Range.cloneContents()

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2017.

Range.cloneContents() 返回一个 DocumentFragment，它是 Range 中所有的 Node 对象的副本。

使用" DOM 事件"添加的“事件侦听器”在克隆过程中不会被复制。HTML 属性事件与“DOM Core cloneNode”方法一样被复制。“HTML id 属性”也将被克隆，这可能导致通过克隆导致无效的文档。

Partially selected nodes include the parent tags necessary to make the document fragment valid.

语法

documentFragment = range.cloneContents();

例子

js
range = document.createRange();
range.selectNode(document.getElementsByTagName("div").item(0));
documentFragment = range.cloneContents();
document.body.appendChild(documentFragment);

规范

Specification
DOM Standard
# dom-range-clonecontents

浏览器兼容性

BCD tables only load in the browser

参考