How to get all values in a string enum?

Question

I have a string enum and need to get all the values. For instance, for the below enum, I'd like to return ["Red", "Yellow"]:

export enum FruitColors {
    Apple = "Red",
    Banana = "Yellow",
}

Answer 1

You're looking for Object.values()

Answer 2

According to this GitHub comment, this can be achieved the following way:

Object.keys(FruitColors).map(c => FruitColors[c]);

Answer 3

You can inspect the FruitColors object. Note that if you do not assign names for the enum values, the generated code will be different and a simple key/value based mapping will lead to wrong results. e.g.

export enum FruitColors {
    "Red",
    "Yellow",
}

Object.values(FruitColors); // ["Red", "Yellow", 0, 1]

Because the generated code is along these lines:

var FruitColors;
(function (FruitColors) {
    FruitColors[FruitColors["Red"] = 0] = "Red";
    FruitColors[FruitColors["Yellow"] = 1] = "Yellow";
})(FruitColors = exports.FruitColors || (exports.FruitColors = {}));

You could then just filter the results by typeof value == "string".