How to Get All Enum Values as an Array

How to get an array of all enum values in C#?

This gets you a plain array of the enum values using Enum.GetValues:

var valuesAsArray = Enum.GetValues(typeof(Enumnum));

And this gets you a generic list:

var valuesAsList = Enum.GetValues(typeof(Enumnum)).Cast<Enumnum>().ToList();

How to get all enum values as an array

For Swift 4.2 (Xcode 10) and later

There's a CaseIterable protocol:

enum EstimateItemStatus: String, CaseIterable {
    case pending = "Pending"
    case onHold = "OnHold"
    case done = "Done"

    init?(id : Int) {
        switch id {
        case 1: self = .pending
        case 2: self = .onHold
        case 3: self = .done
        default: return nil
        }
    }
}

for value in EstimateItemStatus.allCases {
    print(value)
}

---

For Swift < 4.2

No, you can't query an enum for what values it contains. See this article. You have to define an array that list all the values you have. Also check out Frank Valbuena's solution in "How to get all enum values as an array".

enum EstimateItemStatus: String {
    case Pending = "Pending"
    case OnHold = "OnHold"
    case Done = "Done"

    static let allValues = [Pending, OnHold, Done]

    init?(id : Int) {
        switch id {
        case 1:
            self = .Pending
        case 2:
            self = .OnHold
        case 3:
            self = .Done
        default:
            return nil
        }
    }
}

for value in EstimateItemStatus.allValues {
    print(value)
}

How to get all the values of an enum with typescript?]

You have to filter out the numeric keys, either via Object.values or Object.keys:

const colors = Object.keys(Color).filter((item) => {
    return isNaN(Number(item));
});
console.log(colors.join("\n"));

This will print:

Red
Green
Blue

A TypeScript enum will transpile in the end into a plain JavaScript object:

{ 
  '0': 'Red', 
  '1': 'Green',
  '2': 'Blue',
  Red: 0,
  Green: 1,
  Blue: 2
}

So you can use the numeric index as key to get the value, and you can use the value to lookup its index in the enum:

console.log(Color[0]); // "Red"
console.log(Color["0"]); // "Red"
console.log(Color["Red"]) // 0

How to get all values of an enum in PHP?

After some research I found the answer. You can use the static method: cases().

enum Status
{
    case PAID;
    case Cancelled;
}

Status::cases();

The cases method will return an array with an enum (UnitEnum interface) for each value.

Typescript enum values as array

Yes, it is possible to use:

Object.values(MyEnum)

because enum is an JS object after compilation:

var MyEnum;
(function (MyEnum) {
    MyEnum["FOO"] = "foo";
    MyEnum["BAR"] = "bar";
})(MyEnum || (MyEnum = {}));

Get All Enum Values To A List

You need to map with getValue

List<String> fruits = Stream.of(FruitsEnum.values())
                            .map(FruitsEnum::getValue) // map using 'getValue'
                            .collect(Collectors.toList());
System.out.println(fruits);

this will give you the output

[APPL, BNN]

How to get all values from python enum class?

You can use IntEnum:

from enum import IntEnum

class Color(IntEnum):
   RED = 1
   BLUE = 2

print(int(Color.RED))   # prints 1

To get list of the ints:

enum_list = list(map(int, Color))
print(enum_list) # prints [1, 2]

Converting enums to array of values (Putting all JSON values in an array)

I would convert the map into an array and store it as types.all.
You can create a method that does it automatically:

function makeEnum(enumObject){
   var all = [];
   for(var key in enumObject){
      all.push(enumObject[key]);
   }
   enumObject.all = all;
}

---

Related Topics