Element.openOrClosedShadowRoot

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草案
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非标准
该特性是非标准的,请尽量不要在生产环境中使用它!

Note: This API is available only to WebExtensions.

Element.openOrCloseShadowRoot 是一个只读属性。represents the shadow root hosted by the element, regardless if its mode is open or closed. Use Element.attachShadow() to add a shadow root to an existing element.

Syntax

var shadowroot = element.shadowRoot; 

Value

A ShadowRoot object instance, regardless if its mode is set to open or closed, or null if no shadow root is present. (See Element.attachShadow() for further details).

Specifications

This property is not part of any specification.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
openOrClosedShadowRoot
Non-standard
Chrome No support NoEdge No support NoFirefox Full support 63
Notes
Full support 63
Notes
Notes Available only to WebExtensions.
IE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoFirefox Android Full support 63
Notes
Full support 63
Notes
Notes Available only to WebExtensions.
Opera Android No support NoSafari iOS No support NoSamsung Internet Android No support No

Legend

Full support  
Full support
No support  
No support
Non-standard. Expect poor cross-browser support.
Non-standard. Expect poor cross-browser support.
See implementation notes.
See implementation notes.

See also