Template:NAMESPACEID/doc

Returns the namespace ID of page given, or of the current page.

Wikibooks namespaces
Basic namespaces		Talk namespaces
0	Main	Talk	1
2	User	User talk	3
4	Wikibooks	Wikibooks talk	5
6	File	File talk	7
8	MediaWiki	MediaWiki talk	9
10	Template	Template talk	11
12	Help	Help talk	13
14	Category	Category talk	15
102	Cookbook	Cookbook talk	103
108	Transwiki	Transwiki talk	109
110	Wikijunior	Wikijunior talk	111
112	Subject	Subject talk	113
Virtual namespaces
-1	Special
-2	Media

Usage

• {{NAMESPACEID}} → 10
• {{NAMESPACEID|}} → 0 (Main namespace)
• {{NAMESPACEID|{{ns:0}}}} → 0 (Main namespace)
• {{NAMESPACEID|Talk}} → 1

Namespace aliases are accepted, too:

• {{NAMESPACEID|Image}} → 6
• {{NAMESPACEID|File}} → 6
• {{NAMESPACEID|WB}} → 4
• {{NAMESPACEID|Project}} → 4
• {{NAMESPACEID|Wikibooks}} → 4

Invalid input returns an error, which can be caught with the #iferror parser function:

• {{NAMESPACEID|Foo}} →

See also

• mw:Help:Magic words#Namespaces
• {{ns has subpages}}