Benchmark: While loop vs Closest

HTML Preparation code:

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<style type="text/css">
.hidden {
display: none;
}
</style>
<div class="visible">
	<div class="hidden">
		<div class="hidden">
			<div class="hidden hidden-last"></div>
		</div>
	</div>
</div>

Script Preparation code:

var $element = $('.hidden-last');

Tests:

while
while ($element.is(":hidden")) { $element = $element.parent(); }
closest
$element = $element.closest(':visible')

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
while
closest

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 25 days ago):

LLMs can make mistakes. Check important info.

Let's break down the provided JSON and explain what's being tested.

**Benchmark Definition**

The benchmark is defined by two test cases:

1. `while` loop
2. `closest` method (part of jQuery library)

The script preparation code includes loading the jQuery library, which provides the `$element` variable used in both test cases.

**Options Compared**

Two options are being compared:

a. **While Loop**: This approach uses a traditional `while` loop to iterate through the DOM elements until it finds the last visible one.
b. **Closest Method**: This approach uses jQuery's `closest` method to find the closest ancestor that matches the specified selector (`:visible` in this case).

**Pros and Cons**

**While Loop**

Pros:

* Simple and easy to understand
* Can be easily implemented without any external libraries

Cons:

* May not be as efficient as other methods, especially for large DOM elements
* Can lead to infinite loops if the condition is not properly checked

**Closest Method**

Pros:

* Fast and efficient, especially for large DOM elements
* Reduces the need for manual iteration through the DOM

Cons:

* Requires jQuery library, which may add extra overhead
* May not work correctly if the closest ancestor does not exist or if the selector is incorrect

**Library: jQuery**

The `closest` method is part of the jQuery library. jQuery is a popular JavaScript library that provides a set of APIs for working with DOM elements, event handling, and more. The `closest` method allows you to find the closest ancestor element that matches a specified selector.

**Special JS Feature/Syntax**

None are mentioned in this benchmark.

**Other Alternatives**

For this specific use case, the while loop approach is simple and easy to understand, but may not be as efficient as the `closest` method. The `closest` method, on the other hand, requires jQuery library, which adds extra overhead.

If you need a more efficient solution without relying on jQuery, you could consider using a library like `lodash` or writing your own custom implementation that uses the DOM's `querySelectorAll` and `closest` methods. Alternatively, you could also use a framework like React or Angular, which provide built-in support for working with DOM elements.

Keep in mind that the best approach depends on the specific requirements of your project, such as performance, code readability, and maintainability.

Latest run results:

Run details: (Test run date: 7 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36

Browser/OS: Chrome 58 on Mac OS X 10.11.6

View result in a separate tab

Test name	Executions per second
while	110185.5 Ops/sec
closest	72784.2 Ops/sec

Related benchmarks:

While loop vs Closest (version: 0)

Comparing performance of: while vs closest

Created: 7 years ago by: Guest

Jump to the latest result

while

closest

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 25 days ago):