True Myth / result / ResultConstructor

Interface: ResultConstructor

The public interface for the Result class as a value: the static constructors ok and err produce a Result with that variant.

Properties

err()

err: {<T, E>(): Result<T, Unit>; <T, E>(error): Result<T, E>; }

Call Signature

<T, E>(): Result<T, Unit>

Create an instance of Err.

const anErr = Result.err('alas, failure');

Type Parameters

T

T = never

E

E = unknown

Returns

Result<T, Unit>

Call Signature

<T, E>(error): Result<T, E>

Create an instance of Err.

const anErr = Result.err('alas, failure');

Type Parameters

T

T = never

E

E = unknown

Parameters

error

E

The value to wrap in an Err.

Returns

Result<T, E>

---

ok()

ok: {(): Result<Unit, never>; <T, E>(value): Result<T, E>; }

Call Signature

(): Result<Unit, never>

Create an instance of Ok.

Note that you may explicitly pass Unit to the ok constructor to create a Result<Unit, E>. However, you may not call the ok constructor with null or undefined to get that result (the type system won't allow you to construct it that way). Instead, for convenience, you can simply call `Result.ok()`, which will construct the type correctly.

Returns

Result<Unit, never>

Call Signature

<T, E>(value): Result<T, E>

Type Parameters

T

T

E

E = never

Parameters

value

T

The value to wrap in an Ok.

Returns

Result<T, E>