Elegant and composable validations.
Revalidate is a library for creating and composing together small validation functions to create complex, robust validations. There is no need for awkward configuration rules to define validations. Just use functions.
All right. No more upselling. Just look at an example 
.
// 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' }); // {}
Install
Install with yarn or npm.
yarn add revalidate
npm install --save revalidate