Typescript extending Enum

Question

The case is you have a list of constants or Enum how you can do it ?

Here is the pseudo example code:

enum MyList
{
    A,
    B
}

enum MyList2
{
    C
         


        

Answer 1

This is a longstanding issue with numeric enums. For whatever reason (some backwards compatibility they can't break), a number is seen as assignable to a numeric enum, so you can do this with no error:

enum E {
  V = 100
}
const num = 100;
const e: E = num; // no error