Objects vs Enums https://www.typescriptlang.org/docs/handbook/enums.html#objects-vs-enums #gogofast

objectsVsEnums.ts

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

type Direction = typeof Direction[keyof typeof Direction];
function run(dir: Direction) {}

run(Direction.Right);