• String operations apply a string context

        my $string;
        my $number;                  # Empty string in string context
        $string = $number . 17;	     # Concatenate
        print "String is '$string'\n";

        $number = 5.2;               # "5.2" in string context
        $string = $number . 17;
        print "String is '$string'\n";

        $number = 5.2;
        $string = sprintf("%.2f", $number); # Formatting
        print "String is '$string'\n";
      

        String is '17'
        String is '5.217'
        String is '5.20'