Benchmark: JQuery new div element with class2

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>

Tests:

JQuery - direct + class
var list = [], n = 0; while(true) { n++; list.push($('<div class="test">')); if(n===1000) break; }
JQuery - cloneNode + class
var list = [], n = 0, node = document.createElement('div'); var newDiv = function(){ var newNode = node.cloneNode(false); newNode.className = [].slice.call(arguments).join(' '); return $(newNode); } while(true) { n++; list.push(newDiv("test")); if(n===1000) break; }
JQuery - newNode + class
var list = [], n = 0; var newDiv = function(){ var newNode = document.createElement('div'); newNode.className = [].slice.call(arguments).join(' '); return $(newNode); } while(true) { n++; list.push(newDiv("test")); if(n===1000) break; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
JQuery - direct + class
JQuery - cloneNode + class
JQuery - newNode + class

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

Measuring JavaScript performance is crucial in understanding how different libraries, features, and syntax affect application execution.

**Benchmark Overview**

The provided benchmark tests the speed of creating new DOM elements using jQuery in three different ways:

1. **Direct**: `$('#' + 'test').` (Using direct DOM element creation)
2. **CloneNode**: Using `node.cloneNode(false)` to create a copy of an existing DOM element
3. **NewNode**: Creating a new DOM element from scratch using `document.createElement('div')`

**Library: jQuery**

jQuery is a popular JavaScript library used for DOM manipulation, event handling, and other tasks. In this benchmark, it's used as a facade to simplify the creation of new DOM elements.

The three test cases use jQuery's `$` function to wrap the newly created DOM element, allowing for easier chaining and method calls on the element.

**Options Comparison**

Here's a brief overview of each option:

1. **Direct**: Creating a new DOM element directly using `$('#' + 'test')`.
	* Pros:
		+ Fastest approach (no cloning or creating an intermediate node)
	* Cons:
		+ Inefficient if the element needs to be reused multiple times
2. **CloneNode**: Using `node.cloneNode(false)` to create a copy of an existing DOM element.
	* Pros:
		+ Can be faster than direct creation if the element is reused multiple times
	* Cons:
		+ Creates an intermediate clone, which might incur additional overhead
3. **NewNode**: Creating a new DOM element from scratch using `document.createElement('div')`.
	* Pros:
		+ Flexible and can be reused with different attributes or classes
	* Cons:
		+ Slower than direct creation due to the overhead of creating an intermediate node

**Special Considerations**

The benchmark doesn't use any special JavaScript features or syntax that are not commonly used in web development. However, it's worth noting that using `cloneNode` or `newNode` might be beneficial if you need to create multiple elements with similar attributes or classes.

**Other Alternatives**

If you're looking for alternative ways to create new DOM elements, consider the following:

* Using a library like React or Angular, which provide optimized DOM management and virtual DOM capabilities.
* Implementing your own custom element creation function using JavaScript's `document.createElement()` method.
* Leveraging Webpack's built-in support for dynamic imports and lazy loading of DOM elements.

**Benchmark Results Interpretation**

The benchmark results show that the order of execution affects performance:

1. **JQuery - cloneNode + class**: The fastest approach, with an average execution rate of 1559.0133056640625 executions per second.
2. **JQuery - newNode + class**: The slowest approach, with an average execution rate of 198.54763793945312 executions per second.

Keep in mind that these results are specific to the Safari 16 browser on a Mac OS X 10.15.7 machine and might not be representative of other environments or browsers.

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.4 Safari/605.1.15

Browser/OS: Safari 16 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
JQuery - direct + class	198.5 Ops/sec
JQuery - cloneNode + class	1559.0 Ops/sec
JQuery - newNode + class	1281.7 Ops/sec

Related benchmarks:

JQuery new div element with class2 (version: 0)

Faster way to create new dom elements before insertion with JQuery (+ set class)

Comparing performance of: JQuery - direct + class vs JQuery - cloneNode + class vs JQuery - newNode + class

Created: one year ago by: Guest

Jump to the latest result

JQuery - direct + class

JQuery - cloneNode + class

JQuery - newNode + class

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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