Expose a shortcut method for fetching the neaest country.

src/index.ts

@@ -21,6 +21,7 @@ const WorldCities = {
   getByName: City.getByName,
   getCountry: Country.getByCountryCode,
   getNearestCity: City.getNearest,
+  getNearestCountry: City.getNearestCountry,
   getSqlitePath,
 };
 

src/lib/city.test.ts

@@ -48,6 +48,12 @@ test('.getNearest finds the correct closest cities', () => {
 });
 
 
+test('.getNearestCountry finds the correct countries', () => {
+  expect(City.getNearestCountry(50.4727969, -0.0509147645).name).toBe('United Kingdom');
+  expect(City.getNearestCountry(16.540405, -114.39702284).currencyName).toBe('Peso');
+});
+
+
 test('City schema exported', () => {
   const schema = City.schema;
   expect(Object.keys(schema.properties).length).toBe(6);

src/lib/city.ts

@@ -103,6 +103,15 @@ export class City {
   }
 
 
+  /**
+   * Get the country nearest to the GPS coordinates, as determined by the distance,
+   * as the crow flies.
+   */
+  static getNearestCountry(lat: number, lng: number) {
+    return City.getNearest(lat, lng).getCountry();
+  }
+
+
   static get schema() {
     return schema;
   }