Field Dinamis dengan useFieldArray

Selamat Datang

Apa Itu useFieldArray?

import { useFieldArray } from 'react-hook-form';

const { fields, append, remove } = useFieldArray({
  control,
  name: 'phoneNumbers',
});

Penyiapan: control dari useForm

const { register, control, handleSubmit } = useForm({
  defaultValues: { phoneNumbers: [{ value: '' }] },
});

Merender Kolom

return fields.map((field, index) => (
  <div key={field.id}>
    <input
      {...register(`phoneNumbers.${index}.value`)}
    />
    <button onClick={() => remove(index)}>Remove</button>
  </div>
));

Menambahkan Kolom Baru

<button onClick={() => append({ value: '' })}>
  Add Phone Number
</button>

Menghapus Kolom

<button onClick={() => remove(index)}>Delete</button>

Validasi Jumlah Minimum Kolom

const schema = z.object({
  emails: z.array(z.object({ value: z.string().email() }))
           .min(1, 'At least one email required'),
});

Menukar dan Memindahkan Kolom

swap(0, 2); // swap first and third items
move(3, 0); // move item at index 3 to the top

useFieldArray Bertingkat

Mengirim Data Larik

const onSubmit = (data) => {
  console.log(data.phoneNumbers);
  // [{ value: '555-1234' }, { value: '555-5678' }]
};

Pemeriksaan Singkat

Ringkasan

Kursus Selesai