📚 NFSFU234FormValidation v3 Documentation
Welcome to the official documentation for NFSFU234FormValidation v3.
Whether you’re validating a single contact form or building a large application with dozens of forms across multiple pages, this documentation is designed to help you move from installation to production with confidence.
Version 3 introduces a completely modernized API, configuration-driven validation, automatic multi-page initialization, improved framework support, file validation, generated API documentation, and much more.
🚀 Start Here
New to the library?
Follow these guides in order for the smoothest learning experience.
| Step | Guide |
|---|---|
| 1 | Getting Started — Learn what the library does and what’s new in Version 3. |
| 2 | Quick Start — Install the package and validate your first form in under five minutes. |
| 3 | Installation — npm, pnpm, Bun, Yarn and CDN installation methods. |
| 4 | Initialization — Understand constructors, configuration, and form resolution. |
| 5 | Usage — Learn validation, submission, AJAX, and common workflows. |
🧩 Core Concepts
Once you’re comfortable with the basics, explore the building blocks of the library.
- Form Configuration
- Custom Error Messages
- AJAX Requests
- Inline Error Messages
- File & Image Validation
- Password Utilities
These guides explain how the validation engine works and how to customize it for your application.
⚡ Advanced Features
Version 3 adds several features designed for larger applications and multi-page websites.
If you’re managing multiple forms across an application, these are the guides you’ll likely use most.
⚛️ Framework Guides
NFSFU234FormValidation works with modern frontend frameworks without requiring framework-specific builds.
Choose the guide that matches your project.
- ▲ Next.js
- ⚡ Vite
- ⚛️ Create React App
- 📱 Expo Web
- 🌐 Plain HTML
📖 API Reference
Looking for a specific method?
The API documentation is generated directly from the source code using TypeDoc, ensuring it always stays synchronized with the latest release.
Browse:
or jump directly to any method or interface from the sidebar.
🔄 Migration
Already using an older version?
These guides explain everything that changed in Version 3.
💻 Examples
Want to see complete applications instead of isolated snippets?
Explore the official examples.
- Browser
- Next.js
- React
- Vite
- Expo Web
🌍 Open Source Ecosystem
NFSFU234FormValidation is part of the growing NFSFU234 open-source ecosystem.
Alongside this library you’ll also find:
- NFSFU234 Form Validation (this library)
- NFSFU234 Tour Guide - A lightweight, framework-friendly library for creating guided tours on your web apps.
- NFSFU234 ShotSweep - A developer tool for capturing clean website screenshots for documentation, testing, automation, and more.
Each project is designed around the same principles:
- Lightweight
- Framework-friendly
- Well documented
- Zero unnecessary dependencies
- Production-ready
🤝 Contributing
Found a bug?
Have an idea for a feature?
Want to improve the documentation?
Community contributions are always welcome.
You can:
- Report bugs on GitHub
- Submit feature requests
- Improve documentation
- Open pull requests
- Help test upcoming releases
🎯 Where Next?
If you’re just getting started, continue with:
If you’re ready to write code immediately:
➡️ Quick Start
Happy building with NFSFU234FormValidation 🚀