Theslot property of theElement interfacereturns the name of the shadow DOM slot the element is inserted in.

A slot is a placeholder inside aweb component that users can fill with their own markup (seeUsing templates and slots for more information).

Value

A string.

Examples

In oursimple-template example (see it live), we create a trivial custom element example called<my-paragraph> in which a shadow root is attached and then populatedusing the contents of a template that contains a slot namedmy-text.

When<my-paragraph> is used in the document, the slot is populatedby a slottable element by including it inside the element with aslot attributewith the valuemy-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<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

Browser compatibility