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Test wyższości kółka nad kwadratem
(version: 0)
description
Comparing performance of:
Id vs Closest vs ParentNode
Created:
3 years ago
by:
Guest
Jump to the latest result
HTML Preparation code:
<div class="wrapper" id="wrapper"> <div id="slot"></div> </div>
Tests:
Id
let el1 = document.getElementById('slot'); let el2 = document.getElementById('wrapper');
Closest
let el1 = document.getElementById('slot'); let el2 = el1.closest('.wrapper');
ParentNode
let el1 = document.getElementById('slot'); let el2 = el1.parentNode;
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
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Test case name
Result
Id
Closest
ParentNode
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
I'll break down the provided benchmark and its components for a comprehensive explanation. **Benchmark Definition** The benchmark is defined in JSON format, which contains essential information about the test: * `Name`: The name of the test case ("Test wyższości kółka nad kwadratem") * `Description`: A brief description of the test * `Script Preparation Code` and `Html Preparation Code`: These are used to set up the test environment. In this case, they are both empty, indicating that the benchmark is simple and doesn't require any specific setup. **Individual Test Cases** There are three individual test cases: 1. **Id**: This test checks how long it takes for JavaScript to retrieve an element using its `id` property. 2. **Closest**: This test measures the time it takes to find the closest ancestor of an element with a specific class (`'.wrapper'`) using the `closest()` method. 3. **ParentNode**: This test analyzes the time required to access the parent node of an element using the `parentNode` property. **Libraries and Frameworks** There is no explicit library or framework mentioned in the benchmark definition or test cases. **Special JavaScript Features and Syntax** There are a few notable features: * `closest()`: This method is used to find the closest ancestor of an element that matches a specified selector. It's a modern JavaScript method introduced by Microsoft Edge (and later adopted by Chrome) as a part of its DOM manipulation API. * `parentNode`: This property returns the parent node of an element in the DOM tree. **Pros and Cons** Here's a brief summary of the pros and cons for each test case: 1. **Id**: Fast, as it directly accesses the element using its unique identifier. However, if multiple elements with the same ID are used in different parts of the codebase, this could lead to unpredictable behavior. 2. **Closest**: May be slower than `id` due to the additional overhead of finding the closest ancestor. However, it provides a more flexible way to navigate the DOM tree. 3. **ParentNode**: Can be faster than `closest`, as it directly accesses the parent node without searching for ancestors. **Considerations** When writing benchmarks like this, consider the following: * Keep the test cases simple and focused on specific aspects of JavaScript performance. * Use representative input data to ensure accurate results. * Ensure that the benchmark is stable across different browsers and devices. * Consider using a more comprehensive testing framework or library to automate benchmarking. **Other Alternatives** If you're looking for alternative ways to measure JavaScript performance, consider: * Node.js's built-in `Benchmark` module * The WebAssembly (WASM) benchmark suite * Libraries like `jsbench` or `benchmark-js` * Online benchmarks and test suites, such as those provided by browser vendors or third-party services.
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