About: Option type

Property	Value
dbo:description	typ polimorficzny (pl) 存在しない可能性のある値をカプセル化して表す多相型 (ja) encapsulation of an optional value in programming or type theory (en)
dbo:wikiPageWikiLink	dbr:Unit_type dbr:Functional_programming dbr:Null_object_pattern dbr:Object-oriented_programming dbr:Parametric_polymorphism dbr:Type_theory dbr:Absorption_law dbc:Data_types dbr:Programming_language dbc:Type_theory dbr:Nullable_type dbr:Exception_handling dbr:Tagged_union dbr:Pattern_matching dbc:Functional_programming dbr:Curry–Howard_correspondence dbr:Maybe_monad dbr:Result_type dbr:Collection_(abstract_data_type)
dbp:date	August 2019 (en) July 2022 (en)
dbp:title	It is unclear how this is the case, and there are no links to external references that explain this. (en)
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dbp:with	example usage (en) the definition (en)
dct:subject	dbc:Articles_with_example_C++_code dbc:Articles_with_example_OCaml_code dbc:Data_types dbc:Articles_with_example_Rust_code dbc:Type_theory dbc:Articles_with_example_Swift_code dbc:Articles_with_example_Haskell_code dbc:Articles_with_example_Scala_code dbc:Functional_programming
rdfs:label	Option type (en) Tipo opcional (es) Option型 (ja) Typ Optional (pl) 可选类型 (zh)
owl:sameAs	freebase:Option type wikidata:Option type dbpedia-zh:Option type dbpedia-ja:Option type dbpedia-es:Option type dbpedia-pl:Option type dbpedia-global:Option type
prov:wasDerivedFrom	wikipedia-en:Option_type?oldid=1280303659&ns=0
foaf:isPrimaryTopicOf	wikipedia-en:Option_type
is dbo:wikiPageDisambiguates of	dbr:Option
is dbo:wikiPageRedirects of	dbr:Optional_type dbr:Maybe_type
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is rdfs:seeAlso of	dbr:Null_(SQL)
is foaf:primaryTopic of	wikipedia-en:Option_type