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(version: 0)
Comparing performance of:
fragment vs inner
Created:
4 years ago
by:
Guest
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Tests:
fragment
const fragment = document.createDocumentFragment(); const el = document.createElement('div'); const heading = document.createElement('h1'); const para1 = document.createElement('p'); const para2 = document.createElement('p'); const button = document.createElement('button'); heading.innerText = 'Heading'; para1.innerText = 'Paragraph 1'; para2.innerText = 'Paragraph 2'; button.innerText = 'Button'; el.appendChild(heading); el.appendChild(para1); el.appendChild(para2); el.appendChild(button); fragment.appendChild(el); document.documentElement.appendChild(fragment);
inner
const el = document.createElement('div'); el.innerHTML = ` <h1>Heading</h1> <p>Paragraph 1</p> <p>Paragraph 2</p> <button>Button</button> <div> <p>Paragraph 1</p> <p>Paragraph 2</p> <button>Button</button> </div> `; document.documentElement.appendChild(el);
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Suite status:
<idle, ready to run>
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Test case name
Result
fragment
inner
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
I'll break down the benchmark definition and test cases to explain what's being tested, compared, and some pros and cons of each approach. **Benchmark Definition** The provided JSON defines two benchmarks: "fragment" and "inner". Both benchmarks measure the performance of creating and appending DOM elements to a document fragment or directly to the `document.documentElement`. **Script Preparation Code** There is no script preparation code provided in this benchmark, which means that the test cases will be executed from scratch on each run. **HTML Preparation Code** There is also no HTML preparation code provided. This suggests that the tests are focused solely on the JavaScript code and do not involve any external HTTP requests or rendering of HTML templates. **Test Cases** The two test cases differ in how they create and append DOM elements to a document: 1. **Fragment**: * Creates a `document.createDocumentFragment()` and appends several elements (heading, paragraph 1, paragraph 2, button) to it using `appendChild()`. * Then, appends the fragment to the `document.documentElement` using `appendChild()`. 2. **Inner**: * Creates an element (`el`) with `innerHTML` containing a HTML string with multiple elements and nesting. * Appends this element directly to the `document.documentElement`. **Comparison** The two approaches compare how fast they are: 1. Creating and appending DOM elements using a document fragment (Fragment) vs. using `innerHTML`. 2. Creating an element with `innerHTML` containing nested elements. **Pros and Cons** **Fragment Approach:** Pros: * Can be more efficient when working with large amounts of content, as it allows for faster appending and manipulation of elements. * May be beneficial when dealing with complex layouts or dynamic content. Cons: * Requires more JavaScript code and DOM manipulation, which can add overhead. * Might be less readable and maintainable due to the added complexity. **Inner Approach:** Pros: * Simpler code with fewer DOM manipulations required. * Can result in faster rendering and layout calculations for the browser. Cons: * May be slower for large amounts of content or complex layouts, as `innerHTML` can cause the browser to reparse and recalculate the layout more frequently. * Less control over element order and nesting. **Library Usage** There is no library mentioned in these benchmarks. However, in general, JavaScript libraries like jQuery or React can simplify DOM manipulation tasks but might introduce additional overhead due to their own mechanisms for appending elements or managing state. **Special JS Features/Syntax** None of the test cases use any special JavaScript features or syntax (e.g., ES6+ modules, async/await, etc.). **Alternatives** Other alternatives for creating and manipulating DOM elements include: 1. **ElementTree API**: A proposed standard for a more efficient way to manipulate and query DOM trees. 2. **JSZip**: A library that provides an optimized way to create and append elements to the DOM. 3. **React or other libraries**: These libraries often provide optimized solutions for creating and rendering UI components, but might add dependencies and overhead. Keep in mind that these alternatives are not specifically designed for benchmarking purposes like MeasureThat.net but can be useful tools for improving performance and readability in your own projects.
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