Benchmark: clone div vs clone form

Tests:

Clode div
var list = [], n = 0, node = document.createElement('div'); while(true) { n++; list.push(node.cloneNode(true)); if(n===100000) break; }
Clone form
var list = [], n = 0, node = document.createElement('form'); while(true) { n++; list.push(node.cloneNode(true)); if(n===100000) break; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Clode div
Clone form

Fastest: N/A

Slowest: N/A

Latest 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 this benchmark, and I'll explain the options compared, pros and cons of each approach, and other considerations.

**What is being tested?**

The two test cases measure the performance of cloning DOM elements (in this case, `div` and `form`) using JavaScript. The goal is to determine which approach is faster: cloning a single element (`cloneNode(true)`) or creating multiple elements from scratch.

**Options compared:**

1. **Cloning an existing DOM element**: Using `cloneNode(true)` on an already created element.
2. **Creating new DOM elements from scratch**: Creating a new element for each iteration, without reusing any existing element.

**Pros and cons of each approach:**

**Cloning an existing DOM element (Clone div)**

Pros:

* Reuses the same element, reducing object creation overhead.
* Can be faster if the cloned element is complex or large.

Cons:

* Creates a new reference to the original element, which may not be desirable in some cases.
* If the original element is modified elsewhere in the code, it could affect the cloned element's behavior.

**Creating new DOM elements from scratch (Clone form)**

Pros:

* Avoids reusing an existing element, which can lead to unexpected behavior if the original element changes.
* Can be a good choice when working with complex or dynamic elements that require unique configurations.

Cons:

* Creates multiple new elements for each iteration, increasing object creation overhead.
* May result in slower performance due to increased DOM manipulation.

**Other considerations:**

* The `cloneNode(true)` method creates a deep clone of the original element, including all its attributes and child nodes. If you only need a shallow clone (i.e., a copy of the element's attributes but not its child nodes), you can use `cloneNode(false)`.
* Both approaches assume that the cloned elements are used for display or other purposes that don't rely on the original element's behavior.

**Library usage:**

None of the provided benchmark definitions explicitly mention any external libraries. However, if you were to use a library like jQuery or React, it might affect the performance results. For example, using `$(selector).clone()` in jQuery would create a new DOM element that's a copy of the original element.

**Special JS features or syntax:**

None of the provided benchmark definitions employ special JavaScript features or syntax, such as ES6 classes, async/await, or Web Workers. The code uses traditional JavaScript techniques for creating and cloning DOM elements.

Overall, this benchmark provides a useful comparison between two common approaches to cloning DOM elements in JavaScript. By understanding the pros and cons of each approach, developers can make informed decisions about which method is best suited for their specific use cases.

Related benchmarks:

clone div vs clone form (version: 0)

Comparing performance of: Clode div vs Clone form

Created: 5 years ago by: Registered User

Jump to the latest result

Clode div

Clone form

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):