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Re: Better way to define global variables

by Athanasius (Canon)
on Jul 25, 2013 at 14:03 UTC ( #1046349=note: print w/ replies, xml ) Need Help??

in reply to Better way to define global variables

Ok, you now know how to do this. Here’s why you shouldn’t! From Exporter#What-Not-to-Export:

Do not export variable names. Just because Exporter lets you do that, it does not mean you should.

@EXPORT_OK = qw( $svar @avar %hvar ); # DON'T!

Exporting variables is not a good idea. They can change under the hood, provoking horrible effects at-a-distance, that are too hard to track and to fix. Trust me: they are not worth it.

To provide the capability to set/get class-wide settings, it is best instead to provide accessors as subroutines or class methods instead.

Hope that helps,

Athanasius <°(((><contra mundum Iustus alius egestas vitae, eros Piratica,

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