Help:Namespaces

The title of a page must be given when creating it. It is the large, styled text at the top of the page.

Change

• Assuming it is not under protection, the title can be moved using the "Move" edit tab or directly with Special:MovePage.
• If only the display should be changed, use {{displaytitle:}} or a wrapping template such as {{italic title}}.
• If the title should be hidden (and you have express permission to do so), add __NOTITLE__ at the top – see the Main Page for an example. This method is now preferred over manual targeting of the #firstHeading selector.

Parts

One of several function hooks can retrieve specific parts of the title. Generally:

Prefix:Rootpage/Subpage

There is also {{#titleparts:}} which works to the same end, but with a bit more involved user input. Scribunto has a built-in mw.title library; Get the title object with mw.title.getCurrentTitle() then use one of several methods to retrieve one or more parts/data as a text string.

Example page title: Help:Parser functions/rreplace
For the Lua column:

local MWTitle = mw.title.getCurrentTitle()

Parser function	Normal	URL-encoded link		Lua
{{PAGENAME}}	Parser functions/rreplace	Parser_functions/rreplace		MWTitle.text
{{FULLPAGENAME}}	Help:Parser functions/rreplace	Help:Parser_functions/rreplace		MWTitle.prefixedText
{{BASEPAGENAME}}	Parser functions	Parser_functions		MWTitle.baseText
{{ROOTPAGENAME}}	Parser functions	Parser_functions		MWTitle.rootText
{{SUBPAGENAME}}	rreplace	rreplace		MWTitle.subpageText

If seeking to compare equality of two page titles, usually it is best to use {{PAGEID}} instead, as various transclusion factors may influence the encoding level of a string at different points of evaluation.

Namespaces

Namespaces refer to each different type, or perhaps "class" of page that exists on the wiki. Each has unique properties and quirks that define its identity, and how it interacts with others. The namespace of a given page is easily identifiable by the prefix in the title, with the principal exception of the mainspace, which has none.

Every content namespace (except Special) has a corresponding talk page. The latter should be assumed to operate identically unless noted otherwise.

Index list

#	Namespace	Purpose	Example
0	Main	All content articles about Cars.	Lightning McQueen
1	Talk	Forums for user discussion, about edits and proposals to the respective page.	Talk:Mater
2	User	Each user has their own personal userpage - see Pixar Cars Wiki:Userspace for details and policies. A userpage can also serve as the base for additional sub-pages.	User:RodRedlineM1
3	User talk	See Talk, but for userpages - Every user also has one of these, which can be used for free and open discussion with any other user.	User talk:RodRedlineM1
4	Pixar Cars Wiki	(Project) - Pages devoted to the Pixar Cars Wiki itself: Often covering guidelines, policies, and other information about the wiki's goals, history, and administration.	Pixar Cars Wiki:About
5	Pixar Cars Wiki talk		Pixar Cars Wiki talk:Manual of Style
6	File	Houses each image, video, and audio sample. A file page also displays licensing information for its respective upload.	File:LightningTent.jpg
7	File talk		File talk:Site-favicon.ico
8	MediaWiki	System pages that control the functions and appearance of the site itself. Only administrators can edit them, but any user may offer or discuss suggestions on the corresponding talk page.	MediaWiki:Common.css
9	MediaWiki talk		MediaWiki talk:Sitenotice
10	Template	Pages that can be transcluded into others via use of {{curly braces}}.	Template:Mattel-cars
11	Template talk		Template talk:Delete
12	Help	Documentation pages, designed as a resource for new and returning users to learn more about editing the wiki.	Help:Editing
13	Help talk		Help talk:Directory
14	Category	The base of a category, typically with a brief description of its purpose, as well as sorting of appropriate sub-categories.	Category:Dinoco
15	Category talk		Category talk:Articles pending deletion
Custom namespaces
100	Gallery	See Help:Gallery	Gallery:Flo
101	Gallery talk		Gallery talk:Flo
102	Vehicle	See Help:Vehicle	Vehicle:Hydraulic Ramone
103	Vehicle talk		Vehicle talk:Hydraulic Ramone
Custom namespaces (extension)
106	Form	Preset HTML forms (Page Forms)
107	Form talk		—
828	Module	Lua script modules (Scribunto)	Module:Tdoc
829	Module talk		—
2300	Gadget	Gadget names and content (Gadgets) - Alias/extension of MediaWiki space	MediaWiki:Gadget-HotCat
2301	Gadget talk		—
2302	Gadget definition		MediaWiki:Gadget-HotCat.js
2303	Gadget definition talk		—

Functions

Like above, several functions exist to retrieve the namespace data of a page.

Retrieve	Primary Method	Secondary Method(s)
Name (Prefix)	{{NAMESPACE}}	{{SUBJECTSPACE}} {{TALKSPACE}}
Index #	{{NAMESPACENUMBER}}	—

{{ns:}} (and url-encoded counterpart {{nse:}}) will return the title from an input of either the name or number.

See also

• List of all pages, sortable by namespace
• MediaWiki's help page on namespaces