Benchmark: replaceChildren vs removechild

HTML Preparation code:

<div id="container">
  <p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p><p>test</p>
</div>

Script Preparation code:

var container = document.getElementById('container');

Tests:

replaceChild
container.replaceChildren();
remove
while(container.firstChild) { container.firstChild.remove(); }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
replaceChild
remove

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:135.0) Gecko/20100101 Firefox/135.0

Browser/OS: Firefox 135 on Windows

View result in a separate tab

Test name	Executions per second
replaceChild	6806003.0 Ops/sec
remove	2432577792.0 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):

LLMs can make mistakes. Check important info.

**Overview**

The provided JSON represents a JavaScript microbenchmarking test case for measuring the performance of two different approaches: `replaceChildren` and `remove` methods on an HTML container element.

**Benchmark Definition**

The benchmark definition is represented by the JSON object:
```json
{
 "Name": "replaceChildren vs removechild",
 "Description": "test",
 "Script Preparation Code": "var container = document.getElementById('container');",
 "Html Preparation Code": "<div id=\"container\">\r\n testtesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttest\r\n</div>"
}
```
This defines the benchmark name, description, and preparation code for both `replaceChildren` and `remove` methods.

**Individual Test Cases**

The individual test cases are defined in two separate JSON objects:
```json
[
  {
    "Benchmark Definition": "container.replaceChildren();",
    "Test Name": "replaceChild"
  },
  {
    "Benchmark Definition": "while(container.firstChild) {\r\n  container.firstChild.remove(); \r\n}\r\n\r\n",
    "Test Name": "remove"
  }
]
```
These test cases measure the performance of `replaceChildren` and `remove` methods, respectively.

**Latest Benchmark Result**

The latest benchmark result is:
```json
[
  {
    "RawUAString": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36",
    "Browser": "Chrome 115",
    "DevicePlatform": "Desktop",
    "OperatingSystem": "Linux",
    "ExecutionsPerSecond": 9926834.0,
    "TestName": "remove"
  },
  {
    "RawUAString": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36",
    "Browser": "Chrome 115",
    "DevicePlatform": "Desktop",
    "OperatingSystem": "Linux",
    "ExecutionsPerSecond": 4217984.0,
    "TestName": "replaceChild"
  }
]
```
This result shows the performance metrics for both `remove` and `replaceChildren` methods on a Linux desktop with Chrome 115.

**Options Compared**

The benchmark compares two options:

1. `replaceChildren`: This method replaces the child nodes of an element with new ones.
2. `remove`: This method removes each child node from an element one by one.

**Pros and Cons**

Here are some pros and cons for each option:

* `replaceChildren`:
	+ Pros: More efficient than removing individual elements, as it reduces the number of DOM mutations.
	+ Cons: May not be suitable for small datasets or when preserving the original order of child nodes is important.
* `remove`:
	+ Pros: Allows for more control over the removal process, especially when working with large datasets or complex child node structures.
	+ Cons: Can result in more DOM mutations and slower performance compared to `replaceChildren`.

**Libraries Used**

The benchmark uses the following libraries:

None explicitly mentioned.

**Special JS Features/Syntax**

There is no special JavaScript feature or syntax used in this benchmark. The code only utilizes standard JavaScript methods (`replaceChildren` and `remove`) on an HTML element.

In conclusion, this benchmarking test case measures the performance of two different approaches for updating the child nodes of an HTML element: `replaceChildren` and `remove`. The results provide insights into the efficiency of each method on a Linux desktop with Chrome 115.

Related benchmarks:

replaceChildren vs removechild (version: 0)

test

Comparing performance of: replaceChild vs remove

Created: one year ago by: Guest

Jump to the latest result

replaceChild

remove

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):