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HTML Text edit #3
(version: 2)
Comparing performance of:
text.data vs el.textContent vs text.nodeValue vs el.innerHTML vs text.remove/append vs text.textContent vs text.replaceData
Created:
6 years ago
by:
Registered User
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HTML Preparation code:
<h1>Title</h1>
Tests:
text.data
const h1El = document.querySelector("h1"); h1El.firstChild.data = "eltiT";
el.textContent
const h1El = document.querySelector("h1"); h1El.textContent = "eltiT";
text.nodeValue
const h1El = document.querySelector("h1"); h1El.firstChild.nodeValue = "eltiT";
el.innerHTML
const h1El = document.querySelector("h1"); h1El.innerHTML = "eltiT";
text.remove/append
const h1El = document.querySelector("h1"); h1El.firstChild.remove(); h1El.append(document.createTextNode("eltiT"))
text.textContent
const h1El = document.querySelector("h1"); h1El.firstChild.textContent = "eltiT";
text.replaceData
const h1El = document.querySelector("h1"); h1El.firstChild.replaceData(0, h1El.firstChild.length, "eltiT")
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (7)
Previous results
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Test case name
Result
text.data
el.textContent
text.nodeValue
el.innerHTML
text.remove/append
text.textContent
text.replaceData
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the world of JavaScript microbenchmarks. **Benchmark Definition** The provided JSON represents a benchmark definition, which is a template for creating and running JavaScript microbenchmarks on the MeasureThat.net website. The key elements in this definition are: 1. **Name**: A unique name for the benchmark. 2. **Description**: An optional description of the benchmark (not used in this example). 3. **Script Preparation Code**: Optional code that should be executed before running the benchmark (empty in this case). 4. **HTML Preparation Code**: The HTML code that will be used to set up the test environment (in this case, a simple `<h1>` element). **Individual Test Cases** The JSON array contains six individual test cases, each representing a specific scenario for the benchmark: 1. `text.data`: Modifying the text content of an `<h1>` element's first child using `data` property. 2. `el.textContent`: Setting the text content of an `<h1>` element using `textContent` property. 3. `text.nodeValue`: Modifying the value of an `<h1>` element's first child using `nodeValue` property. 4. `el.innerHTML`: Setting the HTML content of an `<h1>` element using `innerHTML` property. 5. `text.remove/append`: Removing and then appending a new text node to the first child of an `<h1>` element. 6. `text.textContent`: Modifying the text content of an `<h1>` element's first child using `textContent` property. **Options Compared** In each test case, two options are being compared: * Option 1: Using a specific JavaScript property or method to modify the element's content (e.g., `data`, `nodeValue`, `textContent`, etc.). * Option 2: Using an alternative approach that involves setting the element's content using different means (e.g., `innerHTML` instead of `textContent`). **Pros and Cons** Here are some pros and cons of each approach: 1. **Using `data` property**: Pros - lightweight, efficient; Cons - not widely supported in older browsers. 2. **Using `nodeValue` property**: Pros - similar to `data`, but with better support for older browsers; Cons - can be slower due to property lookup. 3. **Using `textContent` property**: Pros - wide support across modern browsers, efficient; Cons - may be slower than other approaches due to content parsing. 4. **Using `innerHTML` property**: Pros - widely supported, easy to use; Cons - can be slow and resource-intensive, especially for large content sets. **Library Usage** None of the test cases explicitly use a JavaScript library, but they do rely on browser-specific APIs (e.g., `document.querySelector`, `textContent`, etc.). These libraries are part of the browser's DOM API, which is built-in to most modern browsers. **Special JS Features or Syntax** No special JavaScript features or syntax are used in these test cases. The focus is on comparing different approaches to modifying an `<h1>` element's content using standard properties and methods. **Alternatives** For creating similar benchmarks, you can use other platforms like: * JSCover: A benchmarking tool specifically designed for JavaScript. * JSPerf: A popular online benchmarking platform for JavaScript. * Benchmark.js: A lightweight benchmarking library for JavaScript. Keep in mind that each platform has its own strengths and weaknesses, so it's worth exploring different options to find the best fit for your specific use case.
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