Extension:External Data/Clearing data

You can clear all external data that has already been retrieved, so that it doesn't conflict with calls to retrieve external data further down the page. The most likely case in which this is useful is when data is retrieved and displayed in a template that is called more than once on a page. To clear the data, just call " ". Note that the ":" has to be there at the end of the call, or else MediaWiki will ignore the parser function.

To clear one or several internal variables, list the as parameters to : e.g.,.