View source for Template:Subpage other/doc

{{Documentation subpage}}
<!-- Please place categories where indicated at the bottom of this page and interwikis at Wikidata (see [[Wikipedia:Wikidata]]) -->
{{High-use}}

== Usage ==
This template checks whether the current page is a subpage or not. A [[Wikipedia:Subpages|subpage]] is a page that has a slash: 
:''<nowiki>[[Template:Parentpage/Subpage]]</nowiki>''

Exception: in article space (mainspace) the slash is part of the title, and there are no subpages. Example, [[AC/DC]] is a parent page not a subpage.

Usage example: both [[Template:Infobox element isotopes]] and [[Template:Infobox element isotopes/infotable]] use documentation page [[Template:Infobox element isotopes/doc]]. We only want to categorise the parent page. So in the /doc page we add:
:<code><nowiki>{{Subpage other|<!-- do not categorise -->|[[Category:Chemical element infobox]]}}</nowiki></code>

;Note: [[WP:Subpage]] uses an other definition than magic word <code><nowiki>{{SUBPAGENAME}}</nowiki></code>. This template uses the former definition (pagename has an after-slash part). 
==See also==
{{Foo other see also}}
<includeonly>{{sandbox other||
<!-- Categories below this line, please; interwikis at Wikidata -->
[[Category:Pagename manipulation templates]]
[[Category:Template namespace templates]]
}}</includeonly>