Form Validation Logic Partially Implemented
A form was scaffolded with basic structure but validation is incomplete. Some fields check for empty values but don't validate format (emails, phone numbers). Others bypass validation entirely due to missing checks. Invalid data is submitted to backend.
Frontend validation is partially implemented but inconsistent across form fields.
Error Messages You Might See
Common Causes
- Validation logic written for some fields but not all form fields
- Validation doesn't prevent form submission (submit button not disabled)
- Format validators missing (email regex, phone format, date range)
- Error messages not shown to user, validation happens silently
- Backend validation doesn't match frontend, causing confusing UX mismatch
How to Fix It
Complete validation for all fields. Add format validation beyond 'not empty' (email regex, length limits). Disable submit button until form valid. Display error messages next to invalid fields. Always validate on backend too, never trust frontend validation. Use a form library (Formik, React Hook Form) for consistency.
Real developers can help you.
Meïr Ankri
Full-stack developer specializing in React / Next.js / Node.js with 6+ years of experience. I've worked across various sectors including automotive (Reezocar/Société Générale), healthcare (Medical Link SaaS), and e-commerce (Glasman). I build web apps end-to-end, from architecture to production, with a focus on scalability, performance, and code quality. I also mentor junior developers and contribute to technical decisions and code reviews.
Prakash Prajapati
I’m a Senior Python Developer specializing in building secure, scalable, and highly available systems. I work primarily with Python, Django, FastAPI, Docker, PostgreSQL, and modern AI tooling such as PydanticAI, focusing on clean architecture, strong design principles, and reliable DevOps practices. I enjoy solving complex engineering problems and designing systems that are maintainable, resilient, and built to scale.
Tejas Chokhawala
Full-stack engineer with 5 years experience building production web apps using React, Next.js and TypeScript.
Focused on performance, clean architecture and shipping fast.
Experienced with Supabase/Postgres backends, Stripe billing, and building AI-assisted developer tools.
Franck Plazanet
I am a Strategic Engineering Leader with over 8 years of experience building high-availability enterprise systems and scaling high-performing technical teams. My focus is on bridging the gap between complex technology and business growth.
Core Expertise:
🚀 Leadership: Managing and coaching teams of 15+ engineers, fostering a culture of accountability and continuous improvement.
🏗️ Architecture: Enterprise Core Systems, Multi-system Integration (ERP/API/ETL), and Core Database Structure.
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I thrive on "out-of-the-box" thinking to solve complex technical bottlenecks and am always looking for ways to use automation to improve business productivity.
Victor Denisov
Developer
Caio Rodrigues
I'm a full-stack developer focused on building practical and scalable web applications. My main experience is with **React, TypeScript, and modern frontend architectures**, where I prioritize clean code, component reusability, and maintainable project structures.
I have strong experience working with **dynamic forms, state management (Redux / React Hook Form), and complex data-driven interfaces**. I enjoy solving real-world problems by turning ideas into reliable software that companies can actually use in their daily operations.
Beyond coding, I care about **software quality and architecture**, following best practices for componentization, code organization, and performance optimization.
I'm also comfortable working across the stack when needed, integrating APIs, handling business logic, and helping transform prototypes into production-ready systems.
My goal is always to deliver solutions that are **simple, efficient, and genuinely useful for the people using them.**
Anthony Akpan
Developer with 8 years of experience building softwares fro startups
Matthew Butler
Systems Development Engineer @ Amazon Web Services
Luca Liberati
I work on monoliths and microservices, backends and frontends, manage K8s clusters and love to design apps architecture
Bastien Labelle
Full stack dev w/ 20+ years of experience
You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.
Get HelpFrequently Asked Questions
Should validation happen on change or submit?
On change for improved UX (show errors immediately). But also validate on submit. Backend must validate too.
What should be validated on backend?
All validation from frontend, plus business logic validation that requires database queries (username uniqueness, account status).
How to show validation errors?
Display error message below field using aria-describedby for accessibility. Highlight invalid fields (border-color: red).