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Placeholder Names
Placeholder may refer to: Language * Placeholder name, a term or terms referring to something or somebody whose name is not known or, in that particular context, is not significant or relevant. * Filler text, text generated to fill space or provide unremarkable and/or standardised text. * Lorem ipsum, a standard Latin text most commonly used to demonstrate a font, typography or layout. Mathematics and computer science * Free variable, a symbol subsequently replaced by a value or string. * Interpoled variable of a ''string interpolation'' process. * Metasyntactic variable, a placeholder name (see above) as used in computer science. * Format placeholder, used in computing to format strings within print functions (printf). Other uses * Line stander, a person standing in a queue for another. * Placeholder (politics), a person temporarily appointed to an office that would otherwise remain vacant. See also * Filler (other) * Spacer (other) * Stand-in * Subst ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Placeholder Name
Placeholder names are intentionally overly generic and ambiguous terms referring to things, places, or people, the names of which or of whom do not actually exist; are temporarily forgotten, or are unimportant; or in order to avoid stigmatization, or because they are unknowable or unpredictable given the context of their discussion; or to deliberately expunge direct use of the name. Placeholder names for people are often terms referring to an average person or a predicted persona of a typical user. Linguistic role These placeholders typically function grammatically as nouns and can be used for people (e.g. '' John Doe, Jane Doe''), objects (e.g. '' widget''), locations ("Main Street"), or places (e.g. ''Anytown, USA''). They share a property with pronouns because their referents must be supplied by context; but, unlike a pronoun, they may be used with no referent—the important part of the communication is not the thing nominally referred to by the placeholder, but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Filler Text
Filler text (also placeholder text or dummy text) is text that shares some characteristics of a real written text, but is random or otherwise generated. It may be used to display a sample of fonts, generate text for testing, or to spoof an e-mail spam filter. The process of using filler text is sometimes called ''greeking,'' although the text itself may be nonsense, or largely Latin, as in Lorem ipsum. Asdf ASDF is the sequence of letters that appear on the first four keys on the home row of a QWERTY or QWERTZ keyboard. They are often used as a sample or test case or as random, meaningless nonsense. It is also a common learning tool for keyboard classes, since all four keys are located on the home row. Etaoin shrdlu "Etaoin shrdlu" is the approximate order of frequency of the twelve most commonly used letters in the English language, best known as a nonsense phrase that sometimes appeared in print in the days of "hot type" publishing due to a custom of Linotype machine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lorem Ipsum
''Lorem ipsum'' ( ) is a dummy or placeholder text commonly used in graphic design, publishing, and web development. Its purpose is to permit a page layout to be designed, independently of the copy (publishing), copy that will subsequently populate it, or to demonstrate various fonts of a typeface without meaningful text that could be distracting. ''Lorem ipsum'' is typically a corrupted version of , a 1st-century BC text by the Roman Republic, Roman statesman and philosopher Cicero, with words altered, added, and removed to make it nonsensical and improper Latin. The first two words are the Clipping (morphology), truncation of ("pain itself"). Versions of the ''Lorem ipsum'' text have been used in typesetting since the 1960s, when advertisements for Letraset transfer sheets popularized it. ''Lorem ipsum'' was introduced to the digital world in the mid-1980s, when Aldus Corporation, Aldus employed it in graphic and word-processing templates for its desktop publishing program ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Free Variables And Bound Variables
In mathematics, and in other disciplines involving formal languages, including mathematical logic and computer science, a variable may be said to be either free or bound. Some older books use the terms real variable and apparent variable for free variable and bound variable, respectively. A ''free variable'' is a Mathematical notation, notation (symbol) that specifies places in an expression (mathematics), expression where Substitution (logic), substitution may take place and is not a parameter of this or any container expression. The idea is related to a ''placeholder'' (a symbol that will later be replaced by some value), or a wildcard character that stands for an unspecified symbol. In computer programming, the term free variable refers to variable (programming), variables used in a function (computer science), function that are neither local variables nor parameter (computer programming), parameters of that function. The term non-local variable is often a synonym in this co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variable Interpolation
Variable may refer to: Computer science * Variable (computer science), a symbolic name associated with a value and whose associated value may be changed Mathematics * Variable (mathematics), a symbol that represents a quantity in a mathematical expression, as used in many sciences * Propositional variable, taking the value true or false in mathematical logic * Random variable, a variable in statistics whose value depends on random events ** Categorical variable, taking one of a finite number of values in a statistical problem, such as the head or tail result of a tossed coin ** Independent and identically distributed random variables, statistically independent and having the same probability distribution * Fluent (mathematics), a time-varying quantity as coined by Isaac Newton in his early calculus * State variable, used to describe the mathematical "state" of a dynamical system * Slack variable, inserted to transform an inequality constraint in an optimization problem in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metasyntactic Variable
