Benchmark: JS: append vs appendChild 2

HTML Preparation code:

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

Script Preparation code:

var container = document.getElementById("container");
var p1 = document.createElement("p");
var p2 = document.createElement("p");

Tests:

appendChild
container.appendChild(p1); container.appendChild(p2);
append
container.append(p1, p2);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
appendChild
append

Fastest: N/A

Slowest: N/A

Latest run results:

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

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Let's break down the provided benchmark and explain what's being tested, compared, and their pros/cons.

**Benchmark Overview**

The benchmark is designed to compare the performance of two methods: `appendChild` and `append`. Both methods are used to add one or more elements to a parent element in HTML. The test creates two paragraphs (`p1` and `p2`) and appends them to an empty container using each method.

**What's Being Tested**

* The performance difference between `appendChild` and `append` when appending multiple elements to a container.
* The number of executions per second (FPS) for each method on different devices, browsers, and operating systems.

**Methods Compared: AppendChild vs Append**

1. **AppendChild**
	* Uses the DOM API's `appendChild` method.
	* Appends one or more elements to the end of a parent element.
	* Typically used when you need to add elements dynamically and don't care about their order.
2. **Append**
	* Is not a standard DOM API method (it's not supported in most browsers).
	* Some polyfills or libraries provide an implementation for `append`.
	* May be used when you want to concatenate elements or add them in a specific order.

**Pros and Cons:**

1. **AppendChild**
	* Pros:
		+ Widely supported in modern browsers.
		+ Efficient, as it modifies the DOM directly.
		+ Good for appending large numbers of elements.
	* Cons:
		+ Requires access to the DOM API.
		+ Can be slower if used incorrectly (e.g., adding too many elements at once).
2. **Append**
	* Pros:
		+ Convenient, as it's often included in polyfills or libraries.
		+ May be faster for small lists of elements due to caching effects.
	* Cons:
		+ Not supported in all browsers and environments.
		+ Can lead to inefficient DOM manipulation if used extensively.

**Library Used**

In the benchmark code, `append` uses a polyfill implementation provided by the MDN Web Docs. This library is widely used and provides an alternative way to concatenate elements or add them in a specific order when using `appendChild`.

**JavaScript Feature/ Syntax**

The benchmark doesn't use any special JavaScript features or syntax beyond the standard DOM API methods.

**Other Alternatives**

If you need to append elements to a container, consider these alternatives:

1. **DOM Manipulation:** Use `createElement` and `appendChild` for dynamic appending.
2. **Template Engines:** Utilize template engines like Mustache or Handlebars to render templates and avoid manual DOM manipulation.
3. **HTML Builders:** Leverage HTML builders like React or Angular's Virtual DOM to create and append elements efficiently.

Keep in mind that the choice of method depends on your specific use case, performance requirements, and desired behavior.

Related benchmarks:

JS: append vs appendChild 2 (version: 0)

Comparing performance of: appendChild vs append

Created: 3 years ago by: Guest

Jump to the latest result

appendChild

append

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):