Javascript Programming Tutorials, Guides & Best Practices

With this setup, your app can:

• Dynamically switch between translated URLs
• Support SEO-friendly, localized routing
• Scale to additional languages easily

const today = new Intl.DateTimeFormat(i18n.language).format(new Date());

new Intl.NumberFormat('en-US', {
  style: 'currency',
  currency: 'USD'
}).format(4999.99);

// Output: $4,999.99

npm install i18next react-i18next i18next-browser-languagedetector

Create a new file: src/i18n.js

Each micro-frontend should be versioned and deployed separately.

Use shared in Module Federation to prevent loading duplicate libraries (like react, vue, etc.).

You can persist state to localStorage or sessionStorage:

import create from 'zustand';
import { persist } from 'zustand/middleware';

const useStore = create(persist(
  (set) => ({
    count: 0,
    increase: () => set((state) => ({ count: state.count + 1 })),
  }),
  {
    name: 'counter-storage',
  }
));