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Simple, extensible and powerful enumeration implementation for dart and flutter

enum_plus #

platform platform pub package license

Simple, extensible and powerful enumeration implementation

Usage #

You must include EnumPlus in your Enum. If you are using enhanced enum. You should return your own value by overriding the toValue method.

import 'package:enum_plus/enum_plus.dart';

enum Animal with EnumPlus {
  DOG(0),
  CAT(1),
  HONEY_BEE(2);

  const Animal(this.value);

  final int value;

  @override
  dynamic toValue() => value;
}

Enum Methods #


equal #

Checks if this instance is equal to the given enum instance or value.

  print(Animal.DOG.equal(Animal.DOG)); // true
  print(Animal.DOG.equal(0)); // true
  print(Animal.DOG.equal(Animal.CAT)); // false
  print(Animal.DOG.equal(1)); // false

notEqual #

Checks if this instance is not equal to the given enum instance or value.

  print(Animal.DOG.notEqual(Animal.CAT)); // true
  print(Animal.DOG.notEqual(1)); // true
  print(Animal.DOG.notEqual(Animal.DOG)); // false
  print(Animal.DOG.notEqual(0)); // false

inside #

Checks if a matching enum instance or value is in the given values.

  print(Animal.DOG.inside([Animal.DOG, Animal.CAT])); // true
  print(Animal.DOG.inside([0, 1])); // true
  print(Animal.DOG.inside([Animal.HONEY_BEE, Animal.CAT])); // false
  print(Animal.DOG.inside([1, 2])); // false

outside #

Checks if a matching enum instance or value is not in the given values.

  print(Animal.DOG.outside([Animal.HONEY_BEE, Animal.CAT])); // true
  print(Animal.DOG.outside([1, 2])); // true
  print(Animal.DOG.outside([Animal.DOG, Animal.CAT])); // false
  print(Animal.DOG.outside([0, 1])); // false

getFriendlyName #

Transform the name into a friendly, formatted version.

  print(Animal.HONEY_BEE.getFriendlyName()); // Honey Bee

Enum List Methods #

hasName #

Check that the enum contains a specific name.

  print(Animal.values.hasName('DOG')); // true
  print(Animal.values.hasName('FISH')); // false

hasFriendlyName #

Check that the enum contains a specific friendly name.

  print(Animal.values.hasFriendlyName('Honey Bee')); // true
  print(Animal.values.hasFriendlyName('Dog')); // true
  print(Animal.values.hasFriendlyName('Fish')); // false

getNames #

Get all or a custom set of the enum names.

  print(Animal.values.getNames()); // [DOG, CAT, HONEY_BEE]
  print(Animal.values.getNames(values: [0, Animal.CAT])); // [DOG, CAT]

getName #

Get the name for a single enum value.

  print(Animal.values.getName(1)); // CAT
  print(Animal.values.getName(100)); //Bad state: No element

getNamesExcept #

Return names of all the enums except the given values.

  print(Animal.values.getNamesExcept([0, Animal.HONEY_BEE])); // [CAT]

getFriendlyNames #

Get all or a custom set of the enum friendly names.

  print(Animal.values.getFriendlyNames()); // [Dog, Cat, Honey Bee]
  print(Animal.values.getFriendlyNames(values: [0, Animal.HONEY_BEE])); // [Dog, Honey Bee]

getFriendlyNamesExcept #

Return friendly names of all the enums except the given values.

  print(Animal.values.getFriendlyNamesExcept([Animal.DOG, 1])); // [Honey Bee]

fromNames #

Get enums from names.

  print(Animal.values.fromNames(['DOG', 'CAT'])); // [Animal.DOG, Animal.CAT]
  print(Animal.values.fromNames(['CAT', 'FISH'])); // Bad state: No element

fromFriendlyNames #

Get enums from friendly names.

  print(Animal.values.fromFriendlyNames(['Honey Bee', 'Cat'])); // [Animal.HONEY_BEE, Animal.CAT]
  print(Animal.values.fromFriendlyNames(['Honey Bee', 'Fish'])); // Bad state: No element

fromName #

Make an enum instance from a given key.

  print(Animal.values.fromName('DOG')); // Animal.DOG
  print(Animal.values.fromName('FISH')); // Bad state: No element

fromFriendlyName #

Make an enum instance from a given friendly name.

  print(Animal.values.fromFriendlyName('Honey Bee')); // Animal.HONEY_BEE
  print(Animal.values.fromFriendlyName('Fish')); // Bad state: No element

toListExcept #

Return instances of all the enums except the given values.

  print(Animal.values.toListExcept([Animal.DOG, 1])); // [Animal.HONEY_BEE]

getRandom #

Get a random instance of the enum.

  print(Animal.values.getRandom()); // Animal.HONEY_BEE

getRandomName #

Get a random name of the enum.

  print(Animal.values.getRandomName()); // DOG

getRandomFriendlyName #

Get a random friendly name of the enum.

  print(Animal.values.getRandomFriendlyName()); // Cat

hasValue #

Check that the enum contains a specific value.

  print(Animal.values.hasValue(1)); // true
  print(Animal.values.hasValue(Animal.CAT)); // true
  print(Animal.values.hasValue(100)); // false

getValues #

Get all or a custom set of the enum values.

  print(Animal.values.getValues()); // [0, 1, 2]
  print(Animal.values.getValues(names: ['DOG'])); // [0]

getValue #

Get the value for a single enum key.

  print(Animal.values.getValue('DOG')); // 0
  print(Animal.values.getValue('FISH')); // Bad state: No element

getValuesExcept #

Return values of all the enums except the given values.

  print(Animal.values.getValuesExcept([Animal.DOG, 1])); // [2]

fromValue #

Make a new instance from an enum value.

  print(Animal.values.fromValue(1)); // Animal.CAT
  print(Animal.values.fromValue(Animal.CAT)); // Animal.CAT
  print(Animal.values.fromValue(100)); // Bad state: No element

fromValues #

Return instances from enum values.

  print(Animal.values.fromValues([0, Animal.CAT])); // [Animal.DOG, Animal.CAT]

coerce #

Attempt to instantiate a new Enum using the given key or value.

  print(Animal.values.coerce(1)); // Animal.CAT
  print(Animal.values.coerce('CAT')); // Animal.CAT
  print(Animal.values.coerce(100)); // null
  print(Animal.values.coerce('FISH')); // null

getRandomValue #

Get a random value of the enum.

  print(Animal.values.getRandomValue()); // 1
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verified publisherfaaytech.com

Simple, extensible and powerful enumeration implementation for dart and flutter

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License

BSD-3-Clause (LICENSE)

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