Home›Browse›option type🌐EnglishEnglishEspañolPolski한국어中文日本語EntityQ7099015· pop 8· linked from 121 articlesoption typeSign in to saveAlso known as maybe type, optionalencapsulation of an optional value in programming or type theoryAvailable in 7 languagesEspañol中文日本語AlbanianPolski한국어via Wikidata sitelinks · CC0