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Javascript Programming Tutorials, Guides & Best Practices

Explore 93+ expertly crafted javascript tutorials, components, and code examples. Stay productive and build faster with proven implementation strategies and design patterns from DeveloperBreeze.

How to Translate URLs in React (2025 Guide)

Tutorial May 04, 2025

Update App.js:

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;

Globalization in React (2025 Trends & Best Practices)

Tutorial May 04, 2025

Your React app must support legal localization where applicable.

In 2025, Google rewards localized content.

Implementing Internationalization (i18n) in a Large React Application (2025 Guide)

Tutorial May 04, 2025

  • ✅ Add lang attribute dynamically to <html lang="...">
  • ✅ Use language subpaths (e.g., /en/home, /fr/home) for SEO indexing
  • ✅ Translate all visible UI, not just text
  • ✅ Localize URLs and metadata (title, description)
  • ✅ Use hreflang tags in SSR setups (Next.js, Remix)

Use localStorage via i18next-browser-languagedetector:

Building Micro-Frontends with Webpack Module Federation (2025 Guide)

Tutorial May 04, 2025

Visit http://localhost:8080 — you’ll see the React dashboard with the Vue analytics module seamlessly loaded via Module Federation.

Here are some crucial tips to future-proof your micro-frontend architecture in 2025:

State Management Beyond Redux: Using Zustand for Scalable React Apps

Tutorial May 03, 2025

const count = useStore((state) => state.count);

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