Interface Nothing<T>

Method variant for and

Method variant for andThen

Method variant for ap

Method variant for equals

Method variant for get

If you have a Maybe of an object type, you can do thatMaybe.get('a key') to look up the next layer down in the object.

type DeepOptionalType = {
  something?: {
    with?: {
      deeperKeys?: string;
    }
  }
};

const fullySet: DeepType = {
  something: {
    with: {
      deeperKeys: 'like this'
    }
  }
};

const deepJust = Maybe.of(fullySet)
  .get('something')
  .get('with')
  .get('deeperKeys');

console.log(deepJust); // Just('like this');

const partiallyUnset: DeepType = { something: { } };

const deepEmpty = Maybe.of(partiallyUnset)
  .get('something')
  .get('with')
  .get('deeperKeys');

console.log(deepEmpty); // Nothing
Copy

Method variant for map

Method variant for mapOr

Method variant for mapOrElse

Method variant for match

Method variant for or

Method variant for orElse

Method variant for toJSON

Method variant for toString

Method variant for unwrapOr

Method variant for unwrapOrElse