact SEO and accessibility
		- May be slower due to the browser's parsing process

**Library Used**

In this benchmark, no specific library is used. However, the `attributeStyleMap` object is a built-in feature of HTML5, introduced in the CSSOM (CSS Object Model).

**Special JavaScript Feature or Syntax**

There is no special JavaScript feature or syntax being tested in this benchmark. The focus is on comparing two established methods for setting CSS styles.

**Other Alternatives**

If you need to set CSS styles on an element, other alternatives to `style.setProperty` and `attributeStyleMap.set` include:

1. **`document.documentElement.style`**: This method sets a CSS property directly on the document's root element.
2. **`element.getAttribute('style')` and `element.setAttribute('style', 'value')`**: These methods allow you to set a CSS property by adding an attribute to the element's `style` attribute, but this is not as efficient as using `style.setProperty` or `attributeStyleMap.set`.

In conclusion, when choosing between `style.setProperty` and `attributeStyleMap.set`, consider your specific use case and performance requirements. If you need speed and can work with most CSS properties, `style.setProperty` might be the better choice. However, if you prioritize flexibility and compatibility with all CSS properties, `attributeStyleMap.set` could be a better option.

Related benchmarks:

6 properties - style.setProperty vs attributeStyleMap.set (version: 0)

Comparing performance of: style.setProperty vs attributeStyleMap.set

Created: 4 years ago by: Guest

Jump to the latest result

style.setProperty

attributeStyleMap.set

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):