Template:When in sandbox/doc



Returns "/sandbox" if the template detects that the page where it is transcluded is a subpage named "sandbox" (i.e. is a sandbox page); otherwise it returns nothing –or, if supplied, the second unnamed parameter.

This can be useful to e.g. switch the version of a template used in its /doc[umentation] to the version in its sandbox (by replacing {{template's_name|undefined ... on the /doc page with e.g. {{template's_name |undefined ...) when that documentation is transcluded on the template's sandbox page.