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JS: replaceWith vs replaceChild2
(version: 0)
Comparing performance of:
replaceWith vs replaceChild
Created:
one year ago
by:
Guest
Go to the latest result
HTML Preparation code:
<div id="container"><p></p></div>
Script Preparation code:
var container = document.getElementById("container");
Tests:
replaceWith
var paragraph = document.createElement("p"); var existingp = container.querySelector("p"); existingp.replaceWith(paragraph);
replaceChild
var paragraph = document.createElement("p"); var existingp = container.querySelector("p"); container.replaceChild(paragraph, existingp);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
replaceWith
replaceChild
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
9 months ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36
Browser/OS:
Chrome 141 on Windows
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=619361" width="100%" height="500px"></iframe>
replaceChild
1.1M/s
replaceWith
993K/s
View exact numbers
Test name
Executions per second
✓
replaceChild
1,063,846 Ops/sec
replaceWith
992,561 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark and its test cases. **Benchmark Definition** The benchmark is defined in JSON format, which represents two individual microbenchmarks: `replaceWith` and `replaceChild`. The script preparation code and HTML preparation code are also provided. * **Script Preparation Code**: This line of code retrieves a container element from the DOM using `document.getElementById("container")`. * **Html Preparation Code**: This block of HTML creates a simple page with a single `<div>` element containing another `<p>` element. The container is assigned to the variable `container`. **Individual Test Cases** The benchmark consists of two test cases: 1. **replaceWith** This test case creates a new paragraph element using `document.createElement("p")` and then uses the `replaceWith()` method to replace the existing paragraph element (`existingp`) with the newly created one. 2. **replaceChild** Similar to the first test case, but instead of using `replaceWith()`, it uses the `replaceChild()` method to swap the existing paragraph element (`existingp`) with the new one. **Comparison** The benchmark is designed to compare the performance of two methods for replacing an existing DOM element: `replaceWith()` and `replaceChild()`. * **Pros of replaceWith():** + Simpler syntax + May be more efficient since it only needs to create a new element and swap it with the old one, without having to update any attributes or styles. * **Cons of replaceWith():** + May not be supported by older browsers or versions that don't have a `replaceWith()` method. * **Pros of replaceChild():** + More efficient since it only needs to update the child node property of the container element, without creating a new element. + Widely supported across modern browsers and versions. * **Cons of replaceChild():** + Requires more complex syntax + May not be as readable or maintainable as `replaceWith()`. **Library Usage** Neither of these test cases uses any external libraries. The DOM API is used directly to interact with the document. **Special JS Features/Syntax** Neither of these test cases utilizes any special JavaScript features or syntax, such as async/await, Promises, or modern ES6+ syntax.
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