95 lines
2.4 KiB
Dart
95 lines
2.4 KiB
Dart
// Classes +
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// Methods +
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// Enums +
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// Loops +
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// Generics (можно использовать List<>) +
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// Anonymous functions +
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// Future +
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// extension +
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void main () async {
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WorkScedule workScedule = WorkScedule();
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workScedule.push(new Worker('Слава', workDay: WeekDay.Wednesday, salary_per_day: 1500));
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workScedule.push(new Worker('Артём', workDay: WeekDay.Monday, salary_per_day: 2000));
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workScedule.push(new Worker('Лера', workDay: WeekDay.Tuesday, salary_per_day: 2500));
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workScedule.push(new Worker('Саша', workDay: WeekDay.Thursday));
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for (var worker in await workScedule.getWorkersAsync())
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print('${worker.name} работает в ${worker.workDay.name} и получвет в месяц ${worker.fullSalary(worker.salary_per_day)}');
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}
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class Worker {
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final String name;
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final WeekDay workDay;
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final int salary_per_day;
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Worker(this.name, { this.workDay = WeekDay.Monday, this.salary_per_day = 1000 });
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final fullSalary = (salary_per_day) => salary_per_day*4+7700;
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}
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class WorkScedule{
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List<Worker> _workers = [];
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void push(Worker worker){
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_workers.add(worker);
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}
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Future<List<Worker>> getWorkersAsync() async {
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await Future.delayed(Duration(seconds: 5));
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_workers.sort((a, b) => a.workDay.order.compareTo(b.workDay.order));
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return _workers;
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}
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}
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enum WeekDay {
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Monday,
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Tuesday,
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Wednesday,
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Thursday,
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Friday,
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Saturday,
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Sunday
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}
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extension WeekDayX on WeekDay{
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String get name {
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switch (this) {
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case WeekDay.Monday:
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return 'Понедельник';
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case WeekDay.Tuesday:
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return 'Вторник';
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case WeekDay.Wednesday:
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return 'Среда';
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case WeekDay.Thursday:
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return 'Четверг';
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case WeekDay.Friday:
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return 'Пятница';
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case WeekDay.Saturday:
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return 'Суббота';
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case WeekDay.Sunday:
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return 'Воскресенье';
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}
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}
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int get order {
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switch (this) {
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case WeekDay.Monday:
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return 1;
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case WeekDay.Tuesday:
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return 2;
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case WeekDay.Wednesday:
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return 3;
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case WeekDay.Thursday:
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return 4;
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case WeekDay.Friday:
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return 5;
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case WeekDay.Saturday:
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return 6;
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case WeekDay.Sunday:
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return 7;
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}
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}
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} |