Template:Demo

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This template simply places template code (or any other code) in a <syntaxhighlight lang="wikitext">...</syntaxhighlight> tag and then places the rendering of that code below it. The template's skeleton is:

{{demo|<nowiki>{{your template}}</nowiki>}}

Template call (m for magic word)	Output (delayed interpretation as wikimarkup)	HTML alternative (never interpreted as wikimarkup)
{{!}} (m)	|	| or {{pipe}}
{{=}} (m)	=	=
{{!!}}	||	||
{{!(}}	[	[
{{)!}}	]	]
{{!((}}	[[	[[
{{))!}}	]]	]]
{{(}}	{	{
{{)}}	}	}
{{((}}	{{	{{
{{))}}	}}	}}
{{(((}}	{{{	{{{
{{)))}}	}}}	}}}
{{(!}}	{|	{|
{{!+}}	|+	|+
{{!-}}	|-	|-
{{!)}}	|}	|}

Failure to wrap <nowiki>...</nowiki> tags around the source may cause the source to be executed before it reaches this template. {{demo|{{fail}}}} produces:

<big style="color:#DF0A24; font-size:1.4em;">&#x2717;</big>&nbsp;'''Fail'''

✗ Fail

Pre style

Set |style= to add any CSS text to the <pre>...</pre> tag.

For example, {{demo|style=margin-left: 1.6em;|<nowiki>{{done}}</nowiki>}} will produce:

{{done}}

 Done

Separator

You can change the separator between the <syntaxhighlight> and the template by setting the |sep= parameter.

{{demo|sep=produces|<nowiki>{{done}}</nowiki>}}

{{done}}

produces  Done

You may use |sep=<td> can make the demonstration fit in a table:

{{done}}

Done

Instead of using |sep=, you can also specify the number of line breaks between the code and the template in the |br= parameter.

Reverse order

Use |reverse=1 to show the code snippet and the result in reverse order:

{{demo|reverse=1|<nowiki>{{tl|template}}</nowiki>}}

will produce

{{template}}

{{tl|template}}

Category removal

For templates that add categories (e.g. {{Asbox}}), set |nocat= (or |demo_kill_categories=) to anything to prevent them from showing up in the output:

{{Asbox
| image = Østfold_våpen.svg
| pix = 30
| subject = [[Østfold]] location
| name = Template:Østfold-geo-stub
| category = Østfold geography stubs
| tempsort = *
}}

produces:

Module

If the template used is based on Lua, you can pass args directly to the demonstrated module by invoking Module:Demo like so: (this would reduce server stress)

{{#invoke:Demo|module|demo_module=RoundN|demo_module_func=N2|demo_template=Round2
|bold_winner=high
|May 1|Team A|1|Team B|2
}}

{{Round2
|bold_winner=high
|May 1|Team A|1|Team B|2
}}

	Final
	May 1
	Team A	1
	Team B	2

Note: It will attempt to preserve line breaks for unnamed params, but such is impossible for named params since those are stripped of whitespace/order before being passed to the module. Also note, you should use |demo_sep= instead of |sep= (all args you don't want being passed should be prefixed with demo_ if not already)

TemplateData

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

TemplateData for Demo

This template takes wikitext and displays it in syntax highlighting and displays the rendering of the wikitext below.

Template parameters[Edit template data]

Parameter		Description	Type	Status
Content	1	must be wrapped in <nowiki>	Unknown	optional
sep	sep	Number of line breaks, or wikitext to fill in as the linebreak	Unknown	optional
nocat	nocat demo_kill_categories	no description	Boolean	optional
result_arg	result_arg	no description	Unknown	optional
<syntaxhighlight> style	style	no description	Unknown	optional
Reverse order	reverse	Show the code snippet and the result in reverse order Default 0 Auto value 1	Boolean	optional

See also

• {{Demo-inline}}, for an inline version of this template
• {{Escape}} - which has an example of this template without nowiki tags
• {{Nowiki template demo}} which uses Module:Template test case
• {{Automarkup}} which uses Module:Automarkup

Other formatting templates

Templates producing specialised formatting effects for given templates, modules or parameters

Code example	Effect	Notes
{{Tj|Hatnote|Some text|selfref: yes|category: no|lang: fr}}	{{Hatnote | Some text | selfref = yes | category = no | lang = fr }}	Supports colors, placeholder texts, named and unnamed parameters
<syntaxhighlight lang="wikitext"> {{Hatnote | Some text | selfref = yes | category = no | lang = fr }} </syntaxhighlight>	{{Hatnote | Some text | selfref = yes | category = no | lang = fr }}	Same as above
{{Tji|Hatnote|Some text|selfref: yes|category: no|lang: fr}}	{{Hatnote|Some text|selfref=yes|category=no|lang=fr}}	Supports colors, placeholder texts, named and unnamed parameters
<syntaxhighlight lang="wikitext" inline>{{Hatnote|Some text|selfref=yes|category=no|lang=fr}}</syntaxhighlight>	{{Hatnote|Some text|selfref=yes|category=no|lang=fr}}	Same as above
{{tl2|Hatnote|lang=fr}}	{{hatnote}}	Supports linking to sister projects (e.g., fr:Hatnote)
{{demo|<nowiki>{{Hatnote|Some text}}</nowiki>}}	{{hatnote|Some text}} Some text	Shows code and example
{{tln|Hatnote}}	Template:Hatnote	Produces a normal link to the template
{{elc|Template:Example}} {{elc|Template:Example|Text|suffix}}	[[Template:Example]] [[Template:Example|Text]]suffix	Shows how wikilink would be entered in wiki markup, with optional link text and suffix
{{ml|Example|hello}}	{{#invoke:Example|hello}}	Counterpart to {{tl}} for linking to Lua modules
{{mfl|Example|hello}}	{{#invoke:Example|hello}}	Similar to {{ml}}, but expects the function to be documented and creates a link to the corresponding section
{{mlx|Example|hello}}	{{#invoke:Example|hello}}	Counterpart to {{tlx}} for linking to Lua modules
{{ml-lua|Module:Example}}	require('Module:Example')	Link to Lua modules and built-in libraries, showing Lua code.
{{para|title|<var>book title</var>}}	|title=book title	Formats template parameters for display, with or without values
{{sclx|LASTING}}	[[WP:LASTING]]	Takes a shortcut suffix in project namespace and displays it with brackets and the WP: alias in a <code>...</code> tag.
{{tag|ref}} {{xtag|templatedata}}	<ref>...</ref> <templatedata>	Formats [X]HTML tags; can add content, choose opening, closing, or self-closing
{{dtl|Ping project}}	{{d:Ping project}}	Wikidata counterpart to {{tl}}
{{mwl|#if}} {{mwl|#if|{{{1}}}|true|false}}	{{#if}} {{#if:{{{1}}}|true|false}}	Magic word links
{{pf|if}} {{pf|if|{{{1}}}|true|false}}	{{#if}} {{#if:{{{1}}}|true|false}}	Parser function equivalent to {{tl}}
{{magic word|uc:}}	{{uc:}}	Magic word links

The above documentation is transcluded from Template:Demo/doc. (edit | history)
Editors can experiment in this template's sandbox (edit | diff) and testcases (edit) pages.
Add categories to the /doc subpage. Subpages of this template.