DocumentType 接口表示了一个包含文档类型的节点 Node .
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属性
继承自父节点 Node, 并实现了 ChildNode 接口.
DocumentType.entities只读- 一个在文档类型定义(DTD)中声明的实体
NamedNodeMap，在这个映射（map）中的每个节点实现了Entity接口 DocumentType.internalSubset只读- 一个表示内部子集的
DOMString，如果没有的话则为null，例："<!ELEMENT foo (bar)>" DocumentType.name只读DOMString，文档类型的名称，例：<!DOCTYPE HTML>中的“html”DocumentType.notations只读- 在文档类型定义（DTD）中声明符号的
NamedNodeMap，在这个映射（map）中的所有节点实现了Notation接口 DocumentType.publicId只读- 一个
DOMString，例：HTML5中的空字符串——"-//W3C//DTD HTML 4.01//EN"。 DocumentType.systemId只读- 一个
DOMString，例：HTML5中的空字符串——"http://www.w3.org/TR/html4/strict.dtd"。
方法
继承方法自父节点,Node, 并实现了 ChildNode 接口.
ChildNode.remove()- 从父节点的子节点的列表中移除这个对象.
规范
| Specification | Status | Comment |
|---|---|---|
| DOM DocumentType |
Living Standard | Added implemention of the ChildNode interface.Removed the internalSubset, entities, and notation properties. |
| Document Object Model (DOM) Level 3 Core Specification DocumentType |
Obsolete | No change from Document Object Model (DOM) Level 2 Core Specification. |
| Document Object Model (DOM) Level 2 Core Specification CharacterData |
Obsolete | Added the publicID, systemID, and internalSubset properties. |
| Document Object Model (DOM) Level 1 Specification CharacterData |
Obsolete | Initial definition |
浏览器兼容性
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
DocumentType | Chrome Full support Yes | Edge Full support 12 | Firefox Full support 1 | IE Full support Yes | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Firefox Android Full support 4 | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
entities | Chrome No support No | Edge No support 12 — 79 | Firefox No support 1 — 6 | IE No support No | Opera No support No | Safari No support No | WebView Android No support No | Chrome Android No support No | Firefox Android No support 4 — 6 | Opera Android No support No | Safari iOS No support No | Samsung Internet Android No support No |
internalSubset | Chrome No support No | Edge No support 12 — 79 | Firefox No support No | IE No support No | Opera No support No | Safari No support No | WebView Android No support No | Chrome Android No support No | Firefox Android No support No | Opera Android No support No | Safari iOS No support No | Samsung Internet Android No support No |
name | Chrome Full support Yes | Edge Full support 12 | Firefox Full support 1 | IE Full support Yes | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Firefox Android Full support 4 | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
notations | Chrome No support No | Edge No support 12 — 79 | Firefox No support 1 — 6 | IE No support No | Opera No support No | Safari No support No | WebView Android No support No | Chrome Android No support No | Firefox Android No support 4 — 6 | Opera Android No support No | Safari iOS No support No | Samsung Internet Android No support No |
publicId | Chrome Full support Yes | Edge Full support 12 | Firefox Full support 1 | IE Full support Yes | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Firefox Android Full support 4 | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
systemId | Chrome Full support Yes | Edge Full support 12 | Firefox Full support 1 | IE Full support Yes | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Firefox Android Full support 4 | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
Legend
- Full support
- Full support
- No support
- No support
- Non-standard. Expect poor cross-browser support.
- Non-standard. Expect poor cross-browser support.
- Deprecated. Not for use in new websites.
- Deprecated. Not for use in new websites.