A metasyntactic variable is a specific word or set of words identified as a placeholder in computer science and specifically computer programming. These words are commonly found in source code and are intended to be modified or substituted before real-world usage. For example, ''foo'' and ''bar'' are used in over 330 Internet Engineering Task Force Requests for Comments, the documents which define foundational internet technologies like HTTP (web), TCP/IP, and email protocols. By mathematical analogy, a metasyntactic variable is a word that is a variable for other words, just as in algebra letters are used as variables for numbers. Metasyntactic variables are used to name entities such as variables, functions, and commands whose exact identity is unimportant and serve only to demonstrate a concept, which is useful for teaching programming. Common metasyntactic variables Since English is the foundation language or lingua franca of most computer programming languages, varia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Printf Format String
printf is a C standard library function that formats text and writes it to standard output. The function accepts a format c-string argument and a variable number of value arguments that the function serializes per the format string. Mismatch between the format specifiers and count and type of values results in undefined behavior and possibly program crash or other vulnerability. The format string is encoded as a template language consisting of verbatim text and ''format specifiers'' that each specify how to serialize a value. As the format string is processed left-to-right, a subsequent value is used for each format specifier found. A format specifier starts with a character and has one or more following characters that specify how to serialize a value. The standard library provides other, similar functions that form a family of ''printf-like'' functions. The functions share the same formatting capabilities but provide different behavior such as output to a different ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Line Stander
A line stander, queue stander, line sitter or queue professional is a person who takes a position in a queue in place of another, often for payment. This informal occupation came to an existence out of the necessity to stand long times in queues. Practice Line sitting is often a paid endeavor, with companies recruiting people, sometimes homeless people, to sit in lines for a price. In some circumstances, people can make sufficient money to line sit professionally. In rare cases, people also choose to sit in line for non-monetary purposes, e.g. for media attention at major events, Greg Packer is an example of this. The practice of line sitting has drawn academic research. A study conducted by Georgetown University and Johns Hopkins University employs queueing theory and game theory to study the economic and operational dynamics of line sitting. The researchers contrast line sitting with the commonly used pay-for-priority scheme and show why line sitting can be a win-win for the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Placeholder (politics)
In politics, a placeholder is an official appointed temporarily to a position, with the understanding that they will not seek office in their own right. The situation often occurs in cases where a United States senator dies in office or leaves before the expiration of their term. In most states, governors have the power to appoint a replacement temporarily, until a special election can be held. Governors interested in seeking the office may appoint themselves to the position; however, this may be seen by voters in a negative light as self-dealing and creating an undue advantage, and it may backfire leading to the new senator's defeat. To avoid this, the governor may instead select an aide to fill the slot for a few months, with the understanding that the appointee does not seek a full term. After the resignation of Senator Mel Martinez of Florida, Florida governor Charlie Crist appointed his chief of staff George LeMieux to the vacant Senate seat, which Crist ultimately ran for. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Filler (other)
In general, a filler is something that is used to fill gaps. Specialized meanings include: Materials * Filler (animal food), dietary fiber and other ingredients added to pet foods to provide bulk * Filler (materials), particles added to a matrix material, usually to improve its properties * Filler (packaging), a machine designed to fill packaging, usually occurs in food packaging * Filler metal, metal added in the making of a joint through welding, brazing, or soldering * Grain filler, a product that is used to achieve a smooth-textured wood finish * Injectable filler, a soft tissue filler injected into the skin to help fill in facial wrinkles * Star filler, a plastic insert in computer cables which separates wires Media and entertainment * Filler (media), in television and other media, material that exists outside the story arc to pad out other material * "Filler", song by hardcore punk band Minor Threat, from their debut E.P. Other uses * Filler (linguistics) In linguis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spacer (other)
A spacer can refer to something used to separate two parts in an assembly. Spacer can also refer to: Arts and entertainment * ''Spacer'' (album), a 2011 album by Jason Adasiewicz * "Spacer", a song by Sheila and B. Devotion from the 1980 album '' King of the World'' * "Spacer", a 1938 short story by Sydor Rey * Spacers, a fictional sociocultural group in Isaac Asimov's Robot series, ''Robot'' series of novels and short stories Science and technology Biology and medicine * Asthma spacer, medical equipment * Orthodontic spacer * Spacer DNA, in genetics * Joint replacement#spacer, Spacer in joint replacement Other uses in science and technology * Spacer, an element in HTML web design * Spacers and standoffs, unthreaded pieces of rigid tubing, often used in electronic equipment * Rebar spacer, in concrete construction Oil and gas industry * Spacer, a viscous fluid used to remove drilling fluids ahead of cement slurry. The spacer is made up with specific fluid attributes, such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stand-in
A stand-in, sometimes a lighting double, for film and television is a person who substitutes for the actor before filming, for technical purposes such as lighting and camera setup. Stand-ins are helpful in the initial processes of film and television production. Stand-ins allow the director of photography to light the set and the camera department to light and focus scenes while the actors are absent. The director will often ask stand-ins to deliver the scene dialogue ("lines") and walk through ("blocking") the scenes to be filmed. Stand-ins are distinguished from doubles, who replace actors ''on camera'' from behind, in makeup, or during dangerous stunts. Stand-ins do not appear on camera. However, on some productions the jobs of stand-in and double may be done by the same person. In rare cases, a stand-in will appear on screen, sometimes as an in-joke. For instance, a scene in '' Heidi'' (1937) features the title character's grandfather ( Jean Hersholt) mistake a stranger f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
