Discussion on: Daily Challenge #199 - List of All Rationals

function* allRationals(): Generator<[number, number]> {
  let rationals: [number, number][] = [[1, 1]];

  let i = 0;
  while (true) {
    const rational = rationals[i];
    yield rational;
    rationals.push([rational[0], rational[0] + rational[1]]);
    rationals.push([rational[0] + rational[1], rational[1]]);
    i++;
  }
}