nsIDOMElement 编辑

dom/interfaces/core/nsIDOMElement.idlScriptable This interface represents an element in an HTML or XML document. Inherits from: nsIDOMNode Last changed in Gecko 1.7

Method overview

DOMString getAttribute(in DOMString name);

nsIDOMAttr getAttributeNode(in DOMString name);

nsIDOMAttr getAttributeNodeNS(in DOMString namespaceURI, in DOMString localName);

DOMString getAttributeNS(in DOMString namespaceURI, in DOMString localName);

nsIDOMNodeList getElementsByTagName(in DOMString name);

nsIDOMNodeList getElementsByTagNameNS(in DOMString namespaceURI, in DOMString localName);

boolean hasAttribute(in DOMString name);

boolean hasAttributeNS(in DOMString namespaceURI, in DOMString localName);

void removeAttribute(in DOMString name)

nsIDOMAttr removeAttributeNode(in nsIDOMAttr oldAttr)

void removeAttributeNS(in DOMString namespaceURI, in DOMString localName)

void setAttribute(in DOMString name, in DOMString value)

nsIDOMAttr setAttributeNode(in nsIDOMAttr newAttr)

nsIDOMAttr setAttributeNodeNS(in nsIDOMAttr newAttr)

void setAttributeNS(in DOMString namespaceURI, in DOMString qualifiedName, in DOMString value)

Attributes

Attribute	Type	Description
tagName	DOMString	The element tag name. Read only.

Methods

getAttribute()

Get an attribute value.

DOMString getAttribute(
  in DOMString name
);

Parameters

name

Attribute name

Return value

A DOMString containing the attribute value.

getAttributeNode()

Get an attribute node.

nsIDOMAttr getAttributeNode(
  in DOMString name
);

Parameters

name

Attribute name

Return value

A nsIDOMAttr corresponding to the attribute.

getAttributeNodeNS()

Get an attribute node in a given namespace.

nsIDOMAttr getAttributeNodeNS(
  in DOMString namespaceURI,
  in DOMString localName
);

Parameters

namespaceURI

Namespace URI

localName

Attribute name

Return value

A nsIDOMAttr corresponding to the attribute.

getAttributeNS()

Get an attribute value in a given namespace.

DOMString getAttributeNS(
  in DOMString namespaceURI,
  in DOMString localName
);

Parameters

namespaceURI

Namespace URI

localName

Attribute name

Return value

A DOMString containing the attribute value.

getElementsByTagName()

Get all descendants of a tag name.

nsIDOMNodeList getElementsByTagName(
  in DOMString name
);

Parameters

name

Tag name

Return value

A nsIDOMNodeList containg all the descendants of this tag name.

getElementsByTagNameNS()

Get all descendants of a tag name in a given namespace.

nsIDOMNodeList getElementsByTagNameNS(
  in DOMString namespaceURI,
  in DOMString localName
);

Parameters

namespaceURI

Namespace URI

localName

Tag name

Return value

A nsIDOMNodeList containg all the descendants of this tag name.

hasAttribute()

Check if the element have this attribute set.

boolean hasAttribute(
  in DOMString name
);

Parameters

name

Attribute name

Return value

A boolean, true if the given attribute is set.

hasAttributeNS()

Check if the element for a given namespace have this attribute set.

boolean hasAttributeNS(
  in DOMString namespaceURI,
  in DOMString localName
);

Parameters

namespaceURI

Namespace URI

localName

Attribute name

Return value

A boolean, true if the given attribute is set.

removeAttribute()

Remove an attribute.

void removeAttribute(
  in DOMString name
);

Parameters

name

Attribute name

removeAttributeNode()

Remove an attribute, giving the attribute node.

nsIDOMAttr removeAttributeNode(
  in nsIDOMAttr oldAttr
);

Parameters

oldAttr

Attribute node to remove

Return value

A nsIDOMAttr corresponding to the removed attribute node.

removeAttributeNS()

Remove an attribute.

void removeAttributeNS(
  in DOMString namespaceURI,
  in DOMString localName
);

Parameters

namespaceURI

Namespace URI

localName

Tag name

setAttribute()

Set an attribute.

void setAttribute(
  in DOMString name,
  in DOMString value
);

Parameters

name

Attribute name

value

Attribute new value

setAttributeNode()

Set an attribute, giving the attribute node.

nsIDOMAttr setAttributeNode(
  in nsIDOMAttr newAttr
);

Parameters

newAttr

Attribute node.

Return value

A nsIDOMAttr corresponding to the attribute node added.

setAttributeNodeNS()

Set an attribute, giving the attribute node.

nsIDOMAttr setAttributeNodeNS(
  in nsIDOMAttr newAttr
);

Parameters

newAttr

Attribute node.

Return value

A nsIDOMAttr corresponding to the attribute node added.

setAttributeNS()

Set an attribute.

void setAttributeNS(
  in DOMString namespaceURI,
  in DOMString qualifiedName,
  in DOMString value
);

Parameters

namespaceURI

Namespace URI

qualifiedName

Attribute name

value

Attribute new value

See also

• http://www.w3.org/TR/DOM-Level-2-Core/