┌───| /usr/share/man ](me@main)[/bin/bash]|[19:55][p:14366][bn:45][j:0]► [0] 
└─$  shopt -s nullglob dotglob

┌───| /usr/share/man ](me@main)[/bin/bash]|[19:55][p:14366][bn:45][j:0]► [0] 
└─$ cd

┌───| ~ ](me@main)[/bin/bash]|[19:55][p:14366][bn:45][j:0]► [0] 
└─$  files=(~/testar/emptydir/*)                                                                                                                                                                                                   

┌───| ~ ](me@main)[/bin/bash]|[19:56][p:14366][bn:45][j:0]► [0] 
└─$  (( ${#files[*]} )) || echo directory is empty
directory is empty

┌───| ~ ](me@main)[/bin/bash]|[19:56][p:14366][bn:45][j:0]► [0] 
└─$  (( ${#files[*]} )) || echo directory is empty
directory is empty

## Afterwards I put a file in ~/testar/emptydir/

┌───| ~ ](me@main)[/bin/bash]|[19:56][p:14366][bn:45][j:0]► [0] 
└─$  (( ${#files[*]} )) || echo directory is empty
directory is empty

???