Function map

map<T, U>(maybe: Maybe<T>, fn: (value: T) => U): Maybe<U>
Transform the Some value, passing None through unchanged. Dual-form.
Type Parameters
- T
- U
Parameters
- maybe: Maybe<T>
- fn: (value: T) => U
Returns Maybe<U>
Example
```
map(some(2), (n) => n * 3);                      // Some 6 — data-first
pipe(fromNullable(input), map((s) => s.trim())); // curried
```
- Defined in maybe.ts:76
map<T, U>(fn: (value: T) => U): (maybe: Maybe<T>) => Maybe<U>
Transform the Some value, passing None through unchanged. Dual-form.
Type Parameters
- T
- U
Parameters
- fn: (value: T) => U
Returns (maybe: Maybe<T>) => Maybe<U>
Example
```
map(some(2), (n) => n * 3);                      // Some 6 — data-first
pipe(fromNullable(input), map((s) => s.trim())); // curried
```
- Defined in maybe.ts:77