asyncGenerator.js

const AsyncModule = generator => {
  return () => {
    const iterator = generator();

    const resolve = next => {
      if (next.done) {
        return Promise.resolve(next.value);
      }

      return Promise.resolve(next.value).then(response => {
        //recursively call resolve() until done is `true`
        return resolve(iterator.next(response));
      });
    };

    return resolve(iterator.next());
  };
};

const asyncGenerator = function*() {
  const response = yield fetch('https://pokeapi.co/api/v2/pokemon');
  const json = yield response.json();

  return json;
};

const getData = AsyncModule(asyncGenerator);
console.log(getData().then(d => console.log(d))); =>//prints api data