1 | Arbitrary multidimensional Arrays for list [] and Hash {} sectors |
2 | Modules allow convenient library structure |
3 | Functional but slightly adhoc object oriented class structure hacked onto existing Perl4 |
4 | C/C++ can be called from Perl and vice versa |
5 | tie/untie allow more general database interfaces |
6 | AUTOLOAD allows arbitrary action for undefined subroutines |
7 | subroutines now can be predeclared before implementation |