Validasi React useFormState: Panduan Komprehensif untuk Manajemen State Formulir yang Ditingkatkan

            
// Mengasumsikan implementasi useFormState hipotetis atau pustaka seperti @mantine/form
import React from 'react';
import { useFormState } from './useFormState'; // Ganti dengan import yang sebenarnya

function ContactForm() {
  const { values, errors, touched, handleChange, handleSubmit } = useFormState({
    initialValues: {
      name: '',
      email: '',
      message: '',
    },
    validationRules: {
      name: (value) => (value ? null : 'Nama wajib diisi'),
      email: (value) => (value && /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(value) ? null : 'Alamat email tidak valid'),
      message: (value) => (value ? null : 'Pesan wajib diisi'),
    },
    onSubmit: (values) => {
      console.log('Formulir dikirim:', values);
      // Tambahkan logika pengiriman formulir Anda di sini
    },
  });

  return (
    

      

        Nama:
        
        {errors.name && touched.name && {errors.name}}
      
      

        Email:
        
        {errors.email && touched.email && {errors.email}}
      
      

        Pesan:
                {errors.message && touched.message && <span className="error">{errors.message}</span>}
      </div>
      <button type="submit">Kirim</button>
    </form>
  );
}

export default ContactForm;
</code>
            <div class="copy-button-container">
              <button 
                data-code="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"
                class="copy-button"
                title="Copy code"
              >
                Copy
              </button>
            </div>
          </pre>
        </div>
      

<p><b>Penjelasan:</b></p>
<ul>
  <li>Kita menginisialisasi <code>useFormState</code> dengan nilai awal untuk bidang formulir dan aturan validasi.</li>
  <li>Fungsi <code>handleChange</code> memperbarui state formulir setiap kali bidang input berubah.</li>
  <li>Fungsi <code>handleSubmit</code> dipanggil saat formulir dikirimkan. Fungsi ini memeriksa kesalahan validasi sebelum mengirimkan data.</li>
  <li>Pesan kesalahan ditampilkan di sebelah bidang input yang sesuai jika ada kesalahan validasi dan bidang tersebut telah disentuh (blurred).</li>
</ul>

<h3>Contoh 2: Formulir Pendaftaran dengan Konfirmasi Kata Sandi</h3>

<p>Contoh ini mendemonstrasikan formulir pendaftaran dengan bidang untuk nama pengguna, email, kata sandi, dan konfirmasi kata sandi. Kita akan menerapkan validasi untuk memastikan semua bidang wajib diisi, alamat email valid, kata sandi memenuhi kriteria tertentu (misalnya, panjang minimum), dan konfirmasi kata sandi cocok dengan kata sandi.</p>


        <div class="code-block-wrapper">
          <pre data-language="code">
            <code>
// Mengasumsikan implementasi useFormState hipotetis atau pustaka seperti @mantine/form
import React from 'react';
import { useFormState } from './useFormState'; // Ganti dengan import yang sebenarnya

function RegistrationForm() {
  const { values, errors, touched, handleChange, handleSubmit } = useFormState({
    initialValues: {
      username: '',
      email: '',
      password: '',
      passwordConfirmation: '',
    },
    validationRules: {
      username: (value) => (value ? null : 'Nama pengguna wajib diisi'),
      email: (value) => (value && /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(value) ? null : 'Alamat email tidak valid'),
      password: (value) => (value && value.length >= 8 ? null : 'Kata sandi minimal harus 8 karakter'),
      passwordConfirmation: (value) =>
        value === values.password ? null : 'Konfirmasi kata sandi tidak cocok dengan kata sandi',
    },
    onSubmit: (values) => {
      console.log('Formulir dikirim:', values);
      // Tambahkan logika pengiriman formulir Anda di sini
    },
  });

