Benchmark: createTextNode vs cloneNode asdf

Tests:

createElement
var list = [], n = 0; while(true) { n++; list.push(document.createTextNode('div')); if(n===100000) break; }
cloneNode
var list = [], n = 0, node = document.createTextNode('asdf'); while(true) { node.textContent ="div" n++; list.push(node.cloneNode(true)); if(n===100000) break; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
createElement
cloneNode

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser/OS: Chrome 120 on Windows

View result in a separate tab

Test name	Executions per second
createElement	13.6 Ops/sec
cloneNode	16.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Measuring the performance of JavaScript microbenchmarks like this one is essential to understand how different approaches impact the execution speed of various tasks.

**Benchmark Overview**

The provided JSON represents two individual test cases: `createElement` and `cloneNode`. The goal is to determine which method is faster when creating new DOM elements or cloning existing ones before insertion into a document.

**Options Compared**

Two options are compared:

1. **`document.createTextNode()`**: This method creates a new Text node, which can be used as the content of an element.
2. **`cloneNode(true)`**: This method clones the original text node and returns a new node that is a copy of the original.

**Pros and Cons of Each Approach**

1. `document.createTextNode()`
	* Pros:
		+ Creates a new, independent Text node, which can be useful in certain scenarios.
		+ Avoids potential issues with cloning nodes that contain complex data structures.
	* Cons:
		+ May create unnecessary memory allocations if not properly cleaned up.
2. `cloneNode(true)`
	* Pros:
		+ Efficiently creates a new node that is a copy of the original, without creating a new Text node.
		+ Reduces memory allocation overhead compared to creating a new Text node from scratch.
	* Cons:
		+ Creates a deep copy of the original node, which can be slower for large or complex data structures.
		+ May lead to issues if the cloned node is not properly cleaned up.

**Library Usage**

None of the provided benchmark test cases explicitly use any JavaScript libraries. However, it's worth noting that some libraries like jQuery often provide convenient methods for working with DOM elements and text nodes (e.g., `jQuery.text()`).

**Special JS Feature or Syntax**

There are no special JS features or syntax mentioned in this benchmark. The code snippets only utilize standard JavaScript constructs.

**Other Alternatives**

If you wanted to measure the performance of other approaches, some alternatives could be:

1. **`Element.createDocumentFragment()`**: This method creates a new DocumentFragment, which can be used to concatenate multiple elements or text nodes.
2. **`HTML.createElement()` with `textContent`**: Creating an element with `textContent` set to a string can be faster than creating individual Text nodes or cloning existing ones.
3. **Using `innerHTML` instead of `textContent`**: Using `innerHTML` to populate an element's content can be slower and less efficient due to security restrictions.

Keep in mind that the choice of approach depends on the specific use case and requirements of your application.

Related benchmarks:

createTextNode vs cloneNode asdf (version: 0)

Faster way to create new dom elements before insertion

Comparing performance of: createElement vs cloneNode

Created: 5 years ago by: Guest

Jump to the latest result

createElement

cloneNode

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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