HTMLAnchorElement - Web API 接口参考 编辑

HTMLAnchorElement 接口表示超链接元素，并提供一些特别的属性和方法（除了那些继承自普通 HTMLElement对象接口的之外）以用于操作这些元素的布局和显示。

属性（Properties）

继承其父类 HTMLElement 的属性，并实现 URLUtils 中（定义）的（属性）。

HTMLAnchorElement.accessKey

是一个代表了单个字符的 DOMString，单个字符可以切换输入焦点到超链接。

HTMLAnchorElement.charset

Is a DOMString representing the character encoding of the linked resource.

HTMLAnchorElement.coords

Is a DOMString representing a comma-separated list of coordinates.

HTMLAnchorElement.download

Is a DOMString indicating that the linked resource is intended to be downloaded rather than displayed in the browser. The value represent the proposed name of the file. If the name is not a valid filename of the underlying OS, browser will adapt it. The value is a URL with a scheme like http:, file:, data: or even blob: (created with URL.createObjectURL).

URLUtils.hash

Is a DOMString representing the fragment identifier, including the leading hash mark ('#'), if any, in the referenced URL.

URLUtils.host

Is a DOMString representing the hostname and port (if it's not the default port) in the referenced URL.

URLUtils.hostname

Is a DOMString representing the hostname in the referenced URL.

URLUtils.href

Is a DOMString that reflects the href HTML attribute, containing a valid URL of a linked resource.

HTMLAnchorElement.hreflang

Is a DOMString that reflects the hreflang HTML attribute, indicating the language of the linked resource.

HTMLAnchorElement.media

Is a DOMString that reflects the media HTML attribute, indicating the intended media for the linked resource.

HTMLAnchorElement.name

Is a DOMString representing the anchor name.

URLUtils.passport

Is a DOMString 包含指定域名的密码。

URLUtils.origin 只读

Returns a DOMString containing the origin of the URL, that is its scheme, its domain and its port.

URLUtils.pathname

Is a DOMString representing the path name component, if any, of the referenced URL.

URLUtils.port

Is a DOMString representing the port component, if any, of the referenced URL.

URLUtils.protocol

Is a DOMString representing the protocol component, including trailing colon (':'), of the referenced URL.

HTMLAnchorElement.rel

Is a DOMString that reflects the rel HTML attribute, specifying the relationship of the target object to the linked object.

HTMLAnchorElement.relList 只读

Returns a DOMTokenList that reflects the rel HTML attribute, as a list of tokens.

HTMLAnchorElement.rev

Is a DOMString representing that the rev HTML attribute, specifying the relationship of the link object to the target object.

URLUtils.search

Is a DOMString representing tThe search element, including leading question mark ('?'), if any, of the referenced URL.

HTMLAnchorElement.shape

Is a DOMString representing the shape of the active area.

HTMLAnchorElement.tabindex

Is a long containing the position of the element in the tabbing navigation order for the current document.

HTMLAnchorElement.target

Is a DOMString that reflects the target HTML attribute, indicating where to display the linked resource.

HTMLAnchorElement.text

Is a DOMString being a synonym for the Node.textContent property.

HTMLAnchorElement.type

Is a DOMString that reflects the type HTML attribute, indicating the MIME type of the linked resource.

URLUtils.username

Is a DOMString containing the username specified before the domain name.

Methods

Inherits methods from its parent, HTMLElement, and implements those from URLUtils.

HTMLElement.blur()

Removes the  keyboard focus from the current element.

HTMLElement.focus()

Gives the keyboard focus to the current element.

URLUtils.toString()

Returns a DOMString containing the whole URL. It is a synonym for URLUtils.href, though it can't be used to modify the value.

The blur() and focus() methods are inherited from HTMLElement from HTML5 on, but were defined on HTMLAnchorElement in DOM Level 2 HTML and earlier specifications.

Specifications

Specification	Status	Comment
HTML Living Standard HTMLAnchorElement	Living Standard	The following property has been added: download. Technically, the URL-related properties, media, host, hostname, pathname, port, protocol, search, and hash, have been moved to the URLUtils interface, and HTMLAreaElement implements this interface.
HTML5 HTMLAnchorElement	Recommendation	The methods blur() and focus(), as well as the properties tabindex and accessKey, are now defined on HTMLElement. The following properties are now obsolete: charset, coords, name, rev, and shape. The following properties have been added: hash, host, hostname, media, pathname, port, protocol, relList, search, and text.
Document Object Model (DOM) Level 2 HTML Specification HTMLAnchorElement	Obsolete	No change from Document Object Model (DOM) Level 1 Specification.
Document Object Model (DOM) Level 1 Specification HTMLAnchorElement	Obsolete	Initial definition.

Browser compatibility

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

• Desktop
• Mobile

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari (WebKit)
Basic support	(Yes)	1.0 (1.7 or earlier)	(Yes)	(Yes)	(Yes)
download	14	20	?	15	?
username, password, and origin	?	26.0 (26.0)	?	?	?

Feature	Android	Firefox Mobile (Gecko)	IE Phone	Opera Mobile	Safari Mobile
Basic support	(Yes)	1.0 (1.0)	(Yes)	(Yes)	(Yes)
download	?	?	?	?	?
username, password, and origin	?	26.0 (26.0)	?	?	?

See also

• The HTML element implementing this interface: <a>