ZygosoptionfilterMapOn this pagefilterMap() filterMap<A, B>(f): (fa) => Option<B> Maps and filters in one operation. Type Parametersโ A: Aโ The input type. B: Bโ The output type. Parametersโ f: (a) => Option<B>โ The mapping function that returns an Option. Returnsโ A function that filterMaps the Option. Sinceโ 2.0.0