Benchmark: Create div template

Tests:

createBox0
let div = document.createElement('div'); let bboxDims = document.createElement('span'); const x1k = document.createElement('b') x1k.textContent = 'x1' const x2k = x1k.cloneNode() x2k.textContent = 'x2' const y1k = x1k.cloneNode() y1k.textContent = 'y1' const y2k = x1k.cloneNode() y2k.textContent = 'y2' div.className='bbox-elem' bboxDims.className='bbox-dims' x2k.className='b2' y2k.className='b2' bboxDims.insertAdjacentElement('beforeend', x1k) bboxDims.insertAdjacentElement('beforeend', document.createElement('span')) bboxDims.insertAdjacentElement('beforeend', x2k) bboxDims.insertAdjacentElement('beforeend', document.createElement('span')) bboxDims.insertAdjacentElement('beforeend', document.createElement('br')) bboxDims.insertAdjacentElement('beforeend', y1k) bboxDims.insertAdjacentElement('beforeend', document.createElement('span')) bboxDims.insertAdjacentElement('beforeend', y2k) bboxDims.insertAdjacentElement('beforeend', document.createElement('span')) div.insertAdjacentElement('beforeend', bboxDims) return div
createBox1
let div = document.createElement('div'); let bboxDims = document.createElement('span'); let bbt = bboxDims.cloneNode() const x1k = document.createElement('b') x1k.textContent = 'x1' const x2k = x1k.cloneNode() x2k.textContent = 'x2' const y1k = x1k.cloneNode() y1k.textContent = 'y1' const y2k = x1k.cloneNode() y2k.textContent = 'y2' div.className='bbox-elem' bboxDims.className='bbox-dims' x2k.className='b2' y2k.className='b2' bboxDims.insertAdjacentElement('beforeend', x1k) bboxDims.insertAdjacentElement('beforeend', bbt) bboxDims.insertAdjacentElement('beforeend', x2k) bboxDims.insertAdjacentElement('beforeend', bbt.cloneNode()) bboxDims.insertAdjacentElement('beforeend', document.createElement('br')) bboxDims.insertAdjacentElement('beforeend', y1k) bboxDims.insertAdjacentElement('beforeend', bbt.cloneNode()) bboxDims.insertAdjacentElement('beforeend', y2k) bboxDims.insertAdjacentElement('beforeend', bbt.cloneNode()) div.insertAdjacentElement('beforeend', bboxDims) return div
createBox2
let div = document.createElement('div'); let bboxDims = document.createElement('span'); let bbt = bboxDims.cloneNode() const x1k = document.createElement('b') x1k.textContent = 'x1' const x2k = x1k.cloneNode() x2k.textContent = 'x2' const y1k = x1k.cloneNode() y1k.textContent = 'y1' const y2k = x1k.cloneNode() y2k.textContent = 'y2' div.className='bbox-elem' bboxDims.className='bbox-dims' x2k.className='b2' y2k.className='b2' bboxDims.append(x1k,bbt,x2k,bbt.cloneNode(),document.createElement('br'),y1k,bbt.cloneNode(),y2k,bbt.cloneNode()) div.insertAdjacentElement('beforeend', bboxDims) return div

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
createBox0
createBox1
createBox2

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.

Measuring JavaScript performance is crucial for developers to optimize their code and create efficient applications.

**Benchmark Definition**

The provided benchmark definition represents a simple HTML element creation test case. In this test, the user creates a `div` element with multiple nested elements using different methods:

1. `createBox0`: Creates two copies of a single node (`x1k`, `y1k`) and clones them separately for each level.
2. `createBox1`: Creates two separate nodes for each level (`x1k`, `x2k`, `y1k`, `y2k`), then clones one of the nodes and inserts multiple versions of it.
3. `createBox2`: Uses the `append()` method to add all elements at once, including cloned copies.

**Options Compared**

The benchmark compares three different approaches:

*   **Efficiency**: How many times faster is each approach compared to others?
*   **Memory usage**: Which approach uses less memory?

**Pros and Cons of Each Approach:**

1.  `createBox0`:
    *   Pros: Easy to understand, simple cloning logic.
    *   Cons: More elements are cloned, which can lead to increased overhead due to the clone operation.

2.  `createBox1`:
    *   Pros: Uses fewer clones since each level has its own copy of the node, resulting in less overhead compared to full cloning.
    *   Cons: Requires additional memory allocation for separate nodes, potentially leading to higher memory usage.

3.  `createBox2`:
    *   Pros: Minimizes memory usage by using a single clone operation and reducing the number of nodes created.
    *   Cons: More complex logic due to the use of `append()`, which might be harder for some developers to understand or optimize.

**Library Usage**

There is no explicit mention of any JavaScript library being used in this benchmark definition. However, it's likely that the code uses built-in DOM methods like `createElement()`, `appendChild()`, and `cloneNode()` for creating and manipulating HTML elements.

**Special JS Features/Syntax**

The benchmark does not explicitly use any special JavaScript features or syntax beyond standard DOM operations. If there are any specialized libraries or extensions being used under the hood, that information is not provided in the benchmark definition.

**Alternatives**

Other alternatives could be:

1.  **Using a different HTML structure**: Consider alternative structures like using `fragments` or `div.contains()` to optimize element insertion.
2.  **Leveraging modern DOM methods**: Utilize more advanced DOM APIs, such as `DOMTokenList`, for efficient element selection and manipulation.
3.  **Profiling and Optimization Techniques**: Employ profiling tools (like Chrome DevTools) to identify performance bottlenecks, then apply optimization techniques tailored to your application's specific needs.

By comparing these approaches, developers can choose the most efficient method for their use case, ensuring optimal performance in their applications.

Related benchmarks:

Create div template (version: 2)

Comparing performance of: createBox0 vs createBox1 vs createBox2

Created: 3 years ago by: Registered User

Jump to the latest result

createBox0

createBox1

createBox2

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):