Benchmark: innerHTML vs insertAdjacentHTML vs appendChild vs insertAdjacentElement fix

Script Preparation code:

 box1 = document.createElement("div");

 box2 = document.createElement("div");
 box2.textContent="X";
 box2HTML = box2.outerHTML;

Tests:

1) innerHTML +=
box1.innerHTML += box2HTML;
2) insertAdjacentHTML
box1.insertAdjacentHTML('beforeend', box2HTML);
3) appendChild
box1.appendChild(box2);
4) insertAdjacentElement
box1.insertAdjacentElement('beforeend', box2);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
1) innerHTML +=
2) insertAdjacentHTML
3) appendChild
4) insertAdjacentElement

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 Goal**
The goal of this benchmark is to compare the performance of different methods for updating the contents of an HTML element:

1. `innerHTML` (inserting content inside the existing element)
2. `insertAdjacentHTML` (inserting a new HTML element or string at a specific position within the existing element)
3. `appendChild` (appending a child element to the end of the existing element)
4. `insertAdjacentElement` (inserting a new child element at a specific position within the existing element)

**Methods Comparison**
Each method has its own pros and cons:

1. **innerHTML**: This is the most straightforward way to update an element's content. However, it can be inefficient if the content needs to be frequently updated, as it involves creating a new DOM node and copying the entire content.
2. **insertAdjacentHTML**: This method allows for more flexibility than `innerHTML` by providing a specific position within the element where the new content will be inserted. It also reduces memory allocation overhead compared to `innerHTML`. However, it requires parsing HTML strings, which can add complexity.
3. **appendChild**: This is similar to `insertAdjacentElement`, but it appends a child element to the end of the existing element. This method is efficient for inserting simple content, but may not be suitable if you need to insert multiple elements at different positions.
4. **insertAdjacentElement**: This method provides more flexibility than `appendChild` by allowing for arbitrary positioning within an element. It also reduces memory allocation overhead compared to `innerHTML`. However, it requires DOM manipulation, which can add complexity.

**Library Usage**
There is no explicit library usage mentioned in the benchmark definition or test cases. However, some libraries like jQuery or React might be used indirectly due to their reliance on these methods for updating DOM elements.

**Special JS Features/ Syntax**
There are no special JavaScript features or syntaxes explicitly used in this benchmark. The focus is solely on comparing the performance of different DOM update methods.

**Other Alternatives**
For testing similar performance benchmarks, you could consider:

1. `insertAdjacentText`: A newer method that inserts a text node at a specific position within an element.
2. `replaceChildren`: A modern method for replacing child elements with new ones, which might be more efficient than the existing methods.
3. Other benchmarking libraries or frameworks like WebPageTest, BrowserBench, or Benchmark.js.

When preparing benchmarks like this one, it's essential to:

1. Choose relevant test cases that cover different scenarios and edge cases.
2. Use a consistent set of parameters (e.g., element type, content size) across all test cases.
3. Select a reliable benchmarking tool or library.
4. Ensure accurate reporting and analysis of the results.

Keep in mind that benchmarks should focus on the specific use case or problem being addressed, rather than trying to compare every possible method or implementation.

Related benchmarks:

innerHTML vs insertAdjacentHTML vs appendChild vs insertAdjacentElement fix (version: 2)

innerHTML vs insertAdjacentHTML vs appendChild vs insertAdjacentElement

Comparing performance of: 1) innerHTML += vs 2) insertAdjacentHTML vs 3) appendChild vs 4) insertAdjacentElement

Created: 4 years ago by: Registered User

Jump to the latest result

1) innerHTML +=

2) insertAdjacentHTML

3) appendChild

4) insertAdjacentElement

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):