> From: Bill Ward <[email protected]>
> This gives you quite friendly policy identifiers
>
> [ValuesAndExpressions::ProhibitConstantPragma] Pragma "constant" used
> at line 22, column 1. (Severity: 4)
>
> What's wrong with 'use constant'?
Well, nothing's "wrong" with it. It does, however, get clumsy in some cases.
For example:
use constant FOO => 3;
print $data->{+FOO};
print "We have @{[FOO]} widgets";
# or
print "We have ".FOO." widgets";
Versus:
use Readonly;
Readonly my $FOO => 3;
print $data->{$FOO};
print "We have $FOO widgets";
Readonly constants are just easier to use and have fewer "gotchas".
Cheers,
Ovid
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