What does “keyof typeof” mean in TypeScript?

Question

Example:

Explain to me what keyof typeof means in TypeScript

enum ColorsEnum {
    white = \'#ffffff\',
    black = \'#000000\',
}

type         


        

Answer 1

An enum creates an instantiated object. With typeof we get the auto generated type of this enum.

Now we can get all indices with keyof to make sure Colors can only contain one of them.