CharacterData

CharacterData 抽象接口（abstract interface）代表 Node 对象包含的字符。这是一个抽象接口，意味着没有 CharacterData 类型的对象。 它是在其他接口中被实现的，如 Text、Comment 或 ProcessingInstruction 这些非抽象接口。

属性

从其父级 Node 继承属性，并且实现了 ChildNode 和 NonDocumentTypeChildNode 接口。

CharacterData.data

一个 DOMString，表示该对象中包含的文本数据。

CharacterData.length 只读

返回一个 unsigned long 的表示 CharacterData.data 包含的字符串的大小。

NonDocumentTypeChildNode.nextElementSibling 只读

返回其父节点所在的子节点列表（children list）中紧跟着的元素节点 Element，或者 null。

NonDocumentTypeChildNode.previousElementSibling 只读

返回其父节点所在的子节点列表（children list）中前一个元素节点 Element，或者 null。

方法

Inherits methods from its parent, Node, and implements the ChildNode and NonDocumentTypeChildNode interface.

CharacterData.appendData()

Appends the given DOMString to the CharacterData.data string; when this method returns, data contains the concatenated DOMString.

CharacterData.deleteData()

Removes the specified amount of characters, starting at the specified offset, from the CharacterData.data string; when this method returns, data contains the shortened DOMString.

CharacterData.insertData()

Inserts the specified characters, at the specified offset, in the CharacterData.data string; when this method returns, data contains the modified DOMString.

ChildNode.remove()

Removes the object from its parent children list.

CharacterData.replaceData()

Replaces the specified amount of characters, starting at the specified offset, with the specified DOMString; when this method returns, data contains the modified DOMString.

CharacterData.substringData()

Returns a DOMString containing the part of CharacterData.data of the specified length and starting at the specified offset.

规范

浏览器兼容性

[1] Two properties, nextElementSibling and previousElementSibling, have been moved to the NonDocumentTypeChildNode interface, also implemented by CharacterData.

相关链接

• The DOM interfaces index.