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#The syntax for creating a scalar is: $variableName = <value>
# in which value may be numeric (integer or float),
# string
# reference (scalar, array, hash, code, or package)
# or boolean (True or False)
$scalar1 = 'this is a scalar'; # simple scalar assigned 'this is string'
$print = 10.0; # simple scalar assigned 10 (rounding is done)
$print = '10.0'; # number that is also a string, assigned 10.0.
$scalar2 = "this is $print"; # interpolation, assigned 'this is 10.0'
$scalar3 = 'this is $print'; # non-interpolation, assigned 'this is $print'
$emptyString = ''; # empty string.
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