Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
querySelectorAll and querySelectorAll1
(version: 0)
Comparing performance of:
TreeWalker vs querySelectorAll
Created:
3 years ago
by:
Guest
Jump to the latest result
HTML Preparation code:
<!-- article out start --> <article> <!-- article in start --> <h1>Lorem ipsum</h1> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Cumque, nostrum.</p> <!-- article in end --> </article> <!-- article out end --> <!-- article out start --> <article> <!-- article in start --> <h1>Lorem ipsum</h1> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Cumque, nostrum.</p> <!-- article in end --> </article> <!-- article out end --> <!-- article out start --> <article> <!-- article in start --> <h1>Lorem ipsum</h1> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Cumque, nostrum.</p> <!-- article in end --> </article> <!-- article out end -->
Tests:
TreeWalker
document.body.querySelectorAll('p, h1');
querySelectorAll
document.body.querySelectorAll('h1'); document.body.querySelectorAll('p');
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
Fork
Test case name
Result
TreeWalker
querySelectorAll
Fastest:
N/A
Slowest:
N/A
Latest run results:
No previous run results
This benchmark does not have any results yet. Be the first one
to run it!
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
**Overview of the Benchmark** The provided benchmark measures the performance of two different approaches to select elements from an HTML document: `TreeWalker` and `querySelectorAll`. **What is tested?** 1. `TreeWalker`: This approach uses a tree walker to traverse the DOM and find matching elements. 2. `querySelectorAll`: This approach uses a CSS selector to select all elements that match the specified criteria. **Options compared** The benchmark compares the performance of these two approaches on different types of HTML documents: * Selecting all `p` and `h1` elements within the document body using `document.body.querySelectorAll('p, h1')`. * Selecting individual `h1` and `p` elements using separate calls to `document.body.querySelectorAll('h1')` and `document.body.querySelectorAll('p')`. **Pros and Cons of each approach** ### TreeWalker Pros: * Can handle more complex DOM structures with ease * Does not require a specific CSS selector syntax Cons: * May be slower than `querySelectorAll` for simple queries * Requires a custom implementation or usage of the `DOMParser` API ### querySelectorAll Pros: * Faster for simple queries compared to TreeWalker * More widely supported and well-documented Cons: * Limited support for complex DOM structures (requires explicit handling) * Requires a specific CSS selector syntax **Library and its purpose** The benchmark uses the `DocumentObjectModel` API, which provides an interface to interact with the Document Object Model (DOM) of a document. The `document.body.querySelectorAll()` method is part of this API. **Special JS feature or syntax** There are no special JavaScript features or syntax used in this benchmark. **Other alternatives** If you're interested in exploring alternative approaches, here are some options: * `getElementsByClassName()`: This method allows selecting elements based on their class name. * `getElementsByTagName()`: This method returns a collection of elements with a specific tag name (e.g., `document.body.getElementsByTagName('p')`). * `CSSOM Query API`: A set of APIs for querying and manipulating the CSS stylesheets and DOM trees, which provides more advanced features than `querySelectorAll`. * `DOM Traversals`: Other traversal algorithms, such as `Element.contains()` or `Node.childNodes`, can be used to traverse the DOM. Keep in mind that each approach has its own strengths and weaknesses, and choosing the right one depends on your specific use case and performance requirements.
Related benchmarks:
TreeWalker for loop vs querySelectorAll (* )
TreeWalker for loop/(filter) vs querySelectorAll (filter ) 2
TreeWalker vs querySelectorAll *
TreeWalker vs querySelectorAll vs NodeIterator --2
Comments
Confirm delete:
Do you really want to delete benchmark?