Checks whether an option has been explicitly set by a script or from the command line or whether the option has a default value or computed value (return value of a func).
Parameters
| Parameter | Description |
|---|---|
| option_name | String value of the built-in or custom option. |
Returns
Boolean. Returns 1 (true) if the option value has been explicitly set. Returns 0 (false) if the option value is a default value, is null, or has not been explicitly set. For a discussion of Boolean, see vSphere SDK for Perl Programming Conventions.
