validate-it

declarative validator

Usage no npm install needed!

<script type="module">
  import validateIt from 'https://cdn.skypack.dev/validate-it';
</script>

README

validate-it

Decalarative validator for JS

NPM version Build Status Coverage Status Dependency Status devDependency Status

Installation

$ npm install validate-it

Usage

var validateIt = require('validate-it');

At least you must specify the name of the object to validate

It's check that data's property password is not undefined:

var rule = {name: 'password'};
var data = {password: 'qwerty'};

validateIt(data, rule); // => {}

Rules can be an array:

var rules = [
    {name: 'password'}, 
    {name: 'login'}
];
var data = {password: 'qwerty'};

validateIt(data, rules); // => { login: 'Is required' }

Built-in validators

Will be used only if it is declared in the rule!

empty

var data = {login: ''};
var rule = {name: 'login', empty: false};

validateIt(data, rule); // => { login: 'Is empty' }

len

var data = {login: 'short'};
var rule = {
    name: 'login',
    len: [9, 20]
};
validateIt(data, rule); // => { login: 'Expected [9,20] symbols. Given: 5' }

var data = {login: 'short'};
var rule = {name: 'login', len: 6};
validateIt(data, rule); // => { login: 'Expected min 6 symbols. Given: 5' }

License

MIT