subs - Perl pragma to predeclare sub names
- use subs qw(frob);
- frob 3..10;
This will predeclare all the subroutine whose names are in the list, allowing you to use them without parentheses even before they're declared.
Unlike pragmas that affect the
hints variable, the
declarations are not BLOCK-scoped. They are thus effective
for the entire file in which they appear. You may not rescind such