ShadowRoot.delegatesFocus

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.

ShadowRoot 接口中的只读属性 delegatesFocus 返回一个布尔值表明 delegatesFocus 是否在 shadow 被附加的时候设置了。

这目前是一个实验的非标准特性,仅在 Chrome 中可用。

语法

var df = shadowRoot.delegatesFocus

一个布尔值 — true 值表明 shadow root 已经 delegate focus, false 反之。

示例

js
let customElem = document.querySelector('my-shadow-dom-element');
let shadow = customElem.shadowRoot;

  ...

// Does it delegate focus?
let hostElem = shadow.delegatesFocus;

标准

这目前是个非标准特性。

浏览器兼容性

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
delegatesFocus

Legend

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Full support
Full support