Range.extractContents() 方法移动了Range 中的内容从文档树到DocumentFragment（文档片段对象）。
Event Listeners added using DOM Events are not retained during extraction. HTML attribute events are retained or duplicated as they are for the Node.cloneNode() method. HTML id attributes are also cloned, which can lead to an invalid document if a partially-selected node is extracted and appended to the document.
Partially selected nodes are cloned to include the parent tags necessary to make the document fragment valid.
Syntax
documentFragment = range.extractContents();
Example
var range = document.createRange();
range.selectNode(document.getElementsByTagName("div").item(0));
var documentFragment = range.extractContents();
document.body.appendChild(documentFragment);
Specifications
| Specification | Status | Comment |
|---|---|---|
| DOM Range.extractContents() |
Living Standard | No change. |
| Document Object Model (DOM) Level 2 Traversal and Range Specification Range.extractContents() |
Obsolete | Initial specification. |
Browser compatibility
We're converting our compatibility data into a machine-readable JSON format.
This compatibility table still uses the old format,
because we haven't yet converted the data it contains.
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| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | (Yes) | 1.0 (1.7 or earlier) | 9.0 | 9.0 | (Yes) |
| Feature | Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
| Basic support | (Yes) | 1.0 (1.0) | 9.0 | 9.0 | (Yes) |