Node:ownerDocument 属性
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
Node
接口的只读属性 ownerDocument
会返回该节点所属的顶层 document 对象。
值
一个 Document
,是所有子节点都在其中创建的顶层对象。
如果在文档节点自身上使用此属性,则值为 null
。
示例
js
// 给定一个节点 "p",获取文档对象的顶级 HTML 子元素
const d = p.ownerDocument;
const html = d.documentElement;
规范
Specification |
---|
DOM # ref-for-dom-node-ownerdocument① |