utils/dom/isshadowhostof

Checks whether the given node is the host of any of the given shadow roots.

Answers "is this a stand-in for something inside one of these roots, rather than the real thing?". A DOM API that cannot reach into a shadow tree reports its host in place of the node inside it – most commonly an event target, retargeted for a listener that does not live in that tree. Works for open and closed roots alike.

Parameters

node: EventTarget | null

The node to test.

shadowRoots: Iterable<ShadowRoot>

The shadow roots to test against.

Returns

boolean