supportedLocalesOf

Returns an array containing those of the provided locales that are supported in date and time formatting without having to fall back to the runtime's default locale.

Parameters

locales
  • A string with a BCP 47 language tag, or an array of such strings. For the general form and interpretation of the locales argument, see the Intl page.

options
  • An object with some or all of options of the formatting.