Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl: the Markov chain saw

Re: Share data among different packages

by JavaFan (Canon)
on Dec 22, 2010 at 14:01 UTC ( #878536=note: print w/ replies, xml ) Need Help??

in reply to Share data among different packages

I know it's not good a idea to use global variables and global data structures.
That's the disadvantage of sound-bites. They evolve into dogmas, and people take it for gospel.

It's a bad idea to use global variables and global data structures for local use. But if you want information to be accessible globally, there's nothing wrong with global variables. ("Singleton solution" make use of global variables as well - it's just a global coderef instead of global scalar/array/hash). The alternative is to set up your data locally, and pass references to it to every subroutine that either needs it, or calls (directly or indirectly) a subroutine that needs it.

Comment on Re: Share data among different packages
Replies are listed 'Best First'.

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://878536]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others pondering the Monastery: (5)
As of 2015-11-29 12:13 GMT
Find Nodes?
    Voting Booth?

    What would be the most significant thing to happen if a rope (or wire) tied the Earth and the Moon together?

    Results (750 votes), past polls