Benchmark: js Styles css text

HTML Preparation code:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script>
    var $jq331 = $.noConflict(true);
</script>

<div id="box" style="background:#555;color:#FFF;position:absolute;left:0;top:0;width:400px;height:100px;</div>

Script Preparation code:

var elem = document.getElementById('box');
console.log("elem", elem);

console.log("jq", $jq331);
var jqElem = $jq331('#box')
console.log("jqElem", jqElem);

Tests:

cssText
elem.style.cssText +=';width:300px;height:50px;';
style
elem.style.width = '300px'; elem.style.height = '50px'; elem.style.top = '40px'; elem.style.left = '90px';
jquery
jqElem.css({ 'width': 300, 'height': 50, 'top':40, 'left': 90 });

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
cssText
style
jquery

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

This benchmark does not have any results yet. Be the first one to run it!

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

LLMs can make mistakes. Check important info.

Let's dive into the world of JavaScript microbenchmarks on MeasureThat.net!

**Benchmark Definition JSON**

The provided JSON represents a benchmark definition, which consists of:

1. **Script Preparation Code**: This code is executed once to prepare the environment for the benchmark. In this case, it creates a reference to an HTML element with the id "box" and initializes a jQuery variable `$jq331` by calling `$.noConflict(true)`. The script also logs some console messages for debugging purposes.
2. **Html Preparation Code**: This code is executed once to prepare the HTML environment for the benchmark. It includes a link to the latest version of jQuery (3.3.1) and defines an HTML element with the id "box" containing a style attribute.

**Individual Test Cases**

There are three test cases in this benchmark:

1. **cssText**: This test case compares the performance of setting the `style.cssText` property directly on the DOM element (`elem.style.cssText +=';width:300px;height:50px;';`) versus not modifying the property at all (i.e., just reading it, which is expected to be faster).
2. **style**: This test case compares the performance of setting multiple CSS properties on the DOM element (`elem.style.width = '300px';\r\nelem.style.height = '50px';\r\nelem.style.top = '40px';\r\nelem.style.left = '90px';`) versus using the `css()` method provided by jQuery (`jqElem.css({ 'width': 300, 'height': 50, 'top':40, 'left': 90 });`).
3. **jquery**: This test case compares the performance of using jQuery's `css()` method to set multiple CSS properties on the DOM element versus not using any library at all.

**Options Compared**

The benchmark tests different approaches:

* Directly modifying CSS properties (CSSOM) vs. using a library (jQuery)
* Setting multiple CSS properties vs. setting individual properties
* Using `style.cssText` property (CSSOM) vs. reading its value and concatenating new styles (CSSOM)

**Pros and Cons of Different Approaches**

1. **Directly modifying CSS properties (CSSOM)**:
	* Pros: Faster, as it avoids the overhead of a library.
	* Cons: May not support more complex styles or animations.
2. **Using a library (jQuery)**:
	* Pros: More flexible, supports more advanced styling and animation features.
	* Cons: Slower due to the added overhead of the library.

**Library Used**

In this benchmark, jQuery is used as a library for setting CSS properties on the DOM element (`jqElem.css({ 'width': 300, 'height': 50, 'top':40, 'left': 90 });`). The `$.noConflict(true)` call is used to avoid conflicts with other libraries.

**Special JavaScript Feature or Syntax**

None mentioned in this benchmark.

**Other Alternatives**

If you're interested in exploring alternative methods for setting CSS properties, consider:

1. **CSSOM**: Using the DOM's built-in `style` property to modify CSS styles.
2. **DOM Manipulation Libraries**: Other libraries like React or Angular provide their own APIs for manipulating the DOM and styling elements.

These alternatives can offer different trade-offs in terms of performance, flexibility, and feature set.

Related benchmarks:

js Styles css text (version: 0)

Comparing performance of: cssText vs style vs jquery

Created: 5 years ago by: Guest

Jump to the latest result

cssText

style

jquery

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):