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UIEvent — class, package dom.events
The UIEvent interface provides specific contextual information associated with User Interface events.
unescape(escaped:dom.core.types:DOMString) — method, class dom.Window
DOM Level 0 Decodes a value that has been encoded in hexadecimal (e.g., a cookie).
unicodeBidi — Property, interface dom.style.css.CSS2Properties
uniqueID — Property, class dom.html.HTMLDocument
Retrieves an autogenerated, unique identifier for the object.
UNKNOWN_RULE — Constant Property, class dom.style.css.CSSRule
The rule is a CSSUnknownRule.
unload — Event, class dom.core.Document
The DOM implementation removes from the environment the resource (such as the document) or any dependent resources (such as images, style sheets, scripts).
unload — Event, class dom.core.Element
The DOM implementation removes from the environment the resource (such as the document) or any dependent resources (such as images, style sheets, scripts).
unload — Constant Static Property, class dom.events.Event
The DOM implementation removes from the environment the resource (such as the document) or any dependent resources (such as images, style sheets, scripts).
unload — Constant Static Property, class dom.events.UIEvent
The DOM implementation removes from the environment the resource (such as the document) or any dependent resources (such as images, style sheets, scripts).
UNORDERED_NODE_ITERATOR_TYPE — Constant Static Property, class dom.xpath.XPathResult
The result is a node set as defined by [XPath 1.0] that will be accessed iteratively, which may not produce nodes in a particular order.
UNORDERED_NODE_SNAPSHOT_TYPE — Constant Static Property, class dom.xpath.XPathResult
The result is a node set as defined by [XPath 1.0] that will be accessed as a snapshot list of nodes that may not be in a particular order.
UNSPECIFIED_EVENT_TYPE_ERR — Constant Static Property, class dom.events.EventExceptionCode
If the Event.type was not specified by initializing the event before the method was called.
updateCommands(commandName:dom.core.types:DOMString) — method, class dom.Window
DOM Level 0 Updates the state of commands of the current chrome window (UI).
updateSettings() — method, class dom.core.Document
Allows updating the print settings for the page.
uri — Property, interface dom.core.DOMLocator
The URI this locator is pointing to, or null if no URI is available.
uri — Property, class webstorage.StorageEvent
The URL of the page that changed the field.
url — Property, class webstorage.StorageEvent
The address of the document whose key changed.
URL — Property, class dom.html.HTMLDocument
Returns the URL of the current document.
URLUnencoded — Property, class dom.html.HTMLDocument
Gets the URL for the document, stripped of any character encoding.
urns(urn:dom.core.types:DOMString) — method, class dom.html.objects.HTMLCollection
Retrieves a collection of all objects to which a specified behavior is attached.
useMap — Property, class dom.html.HTMLImageElement
Use client-side image map.
useMap — Property, class dom.html.HTMLInputElement
Use client-side image map.
useMap — Property, class dom.html.HTMLObjectElement
Use client-side image map.
userAgent — Property, class dom.objects.Navigator
Returns the user agent string for the current browser.
userAgent — Property, interface dom.objects.NavigatorID
Returns the user agent string for the current browser.
UserDataHandler — class, package dom.core
When associating user data with a key on a node, Node.setUserData() can also accept, in its third argument, a handler which will be called when the object is cloned, imported, deleted, renamed, or adopted.
userLanguage — Property, class dom.objects.Navigator
Retrieves the operating system's natural language setting.
username — Property, class gecko.nsIURI
The optional username, assuming the preHost consists of "username:password".
userPass — Property, class gecko.nsIURI
The "username:password" (or username only if the value doesn't contain a ':').
userProfile — Property, class dom.objects.Navigator
Provides methods that allow a script to request read access to and perform read actions on a user's profile information.
UserProfile — class, package dom.objects
Provides methods that allow a script to request read access to and perform read actions on a user's profile information.
utf16Offset — Property, interface dom.core.DOMLocator
The UTF-16, as defined in [Unicode] and Amendment 1 of [ISO/IEC 10646], offset into the input source this locator is pointing to or -1 if there is no UTF-16 offset available.
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