Web DevelopmentIntermediate 3 to 5 hours

Dynamic Fields & Zod Validation

Handle dynamic form fields and complex validation schemas.

The Scenario

The basic wizard was a success, but the business logic has become much more complex. If the user selects "Married", a whole new section for "Spouse Details" must appear. Furthermore, the validation rules are getting out of hand (e.g., age must be > 18 but < 100, zip code must match the selected state).

The Brief

Upgrade the form to use a dedicated validation library (like Zod or Yup) and a form state manager (like React Hook Form or Formik). Implement conditional rendering: fields should appear or disappear based on the answers to previous questions. Ensure the validation schema updates dynamically based on these conditions.

Deliverables

  • The validation schema definition (e.g., the Zod object)
  • The React component showing the conditional rendering logic
  • A brief explanation of why integrating a library like React Hook Form improves performance over raw `useState`

Submission Guidance

This task tests your ability to use industry-standard tools. Do not write custom validation logic for complex rules; rely on the schema library to do the heavy lifting safely.

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