Benchmark: cloneNode vs createElement wafesgrdthf

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

let n = document.createElement.bind(document, 'img')
let c = document.cloneNode.bind(n())

Tests:

cloneNode
for(let i = 300; i--;) c()
createElement
for(let i = 300; i--;) n()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
cloneNode
createElement

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 8 months ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36

Browser/OS: Chrome 139 on Linux

View result in a separate tab

Test name	Executions per second
cloneNode	9458.4 Ops/sec
createElement	9993.6 Ops/sec

Autogenerated LLM Summary (model gpt-4o-mini, generated 8 months ago):

LLMs can make mistakes. Check important info.

The benchmark defined in the provided JSON compares two methods for creating DOM elements in a web application using JavaScript: `createElement` and `cloneNode`.

### Benchmark Overview

1. **Test Functions**:
   - **createElement**: This method creates a new instance of the specified element type. In this benchmark, it's bound to create an 'img' HTML element.
   - **cloneNode**: This method creates a copy of a node in the DOM, which can be either a deep or shallow clone. In this benchmark, it is set up to clone an 'img' element created by `createElement`.

2. **Script Preparation Code**: 
   - The preparation code initializes two functions:
     - `n`: A function that creates a new `img` element.
     - `c`: A function that clones the `img` element created by `n`.

### Individual Test Cases

- **cloneNode**:
  - Executed with the line `for (let i = 300; i--;) c()` which invokes the `cloneNode` operation 300 times. 
  - **Purpose**: This tests how quickly the `cloneNode` method can replicate the existing 'img' element.

- **createElement**:
  - Executed with the line `for (let i = 300; i--;) n()` which creates a new 'img' element 300 times.
  - **Purpose**: This tests the performance of `createElement` for producing new instances of elements.

### Performance Results

From the benchmark results:

- **Executions per Second**:
  - `createElement`: 9993.59 executions/second
  - `cloneNode`: 9458.40 executions/second

### Pros and Cons

- **createElement**:
  - **Pros**:
    - Directly creates a new DOM element; typically faster in terms of raw performance as shown in this benchmark.
    - Fine control over the attributes of the new element as it is created fresh each time.
  - **Cons**:
    - More repetitive and potentially memory-intensive if many similar elements are created because each is a distinct object.

- **cloneNode**:
  - **Pros**:
    - Useful when creating multiple identical nodes, which can save time in scenarios where attributes and configurations are identical.
    - Allows for cloning of entire trees if a deep clone is requested.
  - **Cons**:
    - Slightly slower in this benchmark context compared to the direct creation of a new element.
    - Some care must be taken with event listeners; they do not clone unless they are explicitly set in the original node.

### Other Considerations

- When benchmarks like this are conducted, it is essential to consider the context in which these methods will be used in a real-world application. Performance can vary based on numerous factors such as the size of the DOM, how often the methods are called, and whether the results are cached or reused.

### Alternatives

Other alternatives to creating DOM elements include:

- **DocumentFragment**: If multiple elements are being created and inserted into the DOM, using a `DocumentFragment` for batch processing can reduce reflow and repaint costs in the browser.
- **InnerHTML**: Directly setting `innerHTML` can be faster for multiple additions, but comes with parsing overhead and potential security concerns (XSS).
- **Third-party Libraries**: Libraries like React, Vue, or jQuery provide abstracted methods for DOM manipulations which might have optimizations not present in the pure DOM methods.

In conclusion, both `createElement` and `cloneNode` serve important roles in DOM manipulations. The performance characteristics revealed by this benchmark highlight scenarios where one may be preferable over the other, guided by the needs of the application being developed.

Related benchmarks:

cloneNode vs createElement wafesgrdthf (version: 1)

Comparing performance of: cloneNode vs createElement

Created: 8 months ago by: Guest

Jump to the latest result

cloneNode

createElement

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model gpt-4o-mini, generated 8 months ago):