Cursor ui

Form Validation Logic Removed by Cursor

After Cursor refactored your form code, client-side validation was removed. Forms now accept invalid input and submit it to the server, wasting resources and potentially causing errors.

Validation functions or checks were deleted during the refactoring.

Error Messages You Might See

Form submitted with empty fields Invalid email accepted No validation errors shown Server rejects invalid data

Common Causes

  1. Validation functions deleted as 'dead code'
  2. Form submit handler no longer calls validate()
  3. Input onChange handlers not updating validation state
  4. Validation error messages not displaying
  5. HTML5 validation attributes removed

How to Fix It

Add validation function: function validate(data) { if (!data.email) return 'Email required'; }. Call on form submit. Show errors: {errors.email && <span>{errors.email}</span>}. Use libraries: react-hook-form, formik. Add HTML5: <input required type='email' />.

Real developers can help you.

Tejas Chokhawala 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. Caio Rodrigues 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.** Dor Yaloz Dor Yaloz SW engineer with 6+ years of experience, I worked with React/Node/Python did projects with React+Capacitor.js for ios Supabase expert Matthew Butler Matthew Butler Systems Development Engineer @ Amazon Web Services Krishna Sai Kuncha Krishna Sai Kuncha Experienced Professional Full stack Developer with 8+ years of experience across react, python, js, ts, golang and react-native. Developed inhouse websearch tooling for AI before websearch was solved : ) Jared Hasson Jared Hasson Full time lead founding dev at a cyber security saas startup, with 10 yoe and a bachelor's in CS. Building & debugging software products is what I've spent my time on for forever Omar Faruk Omar Faruk As a Product Engineer at Klasio, I contributed to end-to-end product development, focusing on scalability, performance, and user experience. My work spanned building and refining core features, developing dynamic website templates, integrating secure and reliable payment gateways, and optimizing the overall system architecture. I played a key role in creating a scalable and maintainable platform to support educators and learners globally. I'm enthusiastic about embracing new challenges and making meaningful contributions. Rudra Bhikadiya Rudra Bhikadiya I build and fix web apps across Next.js, Node.js, and DBs. Comfortable jumping into messy code, broken APIs, and mysterious bugs. If your project works in theory but not in reality, I help close that gap. Richard McSorley Richard McSorley Full-Stack Software Engineer with 8+ years building high-performance applications for enterprise clients. Shipped production systems at Walmart (4,000+ stores), Cigna (20M+ users), and Arkansas Blue Cross. 5 patents in retail/supply chain tech. Currently focused on AI integrations, automation tools, and TypeScript-first architectures. Pratik Pratik SWE with 15+ years of experience building and maintaining web apps and extensive BE infrastructure

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Frequently Asked Questions

What's the difference between client and server validation?

Client validation is UX (immediate feedback). Server validation is security (trust no client). Always validate both.

What validation library should I use?

react-hook-form for performance, Formik for features, Yup/Zod for schema validation. Choose based on needs.

Related Cursor Issues

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