Wildcard Definition – What it is, Meaning and Concept

WildcardThe concept of wildcard It is used in certain games to name the face of a dice, to file or to letter that allows to replace another or that is applied to obtain some type of benefit. The wild cards emerged in the second half of XIX century and over time they became popular.

In current decks there are usually two jokers. The figure chosen to represent the jokers, as well as the color of the card, depends on each printer. Usually the wild card is represented as a jester or a minstrel, although this choice may vary.

The use of the joker depends on each game. At chinchon, for example, the joker allows you to replace any card. Because the goal is to keep as few points as possible, it is important to get rid of the wild cards as they add up 25 or fifty points. Instead in the trick, to cite another card game, jokers are not used.

In colloquial language, an element or individual is said to be a wildcard when it can meet multiple functions: “The young Venezuelan became the wild card of the team: he can play in defense, in midfield or even in the offensive sector”, “For the president, Gómez is a wild card: he has already held positions in four different ministries”, “This coat serves as a wild card since I use it both in formal events and in informal occasions”.

In the field of computing, this term is also used, although it is a symbol that can substitute for one or more characters of all the possible ones in the system. Between the wildcard characters Most commonly used in this context are the asterisk, percent sign, underscore, and trailing question mark (“*”, “%”, “_”, and “?”, respectively).

It is important to understand that different wildcard characters can be used in each application; for example, while in TWO the asterisk is used to represent any number of characters (from one to the limit of the file name or its extension, within the possible characters according to the naming rules), in databases programmed in SQL the percent sign is used to substitute a character string from zero to the limit of the countryside, and the underscore for one. In regular expressions, on the other hand, the period is often used as a wildcard character.

In the operating systems Today, the wildcard is used in file searches even without the user being aware of it. For example, when we want to open a file to edit it in Photoshop, the program shows us the last folder we have used and the files that respond to one of several formats present in a list: «* .png, * .jpg, * .psd “, and so on.

WildcardA few decades ago, when operating systems did not have a graphical interface, you had to use a text command to find or list files with a specific extension; for instance: “DIR * .jpg»Is used in DOS to display all files with a« jpg »extension in the current directory.

Although many people do not know it, most Internet search engines also support the use of characters wildcards to represent words that we do not remember when doing the search. For example, in Google we can search “Mount * is the highest mountain in the world” if we have forgotten the name “Everest”, and we will get the desired results. This can also be used to substitute characters within a word.

In this particular case, it should be noted that Google’s technology is so advanced that it is not necessary to use a wildcard character, since its «intuition»Allows him to hit almost all of our searches and often seems to read our minds when he completes our sentences before we do.

In some countriesFinally, the subject who always looks for his comfort: “Juan is a wild card, you can’t expect much from him”.

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