Implimenting Python range in typescript

I like python is great for a few things one being ranges so here we add a range generator in TypesScript

export function* range(start: number, stop?: number, step: number = 1): Generator<number, any, undefined> {
  const cur = (stop === undefined) ? 0 : start;
  const max = (stop === undefined) ? start : stop;
  for (let i = cur; step < 0 ? i > max : i < max; i += step) yield i;
}

  for (const i of range(5)) {
    console.log(i);
  }