extension 0.2.0-nullsafety.0

Package including lot helpers for easy developing on dart language

example/main.dart

import 'package:extension/extension.dart';

enum AnyEnum {
  one,
  two,
  three,
}

class Meter<int> extends Enum<int> {
  const Meter(int val) : super(val);

  static const Meter HIGH = const Meter(100);
  static const Meter MIDDLE = const Meter(50);
  static const Meter LOW = const Meter(10);
}

void main() {
  /* String */
  // Capitalize first letter
  'test'.capitalizeFirstLetter(); // return Test

  // Check is email
  '[e-mail]'.isEmail; // return true
  'qwerty'.isEmail; // return false

  // Plural forms for russian words
  plural(1, 'дом', 'дома', 'домов'); // returns дом
  plural(2, 'дом', 'дома', 'домов'); // returns дома
  plural(5, 'дом', 'дома', 'домов'); // returns домов

  /* Date */

// Is today
  DateTime.now().isToday; // return bool

// Is yesterday
  DateTime.now().isYesterday; // return bool

// First day of month
  DateTime(2018, 9, 30).firstDayOfMonth; // returns DateTime(2018, 9, 1)

// Last day of month
  DateTime(2017, 3).lastDayOfMonth; // DateTime(2017, 3, 31)

// All days in month, DateTime array
  DateTime(2017, 3)
      .daysInMonth; // [DateTime(2017, 3, 1), DateTime(2017, 3, 2), ...]

  assert(DateUtils.isSameWeek(DateTime(2017, 3, 5), DateTime(2017, 3, 6)));

  /* Enum */

// Enum value by string

  enumValueByString(AnyEnum.values, 'one'); // Returns AnyEnum.one
  enumValueByString(AnyEnum.values, 'qwerty',
      orElse: () => AnyEnum.two); // Returns AnyEnum.two

// Enum with value
assert(Meter.HIGH == 100);
assert(Meter.HIGH is Meter);
}