<table>
<tr>
<td id="title"><span>Some text</span></td>
<td id="url"><span>Some other text</span></td>
</tr>
</table>
const title = document.getElementById('title');
const url = document.getElementById('url');
title.innerHTML = "";
url.innerHTML = "";
title.replaceChildren();
url.replaceChildren();
--enable-precise-memory-info
flag.
Test case name | Result |
---|---|
innerHTML | |
replaceChildren |
Test name | Executions per second |
---|---|
innerHTML | 280164.2 Ops/sec |
replaceChildren | 9523645.0 Ops/sec |
The provided benchmark tests the performance of two different approaches to clear an HTML element: using innerHTML
and replaceChildren
. Let's break down what each option entails, their pros and cons, and other considerations.
Options Compared
Pros and Cons
innerHTML
:replaceChildren
:innerHTML
, especially for large or complex content, as it only removes child elements without creating a new string object.Other Considerations
replaceChildren
.innerHTML
, it's essential to be cautious when dealing with HTML entities or special characters, as they may not be properly decoded.replaceChildren
, it's crucial to ensure that the new child elements are created correctly and that any events attached to them are properly wired up.Library Usage
There is no library used in this benchmark. However, if you were to use a library for DOM manipulation, some popular options include:
empty()
method for removing content from an element.setState()
and forceUpdate()
for updating component state and DOM elements.Special JS Features/Syntax
There are no special JavaScript features or syntax used in this benchmark. However, if you were to use some advanced techniques like:
Overall, the choice between innerHTML
and replaceChildren
depends on your specific use case, performance requirements, and browser support. If you need to clear an element frequently or work with complex content, replaceChildren
might be a better option. Otherwise, innerHTML
is often a simpler and more straightforward solution.
Alternatives
Other alternatives for clearing an HTML element include:
outerHTML
: Replaces the entire outer HTML of an element with a new string.innerHTML
or replaceChildren
, but requires more effort to set up correctly.