Benchmark: visibility vs display

HTML Preparation code:

<style>
  d{display:none;}
  v{visibility:hidden;}
</style>
<div class="dd d">Lorem Ipsum</div>
<div class="vv v">Lorem Ipsum</div>
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>

Tests:

display
$("dd").toggleClass("d");
visibility
$("vv").toggleClass("v");

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
display
visibility

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

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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.

**What is tested?**

The provided JSON represents two benchmark test cases: "display" and "visibility". The tests are designed to measure the performance difference between using the `display` CSS property versus the `visibility` CSS property on an HTML element. Specifically, they toggle the classes `d` and `v` on elements with IDs `dd` and `vv`, respectively.

**Options compared**

There are two options being compared:

1. **Display (display: none)**: This option sets the display style to "none", which effectively hides the element.
2. **Visibility (visibility: hidden)**: This option sets the visibility of the element to "hidden", without affecting its layout or size.

**Pros and Cons**

* **Display (display: none)**
	+ Pros:
		- Faster rendering, as the element is completely removed from the layout
	+ Cons:
		- Can lead to issues with accessibility, as the element is no longer visible
		- May affect page load times, as the browser needs to wait for the element to be fully loaded and removed
* **Visibility (visibility: hidden)**
	+ Pros:
		- Preserves the element's layout and size, making it easier to maintain accessibility
		- Faster rendering, as only the visibility of the element is affected
	+ Cons:
		- May cause issues with animations or transitions, if the element's visibility is not properly managed

**Library**

The test cases use jQuery, a popular JavaScript library for DOM manipulation and event handling. The script tag in the HTML preparation code includes jQuery version 3.3.1.

**Special JS feature or syntax**

There are no special features or syntax mentioned in this benchmark. However, it's worth noting that the use of `toggleClass` method implies a specific behavior, which might not be applicable to all browsers or environments.

**Other alternatives**

In addition to the two options being compared (display vs visibility), other approaches could include:

* **Opacity**: Using the opacity CSS property to adjust the element's transparency.
* **Transform**: Using the transform CSS property to move or scale the element, potentially affecting its visibility.
* **Positioning**: Using absolute or relative positioning to control the element's layout and visibility.

These alternatives might introduce additional complexity, but could provide more fine-grained control over the element's behavior. However, they would also likely require more significant changes to the benchmark test cases.

I hope this explanation helps software engineers understand the nuances of these benchmarks!

Related benchmarks:

visibility vs display (version: 0)

Comparing performance of: display vs visibility

Created: 5 years ago by: Guest

Jump to the latest result

display

visibility

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):