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DOM - Element Object
  • 时间:2024-11-03

DOM - Element Object


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可将XML要素定义为XML的组成部分。 部件可以作为集装箱持有文字、内容、属性、媒体目标或所有这些内容。 每当教区划出一项XML文件,反对知情,教区则通过一个要素节点。 内容节点载有案文,称为案文节点。

元素物继承了诺德物体的特性和方法,作为元素物也被视为诺德。 除文物性质和方法外,还有以下财产和方法。

Properties

下表列出了 Element 反对的属性:

Attribute Type Description
tagName DOMString It gives the name of the tag for the specified element.
schemaTypeInfo TypeInfo It represents the type information associated with this element. This has been removed. Refer specs.

Methods

下表列出了要素目标方法——

Methods Type Description
getAttribute() DOMString Retrieves the value of the attribute if exists for the specified element.
getAttributeNS() DOMString Retrieves an attribute value by local name and namespace URI.
getAttributeNode() Attr Retrieves the name of the attribute node from the current element.
getAttributeNodeNS() Attr Retrieves an Attr node by local name and namespace URI.
getElementsByTagName() NodeList Returns a NodeList of all descendant Elements with a given tag name, in document order.
getElementsByTagNameNS() NodeList Returns a NodeList of all the descendant Elements with a given local name and namespace URI in document order.
hasAttribute() boolean Returns true when an attribute with a given name is specified on this element or has a default value, false otherwise.
hasAttributeNS() boolean Returns true when an attribute with a given local name and namespace URI is specified on this element or has a default value, false otherwise.
removeAttribute() No Return Value Removes an attribute by name.
removeAttributeNS No Return Value Removes an attribute by local name and namespace URI.
removeAttributeNode() Attr Specified attribute node is removed from the element.
setAttribute() No Return Value Sets a new attribute value to the existing element.
setAttributeNS() No Return Value Adds a new attribute. If an attribute with the same local name and namespace URI is already present on the element, its prefix is changed to be the prefix part of the quapfiedName, and its value is changed to be the value parameter.
setAttributeNode() Attr Sets a new attribute node to the existing element.
setAttributeNodeNS Attr Adds a new attribute. If an attribute with that local name and that namespace URI is already present in the element, it is replaced by the new one.
setIdAttribute No Return Value If the parameter isId is true, this method declares the specified attribute to be a user-determined ID attribute. This has been removed. Refer specs.
setIdAttributeNS No Return Value If the parameter isId is true, this method declares the specified attribute to be a user-determined ID attribute. This has been removed. Refer specs.
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