whichreturnsastringcontainingthenewdestinationandfilename.Thisfunctioniscalledforeachmatchedsrcfile(afterextensionrenamingandflattening).Moreinformation 在下面的例子中,uglify任务中的static_mappings
}).then(function(result){result.map//=>'{"version":3,//"file":"app.css",//"sources":["app.sass"],//"mappings