var userLang = navigator.language || navigator.userLanguage; console.log("Browser language:", userLang); // You can then use this language information to customize your page // For example, to display content in the detected language: if (userLang.startsWith("en")) { $("#welcomeMessage").text("Welcome!"); const userLanguage = navigator.language; // Check if the language starts with "en" (case-insensitive) if (!userLanguage.startsWith("en")) { console.log("The user's preferred language is not English."); } else { console.log("The user's preferred language is English."); }