Javascript Programming Tutorials, Guides & Best Practices

import React from 'react';
import { useTranslation } from 'react-i18next';
import { BrowserRouter, Routes, Route, useNavigate } from 'react-router-dom';
import { routes } from './routes';
import './i18n';

const LanguageSwitcher = () => {
  const { i18n } = useTranslation();
  const navigate = useNavigate();

  const switchLang = (lang) => {
    const currentPath = window.location.pathname;
    const currentPage = currentPath.split('/')[1];

    i18n.changeLanguage(lang).then(() => {
      // Re-map path using new language
      const t = i18n.getFixedT(lang);
      const mappedRoutes = {
        en: { accueil: 'home', 'a-propos': 'about-us' },
        fr: { home: 'accueil', 'about-us': 'a-propos' },
      };

      const newPath = `/${mappedRoutes[lang][currentPage] || ''}`;
      navigate(newPath);
    });
  };

  return (
    <div className="lang-switch">
      <button onClick={() => switchLang('en')}>EN</button>
      <button onClick={() => switchLang('fr')}>FR</button>
    </div>
  );
};

const App = () => {
  const { t } = useTranslation();

  return (
    <BrowserRouter>
      <LanguageSwitcher />
      <Routes>
        {routes(t).map((route, idx) => (
          <Route key={idx} path={route.path} element={route.element} />
        ))}
      </Routes>
    </BrowserRouter>
  );
};

export default App;

Create pages/Home.js:

• Wider reach
• Better SEO
• User trust and satisfaction
• Competitive advantage

• Integrate with Next.js for SSR & SEO boost
• Enable dynamic locale loading for performance
• Add translation CMS support (Locize, Phrase)

Update i18n.js:

import ICU from 'i18next-icu';

i18n
  .use(ICU) // Enables datetime and currency formatting
  .use(LanguageDetector)
  .use(initReactI18next)
  .init({
    ...
    interpolation: {
      format: (value, format, lng) => {
        if (format === 'datetime') {
          return new Intl.DateTimeFormat(lng).format(value);
        }
        if (format === 'currency') {
          return new Intl.NumberFormat(lng, {
            style: 'currency',
            currency: lng === 'fr' ? 'EUR' : 'USD',
          }).format(value);
        }
        return value;
      },
    }
  });

Install dependencies for Webpack configuration:

npm install -D webpack webpack-cli webpack-dev-server html-webpack-plugin

Zustand's simplicity and performance make it a compelling choice for projects where Redux might be overkill.

Zustand isn't just for simple state management; it also offers advanced features that cater to more complex scenarios: