Benchmark: Web Component append content 4 ways

Script Preparation code:

      customElements.define('x-innerhtml', class extends HTMLElement {
          connectedCallback() {
              this.innerHTML = '<span>.</span> ';
          }
      });
      customElements.define('x-appendraw', class extends HTMLElement {
          connectedCallback() {
              const span = document.createElement('span');
              span.textContent = '. ';
              this.append(span);
          }
      });
      customElements.define('x-appendchildraw', class extends HTMLElement {
          connectedCallback() {
              const span = document.createElement('span');
              span.textContent = '. ';
              this.appendChild(span);
          }
      });

      const createElement = (tag, props = {}) => Object.assign(document.createElement(tag), props);

      customElements.define('x-prepend', class extends HTMLElement {
          connectedCallback() {
              this.prepend(createElement("span", {
                  textContent: ". "
              }));
          }
      });
      customElements.define('x-append', class extends HTMLElement {
          connectedCallback() {
              this.append(createElement("span", {
                  textContent: ". "
              }));
          }
      });

​x
 
      customElements.define('x-innerhtml', class extends HTMLElement {          connectedCallback() {              this.innerHTML = '<span>.</span> ';          }      });      customElements.define('x-appendraw', class extends HTMLElement {          connectedCallback() {              const span = document.createElement('span');              span.textContent = '. ';              this.append(span);          }      });      customElements.define('x-appendchildraw', class extends HTMLElement {          connectedCallback() {              const span = document.createElement('span');              span.textContent = '. ';              this.appendChild(span);          }      });​      const createElement = (tag, props = {}) => Object.assign(document.createElement(tag), props);​      customElements.define('x-prepend', class extends HTMLElement {          connectedCallback() {              this.prepend(createElement("span", {                  textContent: ". "              }));          }      });      customElements.define('x-append', class extends HTMLElement {          connectedCallback() {              this.append(createElement("span", {                  textContent: ". "              }));          }      });

Tests:

x-innerHTML
document.createElement("x-innerhtml");
document.createElement("x-innerhtml");
x-appendraw
document.createElement("x-appendraw");
document.createElement("x-appendraw");
x-appenchilddraw
document.createElement("x-appendchildraw");
document.createElement("x-appendchildraw");
x-prepend
document.createElement("x-prepend");
document.createElement("x-prepend");
x-append
document.createElement("x-append");
document.createElement("x-append");

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Experimental features:

Memory measurements supported only in Chrome.
For precise memory measurements Chrome must be launched with --enable-precise-memory-info flag.
More information: Monitoring JavaScript Memory

Test case name	Result
x-innerHTML
x-appendraw
x-appenchilddraw
x-prepend
x-append

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 7 months ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Browser/OS: Chrome 128 on Windows

View result in a separate tab

Test name	Executions per second
x-innerHTML	419903.2 Ops/sec
x-appendraw	422957.7 Ops/sec
x-appenchilddraw	384945.8 Ops/sec
x-prepend	356556.5 Ops/sec
x-append	321177.8 Ops/sec

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

Let's break down the benchmark and its various components.

Benchmark Overview

The benchmark, named "Web Component append content 4 ways", tests the performance of different methods for appending content to a Web Component (WC). A WC is an HTML element that can be customized with custom properties. In this case, we're creating four types of WCs:

x-innerHTML
x-appendraw
x-appendchildraw
x-prepend
x-append

Test Case Breakdown

Each test case measures the performance of a specific WC method.

x-innerHTML: Tests appending content using the innerHTML property.
- Pros: Easy to implement, widely supported.
- Cons: May have security implications due to potential XSS vulnerabilities.
x-appendraw: Tests appending content using the append() method.
- Pros: Native support in most browsers, efficient.
- Cons: Requires creating a new element and passing it to the WC.
x-appendchildraw: Tests appending content using the appendChild() method.
- Pros: Native support in most browsers, efficient.
- Cons: Requires creating a new element.
x-prepend: Tests prepping content before appending it using the prepend() method.
- Pros: Can be more efficient than other methods for large amounts of content.
- Cons: May have higher overhead due to prepending.
x-append: Tests appending content using a custom function, createElement(), and passing it to the WC.
- Pros: Allows for fine-grained control over element creation.
- Cons: Requires more complex implementation.

Library Usage

The benchmark uses customElements.define() to create the WCs. This library is part of the Web Components specification, which provides a way to define custom HTML elements.

Special JS Features or Syntax

There are no special JavaScript features or syntax used in this benchmark that require specific handling.

Other Alternatives

To compare the performance of these methods, alternative approaches could be explored, such as:

Using native WebSockets for real-time communication
Leveraging WebGL for accelerated rendering
Utilizing WebAssembly for performance-critical components

However, these alternatives are not part of the current benchmark and would require significant changes to the test suite.

Keep in mind that this is just a general overview, and specific results may vary depending on the browser, hardware, and other factors.

LLMs can make mistakes. Check important info.

Let's break down the benchmark and its various components.

**Benchmark Overview**

1. `x-innerHTML`
2. `x-appendraw`
3. `x-appendchildraw`
4. `x-prepend`
5. `x-append`

**Test Case Breakdown**

Each test case measures the performance of a specific WC method.

1. **`x-innerHTML`**: Tests appending content using the `innerHTML` property.
	* Pros: Easy to implement, widely supported.
	* Cons: May have security implications due to potential XSS vulnerabilities.
2. **`x-appendraw`**: Tests appending content using the `append()` method.
	* Pros: Native support in most browsers, efficient.
	* Cons: Requires creating a new element and passing it to the WC.
3. **`x-appendchildraw`**: Tests appending content using the `appendChild()` method.
	* Pros: Native support in most browsers, efficient.
	* Cons: Requires creating a new element.
4. **`x-prepend`**: Tests prepping content before appending it using the `prepend()` method.
	* Pros: Can be more efficient than other methods for large amounts of content.
	* Cons: May have higher overhead due to prepending.
5. **`x-append`**: Tests appending content using a custom function, `createElement()`, and passing it to the WC.
	* Pros: Allows for fine-grained control over element creation.
	* Cons: Requires more complex implementation.

**Library Usage**

The benchmark uses `customElements.define()` to create the WCs. This library is part of the Web Components specification, which provides a way to define custom HTML elements.

**Special JS Features or Syntax**

There are no special JavaScript features or syntax used in this benchmark that require specific handling.

**Other Alternatives**

To compare the performance of these methods, alternative approaches could be explored, such as:

* Using native WebSockets for real-time communication
* Leveraging WebGL for accelerated rendering
* Utilizing WebAssembly for performance-critical components

However, these alternatives are not part of the current benchmark and would require significant changes to the test suite.

Keep in mind that this is just a general overview, and specific results may vary depending on the browser, hardware, and other factors.

Related benchmarks:

Web Component append content 4 ways (version: 3)

Append content to a Web Component with innerHTML, append, appendChild

Comparing performance of: x-innerHTML vs x-appendraw vs x-appenchilddraw vs x-prepend vs x-append

Created: 7 months ago by: Registered User

Jump to the latest result

x-innerHTML

x-appendraw

x-appenchilddraw

x-prepend

x-append

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):