When gulp compiles and packages with watch, how to tell that a folder in dist is empty?

how can gulp tell that a folder in dist is empty when it is compiled and packaged with watch, which means that all the files in this folder have been deleted, but I can"t tell that the folder in dist is empty, so I can"t delete the empty folder

Watch gulp gulp4
Sep.21,2021

Previous: Mpvue installation sass error

Next: Production environment JVM memory size configuration

css mysql arrays josn react html typescript webpack npm sass R objective-c .net sql-server jquery python-3.x angularjs django angular excel regex iphone ajax linux xml pandas vba spring database wordpress string wpf xcode windows bash postgresql oracle multithreading eclipse list firebase algorithm macos forms image scala visual-studio azure bootstrap spring-boot react-native python-2.7 docker performance function winforms matlab powershell apache dataframe api sqlite numpy rest shell selenium flutter dart maven loops qt swing android-studio csv express file class tensorflow sorting codeigniter perl
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b386a9-2c118.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b386a9-2c118.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?