Template:Langprefix/doc
Returns language prefix of the current page if it's valid language.
{{langprefix}}
onRu/Info_target
becomes Ru/{{langprefix}}
onSk/Info_target
becomes Sk/{{langprefix}}
onDota_2_Workshop_Tools/Addon_Overview/Addon_Creation
becomes nothing just empty string{{langprefix}}
onKo/Dota_2_Workshop_Tools/Addon_Overview/Addon_Creation
becomes Ko/