Function isEnum

isEnum<T extends Readonly<Record<string, string | number>>>(
enumObj: T,
): EnumTypeGuard<T>
Creates an EnumTypeGuard that checks that the value is a valid enum value.
Type Parameters
- T extends Readonly<Record<string, string | number>>
  The enum type
Parameters
- enumObj: T
  The enum object to create a guard for
Returns EnumTypeGuard<T>
A type guard for values of T (T[keyof T])
Example
```
enum Direction {
  up = 0,
  down = 1,
  left = 2,
  right = 3,
}

const isDirection = isEnum(Direction);

isDirection(Direction.up); // true
isDirection(2); // true
isDirection("hello"); // false
```
- Defined in isEnum/index.ts:43