japan_prefecture 0.1.0

Type-safe Japanese prefecture data and utilities for Dart.

example/japan_prefecture_example.dart

import 'package:japan_prefecture/japan_prefecture.dart';

void main() {
  final tokyo = JapanPrefecture.tokyo;
  print(tokyo.code);
  print(tokyo.region);

  final osaka = JapanPrefecture.fromName('大阪');
  print(osaka);

  final kantoNames = JapanPrefecture.all.whereRegion(Region.kanto).names;
  print(kantoNames);

  final prefectures = [1, 13, 47].toPrefectures();
  print(prefectures);

  final data = <JapanPrefecture, int>{
    JapanPrefecture.osaka: 10,
    JapanPrefecture.hokkaido: 20,
    JapanPrefecture.tokyo: 30,
  };
  print(data.sortByJisCode());
}