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

new Intl.DateTimeFormat('fr-FR').format(new Date());
// Output: 04/05/2025 (French format)

React example:

Example en.json:

{
  "welcome": "Welcome to our platform!",
  "language": "Language",
  "date_example": "Today's date is {{date, datetime}}",
  "price_example": "Price: {{price, currency}}"
}

Now let’s set up the main container app.

npx create-react-app app-shell
cd app-shell
npm install -D webpack webpack-cli webpack-dev-server html-webpack-plugin

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

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