(({1))}

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((VAR))
((variable))

This template is used on approximately 9,700 pages and changes may be widely noticed. Test changes in the template's /sandbox or /testcases subpages, or in your own user subpage. Consider discussing changes on the talk page before implementing them.

Usage

This template is to help facilitate the displaying of variable names (in mathematics, computer source code, wikimarkup in template documentation, metasyntactic variables, etc.) with the semantically correct <var>...</var> tags, which also renders the variable in italics, as is customary. This method is preferred to simply italicizing for many reasons, including accessibility, separation of presentation and content, semantic Web, and metadata. In XHTML and HTML, the <var> element has semantic meaning, while simple italicization does not. This template provides a tiny hint of kerning to compensate for the italicization and enhance readability.

"Variable" in this sense may include arbitrary or unknown names or terms, examples of human input, arithmetical variables in equations, etc. This template (and the underlying XHTML) are generally not used if MediaWiki's <math>...</math> tags (or any other stand-alone mathematical markup) are being used.

Examples

Example: ((var|username)); outputs the following HTML:; <var>username</var>; which renders as:; username

Note that on the screen or in print, this renders as simple italicization, as does ''username'' (using pairs of apostrophes) or <i>username</i> (using HTML), yet it carries more semantic meaning than either of these methods.

At times, you may wish to use a serif font. This is especially true when attempting to render single-letter variables like "I" (upper-case "i") and "l" (lower-case "L"), since they are nearly indistinguishable (if at all). In such situations, use the ((varserif)) template instead of ((var)), to make them more distinguishable, like these serif examples: I, l.

More examples

Markup	Renders as
The HTML code: ((block indent\|((tag\|var\|content=username)))) renders as: ((block indent\|((var\|username))))	The HTML code: `<var>username</var>` renders as: `username`
The commandline should read: ((samp\|%)) ((kbd\|1=ssh ((var\|hostname))))<br />(where ((var\|hostname)) is the IP address or ...)<br />If it is correct, press ((key press\|Enter)).	The commandline should read: `%` `ssh hostname` (where `hostname` is the IP address or ...) If it is correct, press `↵ Enter`.
in this equation, let ((var\|x))((=))1 and ((var\|y))((=))120 ...	in this equation, let `x`=1 and `y`=120 ...
((para\|accessdate\|((var\|todays_date))))	`\|accessdate=todays_date`

TemplateData

This is the TemplateData for this template used by TemplateWizard, VisualEditor and other tools. See a monthly parameter usage report for Template:Var in articles based on its TemplateData.

TemplateData for Var

Marks text as an HTML variable

Template parameters[Edit template data]
Parameter		Description	Type	Status
variable	`1`	no description	Line	required
class	`class`	no description	String	optional
ID	`id`	no description	String	optional
CSS style	`style`	no description	String	optional
language	`lang`	no description Example c++	String	optional
HTML title (hovertext)	`title`	no description	String	optional

Template	Example output	Use
((strong))	Important!	To indicate <strong> importance, seriousness, or urgency instead of just simple typographical boldfacing
((strongbad))	"Never use ..."	Same as ((strong)) but in red
((stronggood))	"Only use ..."	Same as ((strong)) but in green
((em))	"An emphatic phrase"	To indicate <em> stress emphasis (not just purely typographical italicization like for book titles or foreign terms)
((var))	`strPrefix`	To indicate text is a variable name. Use for any variable names except those including "I" (uppercase i) and/or "l" (lowercase L); for these, ((var serif)) should be used to ensure a noticeable distinction
((var serif))	`strIllustratePrefix`	(see ((var)) above)
((tld))	`((DEFAULTSORT:Y, X))`	To display wikicode variables and magic words as they would appear in code
((para))	`\|year=2008`	To display template parameters with or without values
((param))	`(({title\|alt))}`	To display parameters as used in code (i.e. with triple braces), especially to indicate relationships between them. May be combined with ((para)) above
((tjp))	\|selfref=yes	To display template parameters with colors (as they would appear in the ((tj)) and ((tji)) templates)
((param value))	`··2·blanks·fore·and·aft··`	To display parameter values lightly bordered; replaces <code>...</code>, especially when value contains embedded or leading/trailing blanks; visualized here with middot (·) but can use ␠, ▯, or any character.
((tlx)) etc.	`((Template\|1\|2\|...\|10))`	To display a template call (with or without parameters and values) as code
((tji))	((hatnote\|Hello\|selfref=yes\|category=no))	To showcase with colors in horizontal format the syntax of any template, while providing an easy way to display placeholder texts using colons as separators
((tag))	"The `<img>...</img>` tags ..."	To render HTML elements ("tags") in prose
((code))/((codett))	"Ensure the `alt=` parameter ..."	To indicate text is source code. To nest other templates within ((code)), use `<code>...</code>`. ((codett)) differs only in styling: `someMethod` becomes `someMethod`
((subst:codenowiki))	`((small\|small text example))`	To wrap example code in `<code><nowiki>...</nowiki></code>`
((subst:kbdnowiki))	`((large\|large text example))`	To wrap example code in `<kbd><nowiki>...</nowiki></kbd>`
((syntaxhighlight))	_{[this is a block template]}	( or `((sxhl))` ) Wrapper for `<syntaxhighlight>...</syntaxhighlight>`, but will wrap overflowing text
((deprecated code))	"Do not use `<blink>`."	( or `((dc))` ) To indicate deprecated source code in template documentation, articles on HTML specs, etc. The `((dc2))` variant uses strike-through (`<blink>`) while `((dcr))` uses red (`<blink>`).
((pre))	_{[this is a block template]}	For larger blocks of source code and other pre-formatted text
((tj))	_{[this is a block template]}	To showcase with colors and multiple lines (vertical format) the syntax of any template, while providing an easy way to display placeholder texts using colons as separators
((quote))	_{[this is a block template]}	For block quotations (only – never for non-quotations)
((block indent))	_{[this is a block template]}	For indented blocks of material; visually identical to `((quote))` but without quote markup
((kbd))	`user input`	To indicate user input
((key press))	`Ctrl`+`x`	To indicate specific-keystroke input, including combinations
((key top))	`Left shift`	Similar; includes more symbols, but does not directly support combinations
((button))	`Don't save`	To indicate a button in a user interface
((samp))	`example output`	To indicate sample or example output

The above documentation is transcluded from Template:Var/doc.
Editors can experiment in this template's sandbox and testcases pages.
Add categories to the /doc subpage. Subpages of this template.

Usage

Examples

TemplateData

See also