Benchmark: append vs appenChild : TextNode

Script Preparation code:

var root = document.createElement("div");

var getRandomNumber = () => Math.floor(Math.random() * 10001);

var getText = () => document.createTextNode(`lorem ipsum ${getRandomNumber()} dolor sit amet`);

var max = 1000;

Tests:

appendChild
for (let i = 0; i < max; i++) { root.appendChild(getText()); }
append
for (let i = 0; i < max; i++) { root.append(getText()); }

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:

No previous run results

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

LLMs can make mistakes. Check important info.

Let's break down what's being tested in the provided JSON benchmark.

**Benchmark Definition**

The benchmark compares two approaches to appending text nodes to a `div` element in a HTML document:

1. **appendChild**: This method appends a new text node to the end of the child elements of the `div` element.
2. **append**: This method is not explicitly defined, but it's likely that it calls `appendChild` internally. However, some browsers (like Firefox) may optimize `append` to behave differently.

**Options being compared**

The two approaches are compared in terms of their performance:

* **Execution count**: The number of times each approach executes the code.
* **Time taken**: The actual time taken by each approach to execute the code.

**Pros and Cons**

* **appendChild**:
	+ Pros: More widely supported across different browsers. Provides more control over the insertion point.
	+ Cons: May be slower in some cases due to its inherent complexity.
* **append** (assuming it's optimized internally):
	+ Pros: Potentially faster than `appendChild` due to optimizations, but this is not guaranteed and depends on the browser implementation.
	+ Cons: Less widely supported across different browsers. May behave unexpectedly if not implemented correctly.

**Library usage**

There doesn't appear to be any explicit library usage in the benchmark definition or test cases.

**Special JS feature/syntax**

None are explicitly mentioned, but it's worth noting that both `appendChild` and `append` methods use the standard DOM API, which is widely supported across different browsers. However, some older browsers may have limited support for certain features or syntax.

**Alternative approaches**

If you wanted to compare other approaches, here are a few possibilities:

* Using `insertBefore` instead of `appendChild`.
* Using a library like jQuery's `.append()` method.
* Implementing your own custom appending logic using CSS transforms or other techniques.

Keep in mind that the performance differences between these approaches may be significant, depending on the specific use case and browser implementation.

Related benchmarks:

append vs appenChild : TextNode (version: 0)

Comparing performance of: appendChild vs append

Created: 2 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):