bind

bind<K, A, B>(key, f): (data) => Maybe<A & { [P in string]: B }>

Defined in: Core/Maybe.ts:273

Evaluates a new Maybe using the current accumulator and attaches the output to a new key.

Type Parameters

K

K extends string

A

A

B

B

Parameters

key

K

f

(a) => Maybe<B>

Returns

(data) => Maybe<A & { [P in string]: B }>

Example

pipe(
  Maybe.some({ a: 1 }),
  Maybe.bind("b", ({ a }) => Maybe.some(a + 1))
); // Some({ a: 1, b: 2 })