  return (
    <form onSubmit={handleSubmit}>
      <div>
        <label htmlFor="username">Nama Pengguna:</label>
        <input
          type="text"
          id="username"
          name="username"
          value={values.username}
          onChange={handleChange}
        />
        {errors.username && touched.username && <span className="error">{errors.username}</span>}
      </div>
      <div>
        <label htmlFor="email">Email:</label>
        <input
          type="email"
          id="email"
          name="email"
          value={values.email}
          onChange={handleChange}
        />
        {errors.email && touched.email && <span className="error">{errors.email}</span>}
      </div>
      <div>
        <label htmlFor="password">Kata Sandi:</label>
        <input
          type="password"
          id="password"
          name="password"
          value={values.password}
          onChange={handleChange}
        />
        {errors.password && touched.password && <span className="error">{errors.password}</span>}
      </div>
      <div>
        <label htmlFor="passwordConfirmation">Konfirmasi Kata Sandi:</label>
        <input
          type="password"
          id="passwordConfirmation"
          name="passwordConfirmation"
          value={values.passwordConfirmation}
          onChange={handleChange}
        />
        {errors.passwordConfirmation && touched.passwordConfirmation && (
          <span className="error">{errors.passwordConfirmation}</span>
        )}
      </div>
      <button type="submit">Daftar</button>
    </form>
  );
}

export default RegistrationForm;
</code>
            <div class="copy-button-container">
              <button 
                data-code="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"
                class="copy-button"
                title="Copy code"
              >
                Copy
              </button>
            </div>
          </pre>
        </div>
      

<p><b>Penjelasan:</b></p>
<ul>
  <li>Kami menambahkan bidang <code>passwordConfirmation</code> dan aturan validasi untuk memastikan bahwa itu cocok dengan bidang <code>password</code>.</li>
  <li>Aturan validasi untuk <code>passwordConfirmation</code> mengakses objek <code>values</code> untuk membandingkan kedua bidang kata sandi.</li>
</ul>

<h3>Contoh 3: Formulir Dinamis dengan Bidang Array</h3>

<p>Contoh ini mendemonstrasikan formulir dinamis di mana jumlah bidang dapat berubah secara dinamis. Ini berguna untuk skenario seperti menambahkan beberapa keahlian atau pengalaman ke profil. Kita akan menggunakan array untuk menyimpan nilai-nilai bidang dinamis dan menyediakan fungsi untuk menambah dan menghapus bidang.</p>


        <div class="code-block-wrapper">
          <pre data-language="code">
            <code>
// Mengasumsikan implementasi useFormState hipotetis atau pustaka seperti @mantine/form
import React, { useState } from 'react';
import { useFormState } from './useFormState'; // Ganti dengan import yang sebenarnya

function SkillsForm() {
  const [skills, setSkills] = useState(['']); // Bidang keahlian awal

  const { values, errors, touched, handleChange, handleSubmit } = useFormState({
    initialValues: {
      skills: skills, // Inisialisasi dengan state keahlian saat ini
    },
    validationRules: {
      skills: (value) => {
        // Contoh validasi: Pastikan setiap keahlian tidak kosong
        for (let i = 0; i < value.length; i++) {
          if (!value[i]) {
            return 'Semua keahlian wajib diisi'; // Kembalikan satu pesan kesalahan
          }
        }
        return null; // Tidak ada kesalahan jika semua keahlian valid
      },
    },
    onSubmit: (values) => {
      console.log('Formulir dikirim:', values);
      // Tambahkan logika pengiriman formulir Anda di sini
    },
  });

  const handleSkillChange = (index, event) => {
    const newSkills = [...skills];
    newSkills[index] = event.target.value;
    setSkills(newSkills);

    // Perbarui state formulir secara manual karena kita mengelola array di luar useFormState
    handleChange({ target: { name: 'skills', value: newSkills } });
  };

  const addSkill = () => {
    setSkills([...skills, '']);
    // Picu re-validasi secara manual untuk bidang 'skills'
    handleChange({ target: { name: 'skills', value: [...skills, ''] } });
  };

  const removeSkill = (index) => {
    const newSkills = [...skills];
    newSkills.splice(index, 1);
    setSkills(newSkills);

    // Picu re-validasi secara manual untuk bidang 'skills'
    handleChange({ target: { name: 'skills', value: newSkills } });
  };

  return (
    <form onSubmit={handleSubmit}>
      <div>
        <label>Keahlian:</label>
        {skills.map((skill, index) => (
          <div key={index}>
            <input
              type="text"
              value={skill}
              onChange={(event) => handleSkillChange(index, event)}
            />
            <button type="button" onClick={() => removeSkill(index)}>Hapus</button>
          </div>
        ))}
        <button type="button" onClick={addSkill}>Tambah Keahlian</button>
        {errors.skills && touched.skills && <span className="error">{errors.skills}</span>}
      </div>
      <button type="submit">Kirim</button>
    </form>
  );
}

export default SkillsForm;
</code>
            <div class="copy-button-container">
              <button 
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          </pre>
        </div>
      

