@justinc/all-included-validator v1.0.0

all-included-validator

Install

npm i @justinc/all-included-validator

Demo

(look at tests for more examples)

// NOTE: run  `node repl.js` to see this in action:
const allIncluded = require('@justinc/all-included-validator')

const ids = [1, 2, 3, 4, 5]
const refs = [1, 2]
const nums = [2, 4, 2, 3, 1]
const over9000s = [9001, 9002]

const allIncludedInIds = allIncluded(ids)
const allIncludedInOver9000s = allIncluded(over9000s)

console.log(allIncludedInIds(refs)('The following refs are not in ids: '))
// [ true, [] ]

console.log(allIncludedInIds(nums)())
// [true, [] ]

const allOver9000sIncludedInIds = allIncludedInIds(over9000s)
console.log(allOver9000sIncludedInIds('The following are not in ids: '))
// [ false, [ new Error('The following are not in ids: 9001, 9002') ]]

console.log(allOver9000sIncludedInIds('Ids knows not of these: '))
// [ false, [ new Error('Ids knows not of these: 9001, 9002') ]]

console.log(allIncludedInOver9000s(ids)(`These ids aren't even over 9000: `))
// [ false, [ new Error(`These ids aren't even over 9000: : 1, 2, 3, 4, 5`) ]]

combine-validations

If you're OK with using Folktale Validation, you might be interested in combine-validations.

To use this package with combine-validations you will need to convert its output Tuple<Boolean, Array<Error>> to a Folktale Validation with something like this:

const Validation = require('data.validation')
const allIncluded = require('@justinc/all-included-validator')
const combineValidations = require('@justinc/combine-validations')

const { Success, Failure } = Validation

const asValidation = ([isValid, errors]) => isValid ? Success(true) : Failure(errors)

const ids = ['node1', 'node2', 'node3']
const dependencies = [ 'node1', 'node3' ]
const validation = combineValidations([
  asValidation(allIncluded(ids)(dependencies)())
])

Tutorials

TODO: A JSDoc 3 tutorial (re currying) needs to be injected in this README.md. For now there's only a link:

• tutorial: curry.md
• issue: jsdoc2md/jsdoc-to-markdown#115

Modules

@justinc/all-included-validator

@justinc/all-included-validator~allIncluded(iterableA, iterableB, errMsgPrefix) ⇒ Tuple.<Boolean, Array.<Error>>

This function is curried. Checks that all elements in the given 2nd iterable are members of the given 1st iterable.

Kind: inner method of @justinc/all-included-validator
See: Tuple

@justinc/jsdocs

This module houses JSDoc 3 type definitions which can be re-used in different packages.

@justinc/jsdocs.Tuple : Array

The type Tuple is an Array of fixed length whose elements at specific indices are of the specified types.

Kind: static typedef of @justinc/jsdocs
Example

// A Tuple of arity (length) 2, whose first el is a Boolean and second el is
// an Array of Error:
Tuple<Boolean, Array<Error>>
// e.g. [ true, [] ]
// e.g. [ false, [ new Error('computer says no') ] ]

Example

// A Tuple of arity (length) 3, whose first el is a String, and both the
// second and third els are an Array of String:
Tuple<String, Array<String>, Array<String>>
// e.g. [ 'hello', [ 'world' ], [ 'goodbye', 'world' ] ]