| > > ... For instance this way, one could try to patch booleans in a way that they stringify to "false" and "true" like in JS. ...
> This is what boolean does.
well, not yet:
>>> "stringification: " + (1==1)
say "stringification:" . (1==1);
/usr/bin/perl -w /tmp/boolean.pl
but using dualvars could help.
use Scalar::Util qw/dualvar/;
my $false = dualvar 0, "false";
my $true = dualvar 1, "true";
say "stringification:" . $true;
say "numification: " . (0+$true);
say "stringification: " . $false;
say "numification: " . (0+$false);
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