| This is a documentation subpage for Template:LangSwitch.
It contains usage information, categories and other content that is not part of the original template page.
| Note: This Template is used on a lot of pages. In order not to put too much load on the servers, edits should be kept to a bare minimum. Please discuss proposed changes on the talk page first.
See Wikipedia:Meta:Template:LangSwitch for documentation.
|en= is mandatory for defining a default message in English (this message may be empty but the parameter must be present). If it is missing, the page will be listed in Category:Pages with missing en parameter in LangSwitch.