Function flatMap

flatMap<T, U>(fn: (value: T) => Option<U>, option: Option<T>): Option<U>
Returns None if the option is None, otherwise calls the function with the wrapped value and returns the result.
Type Parameters
- T
- U
Parameters
- fn: (value: T) => Option<U>
  Flat map function.
- option: Option<T>
  Option to flat map.
Returns Option<U>
Flat mapped Option.
- Defined in index.ts:167