DOM notes (3): Element interface and HTMLElement interface_html/css

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Jun 24, 2016 am 11:52 AM

1. Element interface

The Element interface represents an element. This interface extends from the Node interface and naturally inherits the attributes and methods of the Node interface. It also has a set of attributes and methods for elements. method.

There are relatively few common attributes in the Element interface. The commonly used attribute is a read-only tagName attribute, which returns the element name and the data type is DOMString.

The methods defined by the Element interface are mainly for attribute operations. Common methods are as follows:

方法名	数据类型	说明
getAttribute	DOMString	返回对应属性
getAttributeNode	Attr	返回对应属性节点
getAttributeNodeNS	Attr	返回属性命名空间
getAttributeNS	DOMString	返回对应属性节点
getElementsByTagName	NodeList	节点名获取元素列表
getElementsByTagNameNS	NodeList	根据指定空间内的标签名搜索所有元素
hasAttribute	Boolean	判断属性是否存在
hasAttributeNS	Boolean	判断属性是否存在
removeAttribute	void	删除属性
removeAttributeNode	Attr	删除属性
removeAttributeNS	void	删除属性
setAttribute	void	添加属性
setAttributeNode	Attr	添加属性节点
setAttributeNodeNS	Attr	添加属性节点
setAttributeNS	void	添加属性

2. HTMLElement interface

This interface is inherited from the Element interface and is also used to represent an HTML element with custom properties and methods.

1. Attribute list

属性名	数据类型	只读	说明
innerHTML	DOMString		获取或设置HTML内容
outerHTML	DOMString		设置或获取对象的纯文本形式
id	DOMString		对应元素的id属性
title	DOMString		对应元素的title属性
lang	DOMString		对应元素的lang属性
dir	DOMString		对应元素的dir属性
className	DOMString		对应元素的class属性
classList	DOMTokeList	Y	返回元素的class属性作为DOMTokenList对象
dataset	DOMStringMap	Y	返回自定义的data-*属性集合
hidden	Boolean		对应元素的hidden属性
tabIndex	long		对应元素的tabIndex属性
accessKey	DOMString		对应元素的accessKey属性
accessKeyLabel	DOMString	Y	返回热键组合
draggable	Boolean		对应元素的draggable属性
contentEditable	DOMString		对应元素的contentEditable属性
isContentEditable	Boolean	Y	判断元素是否可用编辑
contextMenu	HTMLMenuElement		对应元素的contextMenu属性
spellcheck	DOMString		对应元素的spellcheck属性
commandType	DOMString	Y	对应元素的commandType属性
label	DOMString	Y	对应元素的label属性
icon	DOMString	Y	对应元素的icon属性
disabled	Boolean	Y	对应元素的disabled属性
checked	Boolean	Y	对应元素的checked属性
style	CSSStyleDeclaration	Y	对应元素的style属性

2. Method list

方法名	数据类型	说明
getElementsByClassName	NodeList	根据元素的class属性获取所有元素
insertAdjacentHTML	void	在指定位置插入HTML或XML
click	void	单击元素，触发click事件
scrollIntoView	void	滚动元素内容到视点内
focus	void	元素获取焦点
blur	void	元素失去焦点

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