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DocumentType 介面表示了一個代表文件類型的 Node 節點。
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a:hover text { fill: #0095DD; pointer-events: all;}
屬性
此介面繼承了其父介面 Node 的屬性，以及實作了 ChildNode 介面。
DocumentType.entitiesRead only- A
NamedNodeMapof entities declared in the DTD. Every node in this map implements theEntityinterface. DocumentType.internalSubsetRead only- A
DOMStringof the internal subset, ornullif there is none. Eg"<!ELEMENT foo (bar)>". DocumentType.nameRead only- A
DOMString, eg"html"for<!DOCTYPE HTML>. DocumentType.notationsRead only- A
NamedNodeMapwith notations declared in the DTD. Every node in this map implements theNotationinterface. DocumentType.publicIdRead only- A
DOMString, eg"-//W3C//DTD HTML 4.01//EN", empty string for HTML5. DocumentType.systemIdRead only- A
DOMString, eg"http://www.w3.org/TR/html4/strict.dtd", empty string for HTML5.
方法
此介面繼承了其父介面 Node 的方法，以及實作了 ChildNode 介面。
ChildNode.remove()- Removes the object from its parent children list.
規範
| Specification | Status | Comment |
|---|---|---|
| DOM The definition of 'DocumentType' in that specification. |
Living Standard | Added implemention of the ChildNode interface.Removed the internalSubset, entities, and notation properties. |
| Document Object Model (DOM) Level 3 Core Specification The definition of 'DocumentType' in that specification. |
Obsolete | No change from Document Object Model (DOM) Level 2 Core Specification. |
| Document Object Model (DOM) Level 2 Core Specification The definition of 'DocumentType' in that specification. |
Obsolete | Added the publicID, systemID, and internalSubset properties. |
| Document Object Model (DOM) Level 1 Specification The definition of 'DocumentType' in that specification. |
Obsolete | Initial definition |
瀏覽器相容性
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 | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | 1.0 | (Yes) | 1.0 (1.7 or earlier) | (Yes) | (Yes) | (Yes) |
entities and notations |
1.0[1] | (Yes)[3] | 1.0 (1.7 or earlier) No support6.0 (6.0) |
(Yes)[3] | (Yes)[1] | (Yes) |
internalSubset |
? | (Yes) | No support (not anymore in any case) | (Yes) | ? | ? |
Implements ChildNode |
29.0 | (Yes) | 25.0 (25.0)[2] | No support | 16.0 | No support |
| Feature | Android | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | 1.0 (1.0) | (Yes) | (Yes) | (Yes) |
entities and notations |
(Yes)[1] | (Yes) | 1.0 (1.0) No support6.0 (6.0) |
? | (Yes) | (Yes) |
internalSubset |
? | ? | ? | ? | ? | ? |
Implements ChildNode |
(Yes) | (Yes) | 25.0 (25.0)[2] | No support | 16.0 | No support |
[1] The Chromium project plans to drop supports for the internalSubset, entities and notations methods.
[2] Firefox 25 also added the previousElementSibling and nextElementSibling properties, this was removed in Firefox 28 due to compatibility problems.
[3] entities and notations properties exist in IE and Edge, but seem to always be null?