Forg.js is a Lightweight JavaScript Object Validator

Published on by

Forg.js is a Lightweight JavaScript Object Validator image

Forg is a lightweight JavaScript object validator by @oussamahamdaoui that simplifies complex validation rules on the frontend. Here are some examples from the project’s readme:

const { Validator, Rule } = require('@cesium133/forgjs');
 
const emailRule = new Rule({
type: 'email',
user: user => user === 'dedede',
domain: domain => ['outlook', 'gmail', 'yahoo'].indexOf(domain) !== -1,
}, null);
 
const passwordRule = new Rule({
type: 'password',
minLength: 8,
uppercase: 1,
numbers: 1,
matchesOneOf: ['@', '_', '-', '.', '!'],
}, null);
 
const vComplexe = new Validator({
age: new Rule({ type: 'int', min: 18, max: 99 }),
dateOfBirth: new Rule({ type: 'date' }),
array: new Rule({ type: 'array', of: new Rule({ type: 'string' }) }),
email: emailRule
pasword: passwordRule
});
 
vComplexe.test({
age: 26,
dateOfBirth: new Date(1995, 10, 3),
array: ['1'],
email: 'my-email@yahoo.fr;',
password: 'ad1_A@@Axs',
}); /// returns true

Once you have a validator instance, you can get the errors from the validator:

vComplexe.getErrors({
age: 16,
dateOfBirth: 123,
}); // ['age must be integer and between 18 and 99', 'date must be a date']

I am using this library on the frontend for form validation in SPA applications using Vue. You can make some pretty neat validation rules with this package, like the password rule type (see the first example above).

You can use this package to validate any object, and in my case, using data that are bound to a Vue component to give back error messages on the frontend easily.

You can check out the source code at oussamahamdaoui/forgJs on GitHub and install the NPM package with:

npm install @cesium133/forgjs
Paul Redmond photo

Staff writer at Laravel News. Full stack web developer and author.

Cube

Laravel Newsletter

Join 40k+ other developers and never miss out on new tips, tutorials, and more.

image
Tinkerwell

Version 4 of Tinkerwell is available now. Get the most popular PHP scratchpad with all its new features and simplify your development workflow today.

Visit Tinkerwell
Laravel Forge logo

Laravel Forge

Easily create and manage your servers and deploy your Laravel applications in seconds.

Laravel Forge
Tinkerwell logo

Tinkerwell

The must-have code runner for Laravel developers. Tinker with AI, autocompletion and instant feedback on local and production environments.

Tinkerwell
No Compromises logo

No Compromises

Joel and Aaron, the two seasoned devs from the No Compromises podcast, are now available to hire for your Laravel project. ⬧ Flat rate of $7500/mo. ⬧ No lengthy sales process. ⬧ No contracts. ⬧ 100% money back guarantee.

No Compromises
Kirschbaum logo

Kirschbaum

Providing innovation and stability to ensure your web application succeeds.

Kirschbaum
Shift logo

Shift

Running an old Laravel version? Instant, automated Laravel upgrades and code modernization to keep your applications fresh.

Shift
LoadForge logo

LoadForge

Easy, affordable load testing and stress tests for websites, APIs and databases.

LoadForge
Paragraph logo

Paragraph

Manage your Laravel app as if it was a CMS – edit any text on any page or in any email without touching Blade or language files.

Paragraph
Lucky Media logo

Lucky Media

Bespoke software solutions built for your business. We ♥ Laravel

Lucky Media
Lunar: Laravel E-Commerce logo

Lunar: Laravel E-Commerce

E-Commerce for Laravel. An open-source package that brings the power of modern headless e-commerce functionality to Laravel.

Lunar: Laravel E-Commerce
Bacancy - Staff Augmentation logo

Bacancy - Staff Augmentation

Leave your web app development hustles to the leading IT Staff Augmentation Service Providers. Choose from an extensive pool of 1050+ developers and give yourself the sigh of success you deserve with Bacancy. Get In Touch Today!

Bacancy - Staff Augmentation
DocuWriter.ai logo

DocuWriter.ai

Save hours of manually writing Code Documentation, Comments & DocBlocks, Test suites and Refactoring.

DocuWriter.ai
Rector logo

Rector

Your partner for seamless Laravel upgrades, cutting costs, and accelerating innovation for successful companies

Rector

The latest

View all →
Add Architecture Tests to Saloon API Integrations with Lawman image

Add Architecture Tests to Saloon API Integrations with Lawman

Read article
Protect Routes with JWT Tokens Using This Package for Laravel image

Protect Routes with JWT Tokens Using This Package for Laravel

Read article
Increment a Rate Limiter by a Custom Amount in Laravel 10.46 image

Increment a Rate Limiter by a Custom Amount in Laravel 10.46

Read article
Add Kanban Boards to Your Laravel App in Seconds image

Add Kanban Boards to Your Laravel App in Seconds

Read article
October CMS v3.6 Ships Today, Full of New Features image

October CMS v3.6 Ships Today, Full of New Features

Read article
Laracon EU Videos are now out image

Laracon EU Videos are now out

Read article