Nodes for the term “none”

Scala: How to use higher-order functions (HOFs) with Option (instead of match expressions)

A Scala Either, Left, and Right example (like Option, Some, and None)

Functional error handling in Scala

Scala best practice: How to use the Option/Some/None pattern

Scala: Idiomatic processing of an Option

How to declare, set, and use Option, Some, and None fields in Scala

Scala Option, Some, None syntax examples

Using the Scala Option, Some, and None idiom (instead of Java null)

More null values seen in the wild

Scala best practices: null values, Option, Some, and None

Initialize Scala variables with Option, None, and Some (not null)

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