Infinite counter on Javascript

infiniteCounter.js

function infiniteCounter (start=0, step=1) {
  const iter = function* () {
    let counts = start;
    while (true) {
      // console.log({ message: counts });
      yield counts;
      counts += step;
    }
  }();
  return () => iter.next().value;
};

// Usage

const generateId = infiniteCounter();
console.log( generateId());  // 0
console.log( generateId());  // 1
console.log( generateId());  // 2

const generateOdd = infiniteCounter(1, 2);
console.log( generateOdd() );  // 1
console.log( generateOdd() );  // 3
console.log( generateOdd() );  // 5