files/en-us/web/api/element/slot/index.md
{{APIRef("Shadow DOM")}}
The slot property of the {{domxref("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).
A string.
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:
<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 {{htmlelement("span")}} shown above,
then log a reference to the name of the corresponding <slot> element.
let slottedSpan = document.querySelector("my-paragraph span");
console.log(slottedSpan.slot); // logs 'my-text'
{{Specifications}}
{{Compat}}