HTML DOM 元素

元素对象

在 HTML DOM 中，元素对象表示 HTML 元素，如 P、DIV、A、TABLE 或任何其他 HTML 元素。

属性和方法

以下属性和方法可用于所有 HTML 元素：

Property / Method	Description
accessKey	Sets or returns the accesskey attribute of an element
addEventListener()	Attaches an event handler to an element
appendChild()	Adds (appends) a new child node to an element
attributes	Returns a NamedNodeMap of an element's attributes
blur()	Removes focus from an element
childElementCount	Returns an elements's number of child elements
childNodes	Returns a NodeList of an element's child nodes
children	Returns an HTMLCollection of an element's child elements
classList	Returns the class name(s) of an element
className	Sets or returns the value of the class attribute of an element
click()	Simulates a mouse-click on an element
clientHeight	Returns the height of an element, including padding
clientLeft	Returns the width of the left border of an element
clientTop	Returns the width of the top border of an element
clientWidth	Returns the width of an element, including padding
cloneNode()	Clones an element
closest()	Searches the DOM tree for the closest element that matches a CSS selector
compareDocumentPosition()	Compares the document position of two elements
contains()	Returns true if a node is a descendant of a node
contentEditable	Sets or returns whether the content of an element is editable or not
dir	Sets or returns the value of the dir attribute of an element
firstChild	Returns the first child node of an element
firstElementChild	Returns the first child element of an element
focus()	Gives focus to an element
getAttribute()	Returns the value of an element's attribute
getAttributeNode()	Returns an attribute node
getBoundingClientRect()	Returns the size of an element and its position relative to the viewport
getElementsByClassName()	Returns a collection of child elements with a given class name
getElementsByTagName()	Returns a collection of child elements with a given tag name
hasAttribute()	Returns true if an element has a given attribute
hasAttributes()	Returns true if an element has any attributes
hasChildNodes()	Returns true if an element has any child nodes
id	Sets or returns the value of the id attribute of an element
innerHTML	Sets or returns the content of an element
innerText	Sets or returns the text content of a node and its descendants
insertAdjacentElement()	Inserts a new HTML element at a position relative to an element
insertAdjacentHTML()	Inserts an HTML formatted text at a position relative to an element
insertAdjacentText()	Inserts text into a position relative to an element
insertBefore()	Inserts a new child node before an existing child node
isContentEditable	Returns true if an element's content is editable
isDefaultNamespace()	Returns true if a given namespaceURI is the default
isEqualNode()	Checks if two elements are equal
isSameNode()	Checks if two elements are the same node
isSupported()	Deprecated
lang	Sets or returns the value of the lang attribute of an element
lastChild	Returns the last child node of an element
lastElementChild	Returns the last child element of an element
matches()	Returns true if an element is matched by a given CSS selector
namespaceURI	Returns the namespace URI of an element
nextSibling	Returns the next node at the same node tree level
nextElementSibling	Returns the next element at the same node tree level
nodeName	Returns the name of a node
nodeType	Returns the node type of a node
nodeValue	Sets or returns the value of a node
normalize()	Joins adjacent text nodes and removes empty text nodes in an element
offsetHeight	Returns the height of an element, including padding, border and scrollbar
offsetWidth	Returns the width of an element, including padding, border and scrollbar
offsetLeft	Returns the horizontal offset position of an element
offsetParent	Returns the offset container of an element
offsetTop	Returns the vertical offset position of an element
outerHTML	Sets or returns the content of an element (including the start tag and the end tag)
outerText	Sets or returns the outer text content of a node and its descendants
ownerDocument	Returns the root element (document object) for an element
parentNode	Returns the parent node of an element
parentElement	Returns the parent element node of an element
previousSibling	Returns the previous node at the same node tree level
previousElementSibling	Returns the previous element at the same node tree level
querySelector()	Returns the first child element that matches a CSS selector(s)
querySelectorAll()	Returns all child elements that matches a CSS selector(s)
remove()	Removes an element from the DOM
removeAttribute()	Removes an attribute from an element
removeAttributeNode()	Removes an attribute node, and returns the removed node
removeChild()	Removes a child node from an element
removeEventListener()	Removes an event handler that has been attached with the addEventListener() method
replaceChild()	Replaces a child node in an element
scrollHeight	Returns the entire height of an element, including padding
scrollIntoView()	Scrolls the an element into the visible area of the browser window
scrollLeft	Sets or returns the number of pixels an element's content is scrolled horizontally
scrollTop	Sets or returns the number of pixels an element's content is scrolled vertically
scrollWidth	Returns the entire width of an element, including padding
setAttribute()	Sets or changes an attribute's value
setAttributeNode()	Sets or changes an attribute node
style	Sets or returns the value of the style attribute of an element
tabIndex	Sets or returns the value of the tabindex attribute of an element
tagName	Returns the tag name of an element
textContent	Sets or returns the textual content of a node and its descendants
title	Sets or returns the value of the title attribute of an element
toString()	Converts an element to a string