Function convertToSupportedLocaleIn

convertToSupportedLocaleIn(
newLocale: string,
supportedLocalesToCheck: string[] | readonly string[],
): undefined | string
See convertToSupportedLocale

This takes the supported locale array so it can be used outside of the locale system
Parameters
- newLocale: string
- supportedLocalesToCheck: string[] | readonly string[]
Returns undefined | string
- Defined in pref/locale.ts:236