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eligrey/node.isConnected-polyfill.js

Last active July 11, 2023 12:52
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Node.isConnected polyfill for EdgeHTML
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node.isConnected-polyfill.js
/*
* Node.isConnected polyfill for EdgeHTML
* 2021-04-12
*
* By Eli Grey, https://eligrey.com
* Public domain.
* NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
*/
if (!('isConnected' in Node.prototype)) {
Object.defineProperty(Node.prototype, 'isConnected', {
get() {
return (
!this.ownerDocument ||
!(
this.ownerDocument.compareDocumentPosition(this) &
this.DOCUMENT_POSITION_DISCONNECTED
)
);
},
});
}
@vanowm
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vanowm commented Dec 26, 2022

Wouldn't a connected element always have a parentNode? (unless of course it's a root element)

@theseer
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theseer commented Jul 11, 2023

Wouldn't a connected element always have a parentNode? (unless of course it's a root element)

Depends on your definition of "connected". If it's a childnode within a subtree that's not connected, it does have a parentNode - but it's still not "connected" within the Document.

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