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Re: use, require, do or what?

by pc88mxer (Vicar)
on Jul 30, 2008 at 18:57 UTC ( #701233=note: print w/replies, xml ) Need Help??


in reply to use, require, do or what?

When you declare a variable with my it won't be accessible in require-d code. One alternative is to use our instead of my:
our $var; require 'library.pl'; # library.pl contains: # $var = ... print $var, "\n";
However, modifying variables this way in not a great idea. Think about what the purpose of the module is. For instance, if you are using it to compute a function, make the module define a subroutine which is called by your program when it's needed. If is being used to define constants, then consider putting it in its own namespace and exporting the values.

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Corion watches with pleasure that Future::AsyncAwait now also works on 5.16. I think 5.14 is a good baseline for "modern" Perl, and that's only one release away from 5.16
[Corion]: (and I really like the async and await keywords as they do away with lots of anonymous subroutines)

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