Validator
Tiny modular validator.
Install
You can use npm or yarn to install it.
$ npm install --save @alidatorjs/validator
$ yarn add @alidatorjs/validator
Then with Node.js or a module bundler, use as you would anything else:
// using ES6 modules
import { validator } from '@alidatorjs/validator'
// using CommonJS modules
var { validator } = require('@alidatorjs/validator')
Usage
You can choose between validate every error or some of the errors, and receive a boolean, or validate the errors or the successes, and receive an array the value defined by you.
Every
Is as easy as define an array with the validations, and specify if is needed to validate every of the values
import { validator } from '@alidatorjs/validator';
import { isFalsy } from '@alidatorjs/is-falsy';
import { isGreaterThan } from '@alidatorjs/is-greater-than';
import { isLessThan } from '@alidatorjs/is-less-than';
import { isTruthy } from '@alidatorjs/is-truthy';
const isValid = validator([
isFalsy(false),
isGreaterThan(1, 0),
isLessThan(0, 1),
isTruthy(true),
]).every; // true
Some
Is as easy as define an array with the validations, and specify if is needed to validate some of the values
const isValid = validator([ isGreaterThan(1, 0), isTruthy(true) ]).some; // true
Errors
Is the way to define an error actions if the condition is false.
const errors = validator([
[isFalsy(false), () => 'message'],
[isFalsy(true), () => 'Error 1'],
[isFalsy('tralala'), () => 'Error 2'],
[isFalsy(0), () => 'message'],
[isFalsy(NaN), () => 'message'],
]).errors; // ['Error 1', 'Error 2']
Successes
Is the way to define a success action if the condition is true
const successes = validator([
[isTruthy(true), () => 'Success 1'],
[isTruthy(false), () => {}],
[isTruthy(true), () => 'Success 2'],
[isTruthy(false), () => {}],
]).successes; // ['Success 1', 'Success 2']
Create a validation
It has to return a boolean.
export const isGreaterThan = (bigger, smaller) => bigger > smaller;