getLocaleCurrencyName
function
Retrieves the name of the currency for the main country corresponding to a given locale. For example, 'US Dollar' for en-US.
getLocaleCurrencyName(locale: string): string | null
 Parameters
| locale | string | A locale code for the locale format rules to use. | 
Returns
string | null: The currency name, or null if the main country cannot be determined.
See also
    © 2010–2019 Google, Inc.
Licensed under the Creative Commons Attribution License 4.0.
    https://v7.angular.io/api/common/getLocaleCurrencyName