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)	=	=
{{!!}}			||
{{!(}}	Template:!(	[
{{)!}}	Template:)!	]
{{!((}}	[[	[[
{{))!}}	]]	]]
{{(}}	Template:(	{
{{)}}	Template:)	}
{{((}}	{{	{{
{{))}}	}}	}}
{{(((}}	Template:(((	{{{
{{)))}}	Template:)))	}}}
{{(!}}	{|	{|
{{!+}}	|+	|+
{{!-}}	|-	|-
{{!)}}	|}	|}

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

[[:Template:Fail]]

Template: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}}

Template: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 Template:Done

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

{{done}}

Template: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
}}

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, which is used by TemplateWizard, the VisualEditor and still other tools.

TemplateData for Demo

No description.

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

{{#lsth:Template:Template-linking_templates|Other formatting templates}}