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Showing 2,351–2,400 of 2,660 terms.
V
21 terms
validate_file(): Validates a file name and path against an allowed set of rules.
valid_unicode(): Determines if a Unicode codepoint is valid.
In the context of data or an object wrapper around that data, the value is the primitive value that the object wrapper contains.
The vector-effect CSS property suppresses specific transformation effects in SVG, thus permitting effects like a road on a map staying the same width no matter how the map is zoomed, or allowing a diagram key to retain its position and size regardless of…
A set of participant counters used to distinguish causal ordering from concurrent events.
Browser vendors used to add prefixes to experimental or nonstandard CSS properties and JavaScript APIs, so developers could experiment with new ideas.
version_compare() — Compares two "PHP-standardized" version number strings.
The vertical-align CSS shorthand property sets the vertical alignment of an inline, inline-block, or table-cell box.
The view-timeline CSS shorthand property defines a named view progress timeline's name, direction, and inset values.
The view-timeline-axis CSS property specifies the scroll direction to be used for a named view progress timeline.
The view-timeline-inset CSS property is used to specify one or two values representing an adjustment to the position of the scrollport (see Scroll container for more details) in which the subject element of a named view progress timeline animation is…
The view-timeline-name CSS property specifies the names of one or more named view progress timelines associated with the element.
The view-transition-class CSS property provides the selected elements with one or more identifying classes (custom-idents), providing an additional method of styling the view transitions for those elements.
The view-transition-name CSS property specifies the view transition snapshot that selected elements will participate in.
In computer graphics, a viewport represents a polygonal (normally rectangular) area that is currently being viewed.
The visibility CSS property shows or hides an element without changing the layout of a document.
The portion of the viewport that is currently visible is called the visual viewport.
A void element is an element in HTML that cannot have any child nodes (i.e., nested elements or text nodes).
VoIP (Voice over Internet Protocol) is a technology used to transmit voice messages over IP (Internet Protocol) networks.
Vultr provides cloud infrastructure that can host WordPress applications and related services.
W
279 terms
The World Wide Web Consortium (W3C) is an international body that maintains Web-related rules and frameworks.
The Web Accessibility Initiative (WAI) is an effort by the W3C to develop standards and guidelines to help everyone building the web ensure and improve accessibility for people with various challenges.
Web Content Accessibility Guidelines (WCAG) is a recommendation published by the Web Accessibility Initiative (WAI) group at the W3C, outlining a set of guidelines for making content accessible primarily for people with disabilities, but also for…
A WeakMap is a collection of key/value pairs whose keys must be objects or non-registered symbols, with values of any arbitrary JavaScript type, and which does not create strong references to its keys.
Parameters: iterable An Array or other iterable object that produces a two-element array-like object whose first element is a value that will be used as a WeakMap key and whose second element is the value to associate with that key.
The delete() method of WeakMap instances removes the entry specified by the key from this WeakMap.
The get() method of WeakMap instances returns the value corresponding to the key in this WeakMap, or undefined if there is none.
The getOrInsert() method of WeakMap instances returns the value corresponding to the specified key in this WeakMap.
The getOrInsertComputed() method of WeakMap instances returns the value corresponding to the specified key in this WeakMap.
The has() method of WeakMap instances returns a boolean indicating whether an entry with the specified key exists in this WeakMap or not.
The set() method of WeakMap instances adds a new entry with a specified key and value to this WeakMap, or updates an existing entry if the key already exists.
A WeakSet is a collection of garbage-collectable values, including objects and non-registered symbols.
Parameters: iterable If an iterable object is passed, all of its elements will be added to the new WeakSet. null is treated as undefined.
The add() method of WeakSet instances inserts the specified value into this set, if it is not already present.
The delete() method of WeakSet instances removes the specified value from this set, if it is in the set.
The has() method of WeakSet instances returns a boolean indicating whether the specified value exists in this WeakSet or not.
WebDAV (Web Distributed Authoring and Versioning) is an HTTP Extension that lets web developers update their content remotely from a client.
WebGL (Web Graphics Library) is a JavaScript API that draws interactive 2D and 3D graphics.
WebIDL is the interface description language used to describe the data types, interfaces, methods, properties, and other components which make up a Web application programming interface (API).
WebKit is a framework that displays properly-formatted webpages based on their markup.
Web performance is the objective time from when a request for content is made until the requested content is displayed in the user's browser, objective render times, and the subjective user experience of load time and runtime.
WebRTC (Web Real-Time Communication) is an API that can be used by video-chat, voice-calling, and P2P-file-sharing Web apps.
A web server is a piece of software that often runs on a hardware server offering service to a user, usually referred to as the client.
WebSocket is a protocol that allows for a persistent TCP connection between server and client so they can exchange data at any time.
Web standards are rules established by international standards bodies that define how the Web works (and which sometimes control the Internet as well).
WebVTT (Web Video Text Tracks) is a W3C specification for a file format marking up text track resources in combination with the HTML track element.
The white-space CSS shorthand property sets how white space inside an element is handled.
The white-space-collapse CSS property controls how white space inside an element is collapsed.
Whitespace refers to characters which are used to provide horizontal or vertical space between other characters.
The widows CSS property sets the minimum number of lines in a block container that must be shown at the top of a page, region, or column.