Usage

Add ((subst:navpop)) to Special:MyPage/common.js. This will add the following code:

// Wikipedia:Tools/Navigation popups
mw.loader.load('/w/load.php?modules=ext.gadget.Navigation_popups');

Alternatively, ((subst:navpop)) can be added to a specific skin (rather than a file that works for all skins, as above):

Note: Special:MyPage/skin.js will redirect to the file for your current skin, if JavaScript is enabled.

See also