Benchmark: DOM manipulation vs innerhtml long - 1

HTML Preparation code:

<div id="root"></div>

Tests:

innerHTML
let root = document.querySelector('#root') root.innerHTML = `<div id="4/4b809ca8-b600-a286-62b6-83a6a5fc4310" style="left: 0px; top: 0px; white-space: nowrap;"> 0 1 2 3 4 </div>`
DOM manipulation
let root = document.querySelector('#root') let itemBox = document.createElement('div') itemBox.id = "4/4b809ca8-b600-a286-62b6-83a6a5fc4310" itemBox.style = "left: 0px; top: 0px; white-space: nowrap;" for (let i=0; i<5;i++) { let itemSpan = document.createElement('span') itemSpan.className = "testing"; itemSpan.innerText = i; itemBox.appendChild(itemSpan); } root.appendChild(itemBox)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
innerHTML
DOM manipulation

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser/OS: Chrome 131 on Windows

View result in a separate tab

Test name	Executions per second
innerHTML	90990.6 Ops/sec
DOM manipulation	63245.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's dive into the world of MeasureThat.net and explore what's being tested in this benchmark.

**Benchmark Overview**

The benchmark is comparing two approaches to manipulate the DOM (Document Object Model) in JavaScript:

1. **innerHTML**: This approach uses the `innerHTML` property to set the content of an HTML element.
2. **DOM manipulation**: This approach creates elements programmatically using `document.createElement()` and appends them to another element.

**Options Compared**

The benchmark is comparing these two approaches because they have different performance characteristics:

* **innerHTML**: This method is often faster because it involves a single operation to set the content of an element, which can be optimized by the browser.
* **DOM manipulation**: This method requires creating and appending multiple elements, which can lead to slower performance due to the overhead of DOM operations.

**Pros and Cons**

Here are some pros and cons of each approach:

**innerHTML**

Pros:

* Often faster due to optimized single operation
* Simpler code to write

Cons:

* Less control over the DOM tree structure
* May lead to unnecessary reflows or repaints if the content changes frequently

**DOM manipulation**

Pros:

* More control over the DOM tree structure
* Can be more efficient for complex layouts or structures

Cons:

* Often slower due to multiple DOM operations
* Requires more code to write and manage

**Other Considerations**

When using `innerHTML`, it's essential to consider the following:

* Avoid using `innerHTML` with unescaped HTML content, as this can lead to security vulnerabilities.
* Use a library like jQuery or a custom solution to parse and sanitize user-inputted HTML.

When using DOM manipulation, keep in mind:

* Be mindful of the number of elements created and appended, as this can impact performance.
* Consider caching or reusing elements when possible to reduce overhead.

**Library and Special JS Features**

In this benchmark, no libraries are explicitly mentioned. However, it's worth noting that MeasureThat.net often uses a custom solution to parse and execute JavaScript code, which is not publicly disclosed.

If the benchmark used special JavaScript features like async/await or Promises, they would be executed as part of the script preparation code. Since this is not the case here, we can ignore these aspects.

**Other Alternatives**

For comparing DOM manipulation approaches, other alternatives could include:

* Using a template engine like Handlebars or Mustache
* Creating elements using a library like React or Vue.js
* Implementing a custom DOM builder

When choosing an alternative, consider factors like performance, ease of use, and the specific requirements of your project.

I hope this explanation helps software engineers understand what's being tested in this benchmark!

Related benchmarks:

DOM manipulation vs innerhtml long - 1 (version: 0)

Comparing performance of: innerHTML vs DOM manipulation

Created: 5 years ago by: Guest

Jump to the latest result

innerHTML

DOM manipulation

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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