ElementInternals: shadowRoot property
The shadowRoot
read-only property of the ElementInternals
interface returns the ShadowRoot
for this element.
Value
A ShadowRoot
if the element has a shadow root, otherwise null
.
Examples
The following example prints the value of shadowRoot
to the console, immediately after calling HTMLElement.attachInternals()
. At this point the value is null
. After calling Element.attachShadow()
the element has a Shadow Root, and shadowRoot
returns the object representing it.
js
class MyCustomElement extends HTMLElement {
constructor() {
super();
this.internals_ = this.attachInternals();
console.log(this.internals_.shadowRoot); // null
this.attachShadow({ mode: "open" });
console.log(this.internals_.shadowRoot); // a ShadowRoot object
}
}
Specifications
Specification |
---|
HTML Standard # dom-elementinternals-shadowroot |
Browser compatibility
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