extension 0.3.0

Package including lot helpers for easy developing on dart language

Package including lot helpers for easy developing on dart language.

Key Features • Getting Started

Key Features

• Small weight
• Simple usage

Getting Started

Import

import 'package:extension/extension.dart';

// Or by entity. Available: string, date, list, enum
import 'package:extension/<ENTITY NAME>.dart';

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

// Is yesterday
DateTime.now().isTomorrow; // 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)));

List

import 'package:extension/list.dart';

// Split list by chunks
[1, 2, 3, 4, 5, 6, 7, 8, 9].chunks(2); // => [[1, 2], [3, 4], [5, 6], [7, 8], [9]]

Enum

import 'package:extension/enum.dart';

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

// Enum value by string
// Deprecated! Usage dart 2.15 native support instead
final AnyEnum one = enumValueByString(AnyEnum.values, 'one'); // Returns AnyEnum.one
final AnyEnum one = enumValueByString(AnyEnum.values, 'qwerty', orElse: () => AnyEnum.two); // Returns AnyEnum.two

enum AnyEnum {
  one,
  two,
  three,
}

And... all api reference available here