map<U> method
Maps an Option<T>
to Option<U>
by applying a function to a contained
value.
Implementation
Option<U> map<U>(U Function(T value) op) =>
isSome ? Some(op(_someValue)) : None<U>();
Maps an Option<T>
to Option<U>
by applying a function to a contained
value.
Option<U> map<U>(U Function(T value) op) =>
isSome ? Some(op(_someValue)) : None<U>();