Getting Started

Install

The recommended way to install revalidate is with a package manager like yarn or npm.

yarn

yarn add revalidate

npm

npm install --save revalidate

Simple Example

Revalidate exports a few helper functions like createValidator, composeValidators, and combineValidators for creating and composing validators along with some common validations such as isRequired and isAlphabetic.

// ES2015
import {
  createValidator,
  composeValidators,
  combineValidators,
  isRequired,
  isAlphabetic,
  isNumeric
} from 'revalidate';

// Or ES5
var r = require('revalidate');
var createValidator = r.createValidator;
var composeValidators = r.composeValidators;
var combineValidators = r.combineValidators;
var isRequired = r.isRequired;
var isAlphabetic = r.isAlphabetic;
var isNumeric = r.isNumeric;

// Usage
const dogValidator = combineValidators({
  name: composeValidators(
    isRequired,
    isAlphabetic
  )('Name'),

  age: isNumeric('Age')
});

dogValidator({}); // { name: 'Name is required' }

dogValidator({ name: '123', age: 'abc' });
// { name: 'Name must be alphabetic', age: 'Age must be numeric' }

dogValidator({ name: 'Tucker', age: '10' }); // {}