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Mixed Programming Languages: Java, .NET, and Perl
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What will be output ? my $val = 'x'; print ref($val);
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A
Empty Value
💡 Explanation:
In Perl, the ref function returns an empty string when the variable passed to it is not a reference. Since $val is a plain string scalar, ref($val) evaluates to an empty string ('Empty Value', 596740) rather than throwing an error or returning a label like SCALAR.