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Function: fromResult()

fromResult<T, E>(result): Validation<T, E>

Defined in: validation/constructors/index.ts:171

Converts a Result to a Validation.

Ok becomes Valid, Err becomes Invalid with a single error.

Type Parameters​

T​

T

E​

E

Parameters​

result​

Result<T, E>

The Result to convert

Returns​

Validation<T, E>

A Validation with the same value or error

Example​

import { ok, err } from 'receta/result'

fromResult(ok(42))
// => Valid(42)

fromResult(err('failed'))
// => Invalid(['failed'])

// Real-world: Convert Result-based parsers to Validation
const parseJSON = <T>(str: string): Validation<T, string> =>
  fromResult(Result.tryCatch(() => JSON.parse(str) as T))

See​

toResult - for converting Validation to Result