Javascript Programming Tutorials, Guides & Best Practices

npm install react-router-dom i18next react-i18next i18next-browser-languagedetector

/src
  /locales
    en.json
    fr.json
  /pages
    Home.js
    About.js
  i18n.js
  App.js
  routes.js

if (userCountry === 'EG') {
  showEGPPrices();
} else {
  showUSDPrices();
}

Or customize promotions, payment options, and availability by locale.

This saves the user's preferred language so it's remembered on the next visit.

Implementing i18n is no longer optional — it's essential in 2025 as user bases go global and inclusive design becomes the standard.

const HtmlWebpackPlugin = require('html-webpack-plugin');
const ModuleFederationPlugin = require('webpack').container.ModuleFederationPlugin;
const path = require('path');

module.exports = {
  mode: 'development',
  devServer: {
    port: 8080,
  },
  entry: './src/bootstrap.js',
  output: {
    publicPath: 'http://localhost:8080/',
  },
  plugins: [
    new ModuleFederationPlugin({
      name: 'app_shell',
      remotes: {
        analytics_app: 'analytics_app@http://localhost:8081/remoteEntry.js',
      },
      shared: require('./package.json').dependencies,
    }),
    new HtmlWebpackPlugin({ template: './public/index.html' }),
  ],
};

Update src/bootstrap.js:

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

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