Javascript Programming Tutorials, Guides & Best Practices

Create i18n.js:

import i18n from 'i18next';
import { initReactI18next } from 'react-i18next';
import LanguageDetector from 'i18next-browser-languagedetector';

import en from './locales/en.json';
import fr from './locales/fr.json';

i18n
  .use(LanguageDetector)
  .use(initReactI18next)
  .init({
    resources: { en: { translation: en }, fr: { translation: fr } },
    fallbackLng: 'en',
    interpolation: {
      escapeValue: false,
    },
  });

export default i18n;

In 2025, more users are accessing the web from non-English regions than ever before. Some reasons to globalize your React app:

• 🌐 Reach global markets (especially MENA, LATAM, Asia-Pacific)
• 📈 Improve SEO for localized queries
• 🤝 Build trust with users by reflecting their cultural norms
• 💼 Comply with regional laws and accessibility standards

In this tutorial, you'll learn how to implement i18n in a scalable way using i18next, the most popular library for internationalizing React apps.

If you don’t have a project yet, initialize a new one:

Update src/App.js:

import React from 'react';

// Lazy load the remote Vue component
const Analytics = React.lazy(() => import('analytics_app/Analytics'));

function App() {
  return (
    <div className="App">
      <h1>Host Dashboard</h1>
      <React.Suspense fallback={<div>Loading Analytics...</div>}>
        <Analytics />
      </React.Suspense>
    </div>
  );
}

export default App;

By selecting only the necessary state slices, you can optimize component rendering and improve performance.

While Redux remains a powerful tool for state management, there are scenarios where Zustand might be a better fit: