Editing Template:See also if exists/doc

{{Documentation subpage}}
<!-- Add categories where indicated at the bottom of this page and interwikis at Wikidata -->
{{Lua|Module:Labelled list hatnote}}
Displays a "see also" link to one or more pages, followed by a line break, ''if the page exists''.  If none of the supplied pages exist, the template does nothing.

It allows the creation of links to pages which do not exist yet, but which will be displayed if and when the page is created.  This is useful when articles/topics are being developed, because editors do not have to guess whether a target page is likely to exist any time soon: the link can be created now, rather than having to edit the page again later.

==Usage==
;Usual syntax
: '''{{tlx|See also if exists | page}}'''
: '''{{tlx|See also if exists | page1 | page2 | page3 | ...}}'''

'''Parameters:'''
* At least one page name
;Examples
# A page which does exist:<br /><code><nowiki>{{See also if exists|Poland}}</nowiki></code> → {{See also if exists|Poland}}
# A non-existent page:<br /><code><nowiki>{{See also if exists|1997 Presidential election in Planet Zxcvbmm}}</nowiki></code> → {{See also if exists|1997 Presidential election in Planet Zxcvbmm}}
# A set of pages, some of which exist: <br /><code><nowiki>{{See also if exists | Argentina| | James Balfour (died 1845) | asdfghij2345 | Dinosaurs | poiytrewq6789 | zzzzzzzzy | Novels }}</nowiki></code> → {{See also if exists | Argentina| | James Balfour (died 1845) | asdfghij2345 | Dinosaurs | poiytrewq6789 | zzzzzzzzy | Novels }}

==See also==
*{{tl|See also}}
*{{tl|Category see also}}
*{{tl|Category see also if exists}}
*{{tl|Category see also if exists 2}} –&nbsp;includes a fallback category which is tried if the first does not exist
*{{tl|Link if exists}}

{{Hatnote templates}}

<includeonly>{{sandbox other||
<!-- Categories below this line; interwikis at Wikidata -->
[[Category:Conditional link templates]]
[[Category:Hatnote templates]]
[[Category:Related-topic templates]]
[[Category:Wikipedia page-section templates]]
[[Category:Wikipedia see also]]
}}</includeonly>