robin barker dozhixyupvhnplcouk print map 1 2 3 _ 4 prints nothing scalar context map returns number elements generated scalar context expecting sort reference map returns 1 scalar context print prints 1 perl lwe print map 1 2 3 _ 4 perl mstrict lwe print map 1 2 3 _ 4 cant use string 1 array ref strict refs use e line 1 perl lwe 1 qwhello world print map 1 2 3 _ 4 helloworld however works perl lwe print map 1 2 3 _ 40 1234 robin email attachments may contain confidential andor privileged material intended addressees named addressee must use retain disclose information npl management ltd guarantee email attachments free viruses npl management ltd registered england wales 2937881 registered office serco house 16 bartley wood business park hook hampshire united kingdom rg27 9uy wed 06 aug 2008 193955 0100 perl 46543 strange behavior map inside