ES8 Object.entries

es8-object-entries.js

const translations = {
  en: {
    home: "Home",
    greeting: "Welcome",
  },
  fr: {
    home: "Accueil",
    greeting: "Bienvenue",
  },
};

// Before Object.entries
Object.keys(translations).forEach((key) => {
  console.log(key, translations[key]);  // "en" "{ home: "Home", greeting: "Welcome" }"
                                        // "fr" "{ home: "Accueil, greeting: "Bienvenue" }"
});

Object.entries(translations).forEach(([key, value]) => {
  console.log(key, value);  // "en" "{ home: "Home", greeting: "Welcome" }"
                            // "fr" "{ home: "Accueil, greeting: "Bienvenue" }"
});