<p><b>Penjelasan:</b></p>
<ul>
  <li>Contoh ini memerlukan sedikit lebih banyak manajemen state manual untuk array dinamis.</li>
  <li>Kita menggunakan hook <code>useState</code> untuk mengelola array keahlian.</li>
  <li>Fungsi <code>handleSkillChange</code>, <code>addSkill</code>, dan <code>removeSkill</code> memperbarui array dan secara manual memicu fungsi <code>handleChange</code> dari <code>useFormState</code> untuk menjaga state formulir tetap sinkron.  Ini karena pustaka sering kali menangani properti *objek*, tetapi tidak selalu mutasi array tingkat atas.</li>
  <li>Aturan validasi untuk keahlian memeriksa apakah semua keahlian tidak kosong.</li>
</ul>

<h2>Teknik Validasi Lanjutan</h2>

<p>Selain validasi bidang wajib dasar, Anda dapat menerapkan teknik validasi yang lebih canggih untuk memastikan integritas data dan meningkatkan pengalaman pengguna. Berikut adalah beberapa contoh:</p>

<ul>
  <li><b>Ekspresi Reguler:</b> Gunakan ekspresi reguler untuk memvalidasi alamat email, nomor telepon, dan format data lainnya.</li>
  <li><b>Fungsi Validasi Kustom:</b> Buat fungsi validasi kustom untuk menerapkan logika validasi yang kompleks, seperti memeriksa nama pengguna yang unik atau memverifikasi kekuatan kata sandi.</li>
  <li><b>Validasi Asinkron:</b> Lakukan validasi asinkron, seperti memeriksa apakah nama pengguna tersedia di server, sebelum mengirimkan formulir. Ini biasanya didukung oleh pustaka seperti <code>react-hook-form</code>.</li>
  <li><b>Validasi Bersyarat:</b> Terapkan aturan validasi berdasarkan nilai bidang lain dalam formulir. Misalnya, Anda mungkin hanya memerlukan nomor telepon jika pengguna memilih negara tertentu.</li>
  <li><b>Pustaka Validasi Pihak Ketiga:</b> Integrasikan dengan pustaka validasi pihak ketiga, seperti Yup atau Zod, untuk mendefinisikan skema validasi dan menyederhanakan logika validasi. Pustaka ini sering kali menawarkan fitur yang lebih canggih, seperti transformasi dan paksaan data.</li>
</ul>

<h2>Pertimbangan Aksesibilitas</h2>

<p>Aksesibilitas adalah aspek penting dalam pengembangan formulir. Pastikan formulir Anda dapat diakses oleh pengguna dengan disabilitas dengan mengikuti panduan berikut:</p>

<ul>
  <li><b>Sediakan Label yang Jelas dan Ringkas:</b> Gunakan label deskriptif untuk semua bidang input untuk menjelaskan tujuannya.</li>
  <li><b>Gunakan HTML Semantik:</b> Gunakan elemen HTML semantik, seperti <code><label></code>, <code><input></code>, dan <code><textarea></code>, untuk menyusun formulir Anda.</li>
  <li><b>Sediakan Pesan Kesalahan:</b> Tampilkan pesan kesalahan yang jelas dan ringkas untuk memberi tahu pengguna tentang input yang tidak valid.</li>
  <li><b>Kaitkan Label dengan Input:</b> Gunakan atribut <code>for</code> pada elemen <code><label></code> untuk mengaitkannya dengan bidang input yang sesuai.</li>
  <li><b>Gunakan Atribut ARIA:</b> Gunakan atribut ARIA, seperti <code>aria-describedby</code> dan <code>aria-invalid</code>, untuk memberikan informasi tambahan kepada teknologi bantu.</li>
  <li><b>Pastikan Aksesibilitas Keyboard:</b> Pastikan semua elemen formulir dapat diakses menggunakan keyboard.</li>
  <li><b>Uji dengan Teknologi Bantu:</b> Uji formulir Anda dengan teknologi bantu, seperti pembaca layar, untuk memastikan bahwa formulir tersebut dapat diakses oleh pengguna dengan disabilitas.</li>
</ul>

