References (continued)

Local variables persist even if execution exits their scope if their reference count is greater than zero.

(I.e., local variables can have indefinite extent.)

References can be used for scalars, arrays, hashes, functions and other references.

$scalar = "A Scalar";

$hash{"KEY"} = "A hash entry";

$scalarref = \$scalar;

$hashref = \%hash;

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