OptionalofNullableinputorElsedefaultValue
OptionalofNull refers to the programming practice of using an optional type to represent the potential absence of a value, typically to avoid direct handling of null. While not a standardized term, it is used to discuss how languages implement optional or nullable wrappers (for example, Java's Optional, Scala's Option, or Haskell's Maybe) to encode present or absent data rather than relying on null references.
The core idea is that a value may exist or be missing, and the optional type provides
In practice, optional wrappers are used to avoid null-related errors and to make absence explicit in APIs.
Notes and cautions: overuse can obscure intent or degrade performance, and language-specific guidelines often advise using