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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 template below the code.

|sep =
|nocat =
|<nowiki>{{your template}}</nowiki>

IMPORTANT: You must wrap include <nowiki>...</nowiki> tags around the source to be demonstrated (or use {{escape}}, which has a demo-escape example), like so: {{demo|&lt;nowiki>[template source]</nowiki>}}

Failure to wrap <nowiki>...</nowiki> tags around the source may cause the source to be executed before it reaches this template:



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




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


produces  Done

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


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:


will produce



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:

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



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)

|May 1|Team A|1|Team B|2
|May 1|Team A|1|Team B|2
May 1
Team A1
Team B2

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)

See also

Other formatting templates

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

<templatedata> { "params": { "1": { "label": "Content", "description": "must be wrapped in <nowiki>" }, "sep": { "description": "Number of line breaks, or wikitext to fill in as the linebreak" },

       "sep": {

"description": "Number of line breaks, or wikitext to fill in as the linebreak" }, "nocat": { "type": "boolean", "aliases": [ "demo_kill_categories" ] }, "result_arg": {}, "style ": { "label": "<syntaxhighlight> style" } } } </templatedata>