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CssText vs Styling
(version: 0)
Comparing performance of:
csstext vs styling
Created:
6 years ago
by:
Guest
Go to the latest result
HTML Preparation code:
<div id="myid">hi</div>
Script Preparation code:
var a = document.getElementById("myid"); a.style.position = "absolute";
Tests:
csstext
a.style.cssText += "left: 100px ;top: 100px; width: 100px; height: 100px";
styling
a.style.left = "100px" a.style.top = "100px" a.style.width = "100px" a.style.height = "100px"
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
csstext
styling
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
5 months ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
Browser/OS:
Chrome 145 on Windows
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=625997" width="100%" height="500px"></iframe>
styling
3.0M/s
csstext
421K/s
View exact numbers
Test name
Executions per second
✓
styling
2,994,668 Ops/sec
csstext
421,404 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided JSON data and explain what is tested, compared, and their pros and cons. **Benchmark Definition** The benchmark definition represents two different ways to set CSS styles for an HTML element using JavaScript. The first approach uses the `cssText` property, while the second approach uses individual property setters (e.g., `style.left`, `style.top`, etc.). **Options Compared** Two options are compared: 1. **CssText**: This approach sets the entire CSS style as a single string using the `cssText` property. The resulting string is "left: 100px; top: 100px; width: 100px; height: 100px". 2. **Styling**: This approach sets individual properties using separate property setters (e.g., `style.left`, `style.top`, etc.). **Pros and Cons** **CssText Approach** Pros: * May be faster since it only involves a single string operation. * Can be more efficient in terms of memory allocation, as the entire style is set at once. Cons: * May lead to performance issues if the CSS styles are complex or have many rules. * Can be less readable and maintainable, as the entire style is concatenated into a single string. **Styling Approach** Pros: * Is more explicit and readable, as each property is set individually. * Can be more maintainable, as individual properties can be modified or updated independently. Cons: * May be slower due to the overhead of setting individual properties. * Requires more memory allocation, as each property setter needs to allocate space for a new value. **Other Considerations** * **Browser Performance**: The performance difference between these two approaches may vary depending on the browser and its implementation. Some browsers might optimize the `cssText` approach, while others might favor the individual property setters. * **Maintenance and Readability**: As mentioned earlier, the styling approach is more explicit and readable, making it easier to maintain and understand. **Library Used** None is explicitly mentioned in the provided JSON data. However, some libraries (e.g., jQuery) may provide additional ways to set CSS styles or manipulate DOM elements that could impact performance. **Special JS Feature/Syntax** The `cssText` property is a standard JavaScript property for setting CSS styles as a string. The individual property setters (e.g., `style.left`, `style.top`) are also standard, but they may have different behavior depending on the browser and its implementation. **Alternatives** Other approaches to set CSS styles or manipulate DOM elements might include: * Using the Web API's `DOMStringManipulation` APIs, such as `DOMStringIterator` or `DOMStringRange`. * Leveraging CSS-in-JS solutions like styled-components, emotion, or glams. * Utilizing libraries like jQuery or React that provide additional ways to set CSS styles or manipulate DOM elements. These alternatives might offer different performance characteristics, maintainability, and readability benefits, depending on the specific use case.
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