Benchmark: append vs appendChild v10

HTML Preparation code:

<div id='one'></div>

Tests:

append
let theDiv = document.getElementById('one'), theDivText = document.createTextNode("one"); theDiv.textContent = ''; theDiv.append(theDivText);
appendChild
let theDiv = document.getElementById('one'), theDivText = document.createTextNode("one"); theDiv.textContent = ''; theDiv.appendChild(theDivText);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
append
appendChild

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

I'd be happy to explain what's being tested in the provided benchmark.

**Benchmark Overview**

The benchmark measures the performance difference between two approaches: `append` and `appendChild` methods for adding text content to an HTML element. The test is designed to evaluate which approach is faster on a specific JavaScript engine (in this case, Google Chrome 118).

**Options Being Compared**

There are two options being compared:

1. **`append` method**: This method appends the specified text content to the end of the element's contents.
2. **`appendChild` method**: This method adds the specified child node (in this case, a `TextNode`) as its last child.

**Pros and Cons**

Both methods have their advantages:

* **`append` method**:
	+ Pros: Can be more efficient for small strings or simple text content updates.
	+ Cons: May not work correctly with complex DOM structures or large amounts of data.
* **`appendChild` method**:
	+ Pros: Works well with complex DOM structures and can handle large amounts of data.
	+ Cons: May be slower due to the overhead of adding a new child node.

**Library Used**

In both test cases, the `document.getElementById` and `document.createTextNode` methods are used. These methods are part of the HTML DOM (Document Object Model), which allows JavaScript code to interact with HTML documents. The `document.getElementById` method retrieves an element by its ID, while the `document.createElement` method is not needed in this case as we already have the element created (`<div id='one'></div>`). The `document.createTextNode` method creates a new text node.

**Special JS Feature or Syntax**

Neither of the test cases uses any special JavaScript features or syntax. They are straightforward examples that demonstrate the performance difference between two methods for adding text content to an HTML element.

**Other Alternatives**

There are other approaches you could use to add text content to an HTML element:

* **`innerHTML` property**: This method sets the HTML content of an element, but it can be slower and less accurate than the `append` or `appendChild` methods.
* **`insertAdjacentHTML` method**: This method inserts a string of HTML into an adjacent node, which can be faster and more efficient for large amounts of data.

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

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Safari/537.36 Edg/118.0.2088.61

Browser/OS: Chrome 118 on Windows

View result in a separate tab

Test name	Executions per second
append	418659.5 Ops/sec
appendChild	507296.0 Ops/sec

Related benchmarks:

append vs appendChild v10 (version: 0)

Comparing performance of: append vs appendChild

Created: one year ago by: Guest

Jump to the latest result

append

appendChild

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):