This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

The slot property of the Element interface returns the name of the shadow DOM slot attatched to the element. A slot is a placeholder inside a web component that users can fill with their own markup.


var aString = element.slot
element.slot = aString


A DOMString.


Specification Status Comment
Shadow DOM
The definition of 'slot' in that specification.
Working Draft Initial definition.

Browser Compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 53.0 ? ? ? ?
Feature Android Android Webview Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support No support 53.0 ? ? ? ? ? 53.0


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API Element Property Reference shadow dom slot