Well, the biggest problem with using + for concatenate in Perl is
that it introduces ambiguity. Consider:
print "Enter a number: ";
chomp(my $num1 = <STDIN>);
print "Enter another number: ";
chomp(my $num2 = <STDIN>);
print "$num1 + $num2 is ", $num1 + $num2, "\n";
Right now, the + means numerical addition so Perl converts those
strings read in from STDIN to numbers, adds them, and converts the
result back to a string to print it. In other words, now the operator
(+ or .) imposes context (numeric or string) on its operands. Would
you prefer having to do explicit type declarations or casting to
provide context to the operator?
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