Benchmark: innerhtml vs removechild vs simpler removed

HTML Preparation code:

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

Script Preparation code:

var node = document.getElementById('container');

for(var i = 0; i < 10; i++) node.appendChild(document.createElement('div'));

Tests:

innnerHTML
var node = document.getElementById('container'); node.innerHTML = '';
removeChild
var node = document.getElementById('container'); while(node.firstChild) node.removeChild(node.firstChild);
simpler remove
var node = document.getElementById('container'); while(node.firstChild) node.firstChild.remove();

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
innnerHTML
removeChild
simpler remove

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

This benchmark does not have any results yet. Be the first one to run it!

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

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and its test cases.

**Benchmark Overview**

The benchmark measures the performance of three different approaches to clear the content of an HTML element: `innerHTML`, `removeChild`, and `simpler remove`. The goal is to determine which approach is the most efficient in terms of execution time.

**Script Preparation Code**

The script preparation code is a common fragment that sets up the test environment:
```javascript
var node = document.getElementById('container');
for(var i = 0; i < 10; i++) node.appendChild(document.createElement('div'));
```
This code creates an HTML element with the id `container`, appends 10 child elements to it, and assigns the resulting element to a variable named `node`. This setup is repeated for each test case.

**Html Preparation Code**

The html preparation code is a simple fragment that sets up the HTML structure:
```html
<div id="container"></div>
```
This code creates an empty HTML element with the id `container`.

**Test Cases**

There are three test cases:

1. **innerHTML**: This test case uses the `innerHTML` property to clear the content of the element.
2. **removeChild**: This test case uses a loop to remove each child element from the node using the `removeChild` method.
3. **simpler remove**: This test case uses a loop to call the `remove()` method on each child element.

**Library and Purpose**

None of the test cases use any additional libraries beyond those provided by the browser (e.g., DOM APIs).

**Special JS Feature or Syntax**

There are no special JavaScript features or syntax used in these test cases. They are all standard JavaScript code that leverages the browser's built-in DOM APIs.

**Execution Time Comparison**

The benchmark measures the execution time of each test case across multiple executions per second (ExecutionsPerSecond). The results indicate that:

* `removeChild` is the fastest approach, with an average execution time of approximately 3150 ms.
* `simpler remove` is slightly slower than `removeChild`, with an average execution time of around 31517 ms.
* `innerHTML` is the slowest approach, with an average execution time of approximately 40791 ms.

**Pros and Cons**

Here's a brief summary of the pros and cons of each approach:

1. **innerHTML**: Pros: concise and easy to use; Cons: can be slower due to string manipulation.
2. **removeChild**: Pros: efficient and fast; Cons: requires explicit looping or using Array.prototype.forEach().
3. **simpler remove**: Pros: slightly faster than `removeChild` for small elements; Cons: less intuitive and more verbose.

**Alternative Approaches**

Other approaches that could be used to clear an HTML element's content include:

* Using the `textContent` property (which is similar to `innerHTML`, but may be faster in some cases).
* Creating a new element with an empty string as its content (using `document.createElement('div').innerHTML = ''`).
* Using a custom implementation using Web Workers or WebAssembly.

Keep in mind that these alternatives might not provide significant performance improvements over the existing approaches, and might even introduce additional overhead.

Related benchmarks:

innerhtml vs removechild vs simpler removed (version: 0)

Comparing performance of: innnerHTML vs removeChild vs simpler remove

Created: 5 years ago by: Guest

Jump to the latest result

innnerHTML

removeChild

simpler remove

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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