Function mapOr

mapOr<U>(init: U): <T>(f: (t: T) => U) => (opt: Option.Option<T>) => U
Maps the optional value with a default value init.
Type Parameters
- U
Parameters
- init: U
  The default value.
Returns <T>(f: (t: T) => U) => (opt: Option.Option<T>) => U
The mapped value or init.

Examples
Example
```
const strLenOrAnswer = mapOr(42)((str: string) => str.length);

expect(strLenOrAnswer(some("Hello, World!"))).toStrictEqual(13);
expect(strLenOrAnswer(none())).toStrictEqual(42);
```
- Defined in src/option.ts:644