What are some examples of enum types in TypeScript?

What are some examples of enum types in TypeScript?

In TypeScript, enums are a way to define a set of named constants. For example, you can define an enum for colors like this:

enum Color {
    Red,
    Green,
    Blue
}

This creates an enum called Color with three possible values.

Can you show me how to use enums in a function?

Sure! Here's an example of a function that takes an enum as a parameter:

function getColorName(color: Color): string {
    return Color[color];
}

You can call this function like so:

console.log(getColorName(Color.Red)); // Output: Red

Are there numeric enums as well?

Yes, TypeScript also supports numeric enums. By default, enums are numeric and start from 0. You can also set the starting value:

enum Direction {
    Up = 1,
    Down,
    Left,
    Right
}

In this case, Up is 1, Down is 2, and so on.

What about string enums?

String enums are also supported in TypeScript. Here's an example:

enum Response {
    Yes = 'YES',
    No = 'NO'
}

In this case, the values of the enum are strings.