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pipelined

mapError

mapError<E, F, A>(f): (data) => Validation<F, A>

Defined in: Core/Validation.ts:142

Transforms the error list inside a Validation.

Type Parameters

Section titled “Type Parameters”

E

Section titled “E”

E

F

Section titled “F”

F

A

Section titled “A”

A

Parameters

Section titled “Parameters”

f

Section titled “f”

(e) => F

Returns

Section titled “Returns”

(data) => Validation<F, A>

Example

Section titled “Example”
pipe(Validation.failed("oops"), Validation.mapError(e => e.toUpperCase())); // Failed(["OOPS"])