catfish1116 has asked for the wisdom of the Perl Monks concerning the following question:

I'm trying to figure out the chr() function, and have written a few lines of code: 

#!/usr/bin/perl
use v5.12;
use warnings;

     $alpha = chr(65);
     say "This is what Alpha looks like $alpha". "\n";

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And I'm getting this error 

 Global symbol "$alpha" requires explicit package name at ./Page_34 li
+ne 5.
Global symbol "$alpha" requires explicit package name at ./Page_34 lin
+e 6.

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What package is it looking for? TIA catfish

Replies are listed 'Best First'.
Re: chr() function
by LanX (Saint) on Nov 13, 2018 at 21:53 UTC
    You have strict activated when using 5.12.

    Write my $alpha = ...

    Perl can't tell if it's a private (my) or global package (our) variable.

    So it takes a guess and asks you to make it clear by prepending a name space.

    our $var is basically an alias of the fully qualified $Pkg::var with the current package at declaration time.

    And yes this error message is confusing because nowadays most declarations are done with my , which doesn't have a name space.

    Cheers Rolf
    (addicted to the Perl Programming Language :)
    Wikisyntax for the Monastery FootballPerl is like chess, only without the dice

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      Thank you sir !
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