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User Agent Accessibility Guidelines (UAAG) is a recommendation published by the Web Accessibility Initiative group at the W3C, explaining how to make user agents accessible to people with disabilities.
UDP (User Datagram Protocol) is a long standing protocol used together with IP for sending data when transmission speed and efficiency matter more than security and reliability.
User Interface (UI) is anything that facilitates the interaction between a user and a machine.
The Uint8Array typed array represents an array of 8-bit unsigned integers.
The Uint8Array.fromBase64() static method creates a new Uint8Array object from a base64-encoded string.
The Uint8Array.fromHex() static method creates a new Uint8Array object from a hexadecimal string.
The setFromBase64() method of Uint8Array instances populates this Uint8Array object with bytes from a base64-encoded string, returning an object indicating how many bytes were read and written.
The setFromHex() method of Uint8Array instances populates this Uint8Array object with bytes from a hex-encoded string, returning an object indicating how many bytes were read and written.
The toBase64() method of Uint8Array instances returns a base64-encoded string based on the data in this Uint8Array object.
The toHex() method of Uint8Array instances returns a hex-encoded string based on the data in this Uint8Array object.
The undefined global property represents the primitive value undefined.
The unicode-bidi CSS property, together with the direction property, determines how bidirectional text in a document is handled.
A unique constraint prevents more than one row from storing the same value or combination of values in a defined database key.
Unix time is a method to represent a timestamp, and is usually defined as the number of seconds since the beginning of the Unix epoch, which is January 1st, 1970, at midnight (UTC).
unregister_default_headers(): Unregisters default headers.
unregister_meta_key(): Unregisters a meta key from the list of registered keys.
unregister_term_meta(): Unregisters a meta key for terms.
untrailingslashit(): Removes trailing forward slashes and backslashes if they exist.
An update manifest describes an available software release for a client's update mechanism.
update_comment_cache(): Updates the comment cache of given comments.
update_comment_meta(): Updates comment meta field based on comment ID.
update_metadata(): Updates metadata for the specified object.
update_metadata_by_mid(): Updates metadata by meta ID.
update_meta_cache(): Updates the metadata cache for the specified objects.
update_network_option(): Updates the value of a network option that was already added.
update_object_term_cache(): Updates the cache for the given term object ID(s).
update_option(): Updates the value of an option that was already added.
update_post_meta(): Updates a post meta field based on the given post ID.
update_termmeta_cache(): Updates metadata cache for list of term IDs.
update_term_meta(): Updates term metadata.
update_user_meta(): Updates user meta field based on user ID.
update_user_option(): Updates user option with global blog capability.
A URI (Uniform Resource Identifier) is a string that refers to a resource.
The URIError object represents an error when a global URI handling function was used in a wrong way.
A Uniform Resource Locator (URL) is a text string that specifies where a resource (such as a web page, image, or video) can be found on the Internet.
The URL.canParse() static method of the URL interface returns a boolean indicating whether or not an absolute URL, or a relative URL combined with a base URL, are parsable and valid.
The createObjectURL() static method of the URL interface creates a string containing a blob URL pointing to the object given in the parameter.
urlencode() — URL-encodes string.
The URLSearchParams() constructor creates and returns a new URLSearchParams object.
The set() method of the URLSearchParams interface sets the value associated with a given search parameter to the given value.
The toString() method of the URLSearchParams interface returns a query string suitable for use in a URL.
The user-select CSS property controls whether the user can select text.
A user agent is a computer program representing a person, for example, a browser in a Web context.
Diagnostics in User Hub for Fluent report provider availability, routing, theme configuration, delegated capabilities, and release information.
User Hub for Fluent is Jeff Brigman's member-profile and account workspace for WordPress sites using Fluent products.
Profile URL Overrides are the optional User Hub settings that route supported profile destinations into the hub.
Provider Connections are User Hub for Fluent's integrations with the products that supply member-account content.
The Setup Assistant guides configuration of User Hub for Fluent's routes, presentation, connected providers, optional profile overrides, and FluentHub placement.
Split Presentation is User Hub for Fluent's option for letting profiles opened from FluentCommunity retain a native community frame while other supported profile entry points use the hub's standalone presentation.
The Tab Manager controls the order, labels, and visibility of sections in User Hub for Fluent.