Optional locales: string | string[]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.
Optional options: ListFormatOptionsAn object
with some or all options of ListFormatOptions.
Intl.ListFormatOptions object.
MDN.
Returns an array containing those of the provided locales that are supported in list formatting without having to fall back to the runtime's default locale.
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.
Optional options: Pick<ListFormatOptions, "localeMatcher">An object. with some or all possible options.
An array of strings representing a subset of the given locale tags that are supported in list formatting without having to fall back to the runtime's default locale.
MDN.
Creates Intl.ListFormat objects that enable language-sensitive list formatting.