Unknown::Values::Instance::Fatal - Internal fatal value object for the "Unknown::Values" distribution

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OVID/Unknown-Values-0.102 - 21 Jan 2022 16:44:30 UTC

Unknown::Values - Use 'unknown' values instead of undef ones

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This code is alpha. Some behavior may change. The module name may change. This module provides you with two new keywords, "unknown" and "is_unknown". "unknown" is conceptually similar to the SQL "NULL" value. From the point of view of logic, this oft...

OVID/Unknown-Values-0.102 - 21 Jan 2022 16:44:30 UTC

Unknown::Values::Instance::Object - Internal null value object for the "Unknown::Values" distribution

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"use Unknown::Values ':OBJECT'" implements a variation of the NULL object pattern <https://en.wikipedia.org/wiki/Null_object_pattern>. In addition to having all of the behavior of Unknown::Values, you can call any method on the object and it will ret...

OVID/Unknown-Values-0.102 - 21 Jan 2022 16:44:30 UTC