<h2>Praktik Terbaik untuk useFormState</h2>

<p>Berikut adalah beberapa praktik terbaik yang harus diikuti saat menggunakan <code>useFormState</code>:</p>

<ul>
  <li><b>Jaga Aturan Validasi Tetap Ringkas:</b> Tentukan aturan validasi dengan cara yang jelas dan ringkas.</li>
  <li><b>Sediakan Pesan Kesalahan yang Ramah Pengguna:</b> Tampilkan pesan kesalahan yang mudah dipahami dan memberikan panduan yang membantu kepada pengguna.</li>
  <li><b>Uji Formulir Anda Secara Menyeluruh:</b> Uji formulir Anda dengan nilai input dan skenario yang berbeda untuk memastikan bahwa formulir berfungsi dengan benar dan menangani kesalahan dengan baik.</li>
  <li><b>Pertimbangkan Implikasi Kinerja:</b> Waspadai implikasi kinerja dari aturan validasi yang kompleks dan validasi asinkron.</li>
  <li><b>Gunakan Pustaka Formulir:</b> Pertimbangkan secara serius untuk menggunakan pustaka formulir yang sudah mapan (seperti <code>@mantine/form</code> atau <code>react-hook-form</code>), karena mereka menyediakan fitur yang tangguh, optimisasi kinerja, dan peningkatan aksesibilitas secara langsung.  Jangan menciptakan kembali roda!</li>
</ul>

<h2>Pertimbangan Global untuk Desain Formulir</h2>

<p>Saat merancang formulir untuk audiens global, sangat penting untuk mempertimbangkan perbedaan budaya dan persyaratan lokalisasi. Berikut adalah beberapa pertimbangan utama:</p>

<ul>
  <li><b>Format Alamat:</b> Format alamat sangat bervariasi antar negara. Sediakan bidang alamat yang fleksibel yang dapat mengakomodasi struktur alamat yang berbeda. Pertimbangkan untuk menggunakan pemilih negara untuk menyesuaikan bidang alamat secara otomatis berdasarkan negara yang dipilih.</li>
  <li><b>Format Nomor Telepon:</b> Format nomor telepon juga bervariasi antar negara. Sediakan pemilih kode negara dan izinkan pengguna memasukkan nomor telepon dalam format lokal mereka.</li>
  <li><b>Format Tanggal:</b> Format tanggal berbeda antar negara. Gunakan pemilih tanggal yang mendukung format tanggal yang berbeda atau izinkan pengguna memilih format tanggal pilihan mereka. Misalnya, AS biasanya menggunakan MM/DD/YYYY, sedangkan Eropa sering menggunakan DD/MM/YYYY.</li>
  <li><b>Format Mata Uang:</b> Format mata uang bervariasi antar negara. Tampilkan simbol dan format mata uang berdasarkan lokal pengguna.</li>
  <li><b>Urutan Nama:</b> Urutan nama bervariasi antar budaya. Beberapa budaya menggunakan nama depan terlebih dahulu, sementara yang lain menggunakan nama keluarga terlebih dahulu. Sediakan bidang terpisah untuk nama depan dan nama keluarga atau izinkan pengguna menentukan urutan nama pilihan mereka.</li>
  <li><b>Dukungan Bahasa:</b> Pastikan formulir Anda tersedia dalam beberapa bahasa untuk melayani audiens global. Gunakan pustaka lokalisasi untuk menerjemahkan label formulir, pesan kesalahan, dan teks lainnya.</li>
  <li><b>Sensitivitas Budaya:</b> Waspadai kepekaan budaya saat merancang formulir Anda. Hindari menggunakan gambar atau bahasa yang mungkin menyinggung budaya tertentu.</li>
</ul>

