React Hook Form provides performant, flexible forms. Here's how to use it effectively.
Basic Setup
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Validation Rules
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Zod Integration
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Controller for Custom Components
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Form Arrays
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Form State and Methods
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Reusable Form Components
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Server-Side Validation
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Best Practices
Performance:
✓ Use uncontrolled inputs (register)
✓ Isolate re-renders with Controller
✓ Use mode: 'onBlur' for large forms
✓ Avoid watching entire form
Validation:
✓ Use Zod for complex schemas
✓ Show errors on blur or submit
✓ Validate on server too
✓ Provide clear error messages
Structure:
✓ Create reusable input components
✓ Type forms with interfaces
✓ Use defaultValues
✓ Handle loading and error states
Conclusion
React Hook Form provides excellent performance through uncontrolled inputs while maintaining flexibility. Use Zod for schema validation, Controller for custom components, and useFieldArray for dynamic lists. The minimal re-render approach makes it ideal for complex forms.