Element: slot property
The slot
property of the Element
interface
returns the name of the shadow DOM slot the element is inserted in.
A slot is a placeholder inside a web component that users can fill with their own markup (see Using templates and slots for more information).
Value
A string.
Examples
In our simple-template example (see it live), we create a trivial custom element example called
<my-paragraph>
in which a shadow root is attached and then populated
using the contents of a template that contains a slot named my-text
.
When <my-paragraph>
is used in the document, the slot is populated
by a slottable element by including it inside the element with a
slot
attribute
with the value my-text
. Here is one such example:
html
<my-paragraph>
<span slot="my-text">Let's have some different text!</span>
</my-paragraph>
In our JavaScript file we get a reference to the <span>
shown above,
then log a reference to the name of the corresponding <slot>
element.
js
let slottedSpan = document.querySelector("my-paragraph span");
console.log(slottedSpan.slot); // logs 'my-text'
Specifications
Specification |
---|
DOM Standard # ref-for-dom-element-slot① |
Browser compatibility
BCD tables only load in the browser