Template:Void

Similar templates at English sister projects
	Meta	Void
	Wikipedia	Void
	Commons	Void
	Wikibooks	Void
	Wikinews	void
	Wikispecies	Void
	Wikiversity	Void

This template does nothing (it outputs the null string). It's useful for programming advanced templates.

It often is used within a template to the right of an equals sign.

Alternatives

It's also possible to use {{ns:0}} instead of {{void}}. Attackers could manipulate {{void}} but not {{ ns:0 }}, the empty/void/null string for the main namespace.

Some magic words like __END__ might also have the desired effect of doing nothing.