Form

Building forms with React Hook Form and Zod schema validation.

Username

This is your public display name.

Installation

npm install react-hook-form @hookform/resolvers zod

Usage

import { useForm } from "react-hook-form"
import { zodResolver } from "@hookform/resolver/zod"
import * as z from "zod"

import { Button } from "@/components/ui/button"
import {
  Form,
  FormControl,
  FormDescription,
  FormField,
  FormItem,
  FormLabel,
  FormMessage,
} from "@/components/ui/form"
import { Input } from "@/components/ui/input"

const formSchema = z.object({
  username: z.string().min(2, {
    message: "Username must be at least 2 characters.",
  }),
})

export function ProfileForm() {
  const form = useForm<z.infer<typeof formSchema>>({
    resolver: zodResolver(formSchema),
    defaultValues: {
      username: "",
    },
  })
 
  function onSubmit(values: z.infer<typeof formSchema>) {
    console.log(values)
  }
 
  return (
    <Form {...form}>
      <form onSubmit={form.handleSubmit(onSubmit)} className="space-y-8">
        <FormField
          control={form.control}
          name="username"
          render={({ field }) => (
            <FormItem>
              <FormLabel>Username</FormLabel>
              <FormControl>
                <Input placeholder="shadcn" {...field} />
              </FormControl>
              <FormDescription>
                This is your public display name.
              </FormDescription>
              <FormMessage />
            </FormItem>
          )}
        />
        <Button type="submit">Submit</Button>
      </form>
    </Form>
  )
}

Examples

Form Validation

Username

Age

You must be at least 18 years old.

Field Array

Task 1

Task 2

Form Components

Component	Description
Form	The main wrapper component that provides form context from react-hook-form.
FormField	A component that provides context for form fields.
FormItem	Contains and provides context for form elements.
FormLabel	An accessible label for form controls.
FormControl	A component that wraps form controls and provides accessibility attributes.
FormDescription	A description component for providing additional information about a form field.
FormMessage	Displays validation errors for form fields.