Detect language

OSCC · JavaScript, Browser · Oct 6, 2020

Detects the preferred language of the current user.

  • Use Navigator.language or the first value of Navigator.languages if available, otherwise return defaultLang.
  • Omit the second argument, defaultLang, to use 'en-US' as the default language code.
const detectLanguage = (defaultLang = 'en-US') =>
  navigator.language ||
  (Array.isArray(navigator.languages) && navigator.languages[0]) ||
  defaultLang;
detectLanguage(); // 'nl-NL'

Recommended snippets