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by mark242 3428 days ago
Option is a takeoff of the Null Object pattern.

Option(null).map(str => str + "!").foreach(str => println(str)) is a noop.

2 comments

Yeah, the Null Object Pattern is just optionals except you have to re-implement it each you need optional semantics.
No. They're opposites.

"...an object which implements the expected interface, but whose method body is empty. "

https://en.wikipedia.org/wiki/Null_Object_pattern