Function getDefaultLocale

packages/react-aria/src/i18n/useDefaultLocale.ts:24–40

()

 * Gets the locale setting of the browser.
 */
export function getDefaultLocale(): Locale {
  let locale =
    (typeof window !== 'undefined' && window[localeSymbol]) ||
    // @ts-ignore
    (typeof navigator !== 'undefined' && (navigator.language || navigator.userLanguage)) ||
    'en-US';

  try {
    Intl.DateTimeFormat.supportedLocalesOf([locale]);
  } catch {
    locale = 'en-US';
  }
  return {
    locale,
    direction: isRTL(locale) ? 'rtl' : 'ltr'
  };
}

let currentLocale = getDefaultLocale();
let listeners = new Set<(locale: Locale) => void>();