@pacote/validation

The Validation<T, E> data type is a Result that accumulates multiple errors.

Installation

yarn add @pacote/validation
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Example

import { validation, lift } from '@pacote/validation'
import { Ok, Err } from '@pacote/result'

const hasLetter = lift((s: string) =>
  s.match(/[a-z]/i) ? Ok(s) : Err('no letters')
)
const hasDigit = lift((s: string) =>
  s.match(/[0-9]/) ? Ok(s) : Err('no digits')
)

const validate = validation(hasLetter, hasDigit)

validate('-') // => Err(['no letters', 'no digits'])
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License

MIT © Luís Rodrigues.