Help:Templates
Control template inclusion
You can control template inclusion by the use of <noinclude> and
<includeonly> tags.
Anything between <noinclude> and </noinclude> will be processed and
displayed only when the page is being viewed directly, not included.
Possible applications are:
- Categorising templates
- Interlanguage links to similar templates in other languages
- Explanatory text about how to use the template
The converse is <includeonly>. Text between <includeonly> and
</includeonly> will be processed and displayed only when the page is
being included. The obvious application is to add all pages containing a given template to a category.
Note that the usual update problems apply -- if you change the categories inside a template, the categories of the referring pages won't be updated until those pages are edited.