Working with Enums

const Direction = {
  Up: 0,
  Down: 1,
  Left: 2,
  Right: 3,
} as const;

// Get to the const values of Direction
type Direction = (typeof Direction)[keyof typeof Direction];

// (typeof Direction)[keyof typeof Direction] yields 0 | 1 | 2 | 3
function move(direction: Direction) {
  // ...
}

move(30); // This breaks!

move(0); //This works!

move(Direction.Left); // This also works!