Element: slot property
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020.
Thuộc tính slot của giao diện Element
trả về 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 [Sử dụng templates and slots](/vi/docs/Web/API/Web_components/Sử dụng_templates_and_slots) for more information).
Giá trị
Một chuỗi.
Ví dụ
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 chứa 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 <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'
Đặc tả kỹ thuật
| Specification |
|---|
| DOM # ref-for-dom-element-slot① |