πŸ“‹
MODULE 11Intermediate β†’ Advanced

React Hook Form + Zod

React Hook Form provides performant, flexible forms with minimal re-renders. Zod provides TypeScript-first schema validation. Together they're the gold standard for type-safe form handling in React.

react-hook-formzod@hookform/resolversuseFieldArrayzodResolver

Why React Hook Form?

πŸš€ Performance

Uncontrolled inputs by default β€” no re-render on every keystroke. Only re-renders when errors change.

πŸ”· Type Safety

Full TypeScript support. Zod schema infers your form type β€” no duplicate type definitions.

⚑ DX

One hook call sets up registration, validation, errors, and submit handling. Works with any UI library.

1. Registration Form

useForm Β· zodResolver Β· formState Β· cross-field validation

Registration Form

Full registration form with Zod schema validation, cross-field validation (password match), and real-time error feedback.

isDirty: falseΒ | isValid: false
Zod SchemaTypeScript
// 1. Define Zod schema
const loginSchema = z.object({
  email:    z.string().email('Invalid email'),
  password: z.string().min(8, 'Min 8 chars'),
})

// 2. Infer TypeScript type
type LoginForm = z.infer<typeof loginSchema>

Zod Quick Reference

z.string()string
z.number()number
z.boolean()boolean
z.date()Date
z.enum([…])'a'|'b'|…
z.array(schema)T[]
z.object({…})shape
.optional()T | undefined
.nullable()T | null
.default(val)uses val if undefined
.transform(fn)T β†’ U
.refine(fn, msg)custom validation
z.infer<typeof s>extract TS type