What are advanced enums in TypeScript?

What are advanced enums in TypeScript?

Advanced enums in TypeScript allow you to define a set of named constants with more complex features, like computed values.

Can you give me an example of a computed enum?

Sure! Here's an example:

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

In this case, Down will automatically be assigned the value 2, Left will be 3, and so on.

What about string enums? How do they work?

String enums are similar but use string values instead of numbers. For example:

enum Color {
    Red = 'RED',
    Green = 'GREEN',
    Blue = 'BLUE',
}

Are there any limitations to using enums in TypeScript?

Yes, enums can introduce some complexity, especially when used with union types or when trying to extend them. It's important to use them judiciously.