<h2>Kesimpulan</h2>

<p>Hook <code>useFormState</code> React, atau fitur yang disediakan oleh pustaka formulir yang menirunya, adalah alat yang ampuh untuk menyederhanakan manajemen state dan validasi formulir. Dengan memusatkan state formulir, mendefinisikan aturan validasi deklaratif, dan memberikan umpan balik waktu nyata kepada pengguna, <code>useFormState</code> memungkinkan Anda membangun formulir yang tangguh, aksesibel, dan ramah pengguna yang meningkatkan pengalaman pengguna dan integritas data.  Ingatlah untuk secara serius mempertimbangkan penggunaan pustaka yang sudah mapan untuk menangani pekerjaan berat untuk Anda.</p>

<p>Dengan mengikuti panduan dan praktik terbaik yang diuraikan dalam panduan komprehensif ini, Anda dapat menguasai seni pengembangan formulir di React dan menciptakan formulir luar biasa yang memenuhi kebutuhan pengguna dan aplikasi Anda.</p></div><footer class="mt-12 pt-8 border-t border-gray-200"><h3 class="text-sm font-semibold text-gray-900 mb-3 dark:text-white/90">Tags:</h3><div class="flex flex-wrap gap-2"><span class="inline-block bg-gray-100 text-gray-800 px-3 py-1 rounded-full text-sm hover:bg-gray-200 transition-colors dark:bg-neutral-800 dark:text-white dark:hover:bg-neutral-700">React</span><span class="inline-block bg-gray-100 text-gray-800 px-3 py-1 rounded-full text-sm hover:bg-gray-200 transition-colors dark:bg-neutral-800 dark:text-white dark:hover:bg-neutral-700">useFormState</span><span class="inline-block bg-gray-100 text-gray-800 px-3 py-1 rounded-full text-sm hover:bg-gray-200 transition-colors dark:bg-neutral-800 dark:text-white dark:hover:bg-neutral-700">validasi formulir</span><span class="inline-block bg-gray-100 text-gray-800 px-3 py-1 rounded-full text-sm hover:bg-gray-200 transition-colors dark:bg-neutral-800 dark:text-white dark:hover:bg-neutral-700">manajemen state</span><span class="inline-block bg-gray-100 text-gray-800 px-3 py-1 rounded-full text-sm hover:bg-gray-200 transition-colors dark:bg-neutral-800 dark:text-white dark:hover:bg-neutral-700">hook React</span><span class="inline-block bg-gray-100 text-gray-800 px-3 py-1 rounded-full text-sm hover:bg-gray-200 transition-colors dark:bg-neutral-800 dark:text-white dark:hover:bg-neutral-700">aksesibilitas formulir</span><span class="inline-block bg-gray-100 text-gray-800 px-3 py-1 rounded-full text-sm hover:bg-gray-200 transition-colors dark:bg-neutral-800 dark:text-white dark:hover:bg-neutral-700">pengalaman pengguna</span><span class="inline-block bg-gray-100 text-gray-800 px-3 py-1 rounded-full text-sm hover:bg-gray-200 transition-colors dark:bg-neutral-800 dark:text-white dark:hover:bg-neutral-700">pengembangan web</span><span class="inline-block bg-gray-100 text-gray-800 px-3 py-1 rounded-full text-sm hover:bg-gray-200 transition-colors dark:bg-neutral-800 dark:text-white dark:hover:bg-neutral-700">pengembangan front-end</span></div></footer></article></div><script>$RS=function(a,b){a=document.getElementById(a);b=document.getElementById(b);for(a.parentNode.removeChild(a);a.firstChild;)b.parentNode.insertBefore(a.firstChild,b);b.parentNode.removeChild(b)};$RS("S:2","P:2")</script><script>$RB=[];$RV=function(b){$RT=performance.now();for(var a=0;a<b.length;a+=2){var c=b[a],e=b[a+1];null!==e.parentNode&&e.parentNode.removeChild(e);var f=c.parentNode;if(f){var g=c.previousSibling,h=0;do{if(c&&8===c.nodeType){var d=c.data;if("/$"===d||"/&"===d)if(0===h)break;else h--;else"$"!==d&&"$?"!==d&&"$~"!==d&&"$!"!==d&&"&"!==d||h++}d=c.nextSibling;f.removeChild(c);c=d}while(c);for(;e.firstChild;)f.insertBefore(e.firstChild,c);g.data="$";g._reactRetry&&g._reactRetry()}}b.length=0};
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