async/await implementation with generator functions and yield

asynq

function asynq(generatorFunction) {
  const generator = generatorFunction();

  (function next(value) {
    const it = generator.next(value);

    if (it.done) {
      return it.value;
    } else {
      return Promise.resolve(it.value).then(next);
    }
  })();
}

asynq(function* getData(a) {
  yield 33;
  console.log("first");
  yield 44;
  const test = yield new Promise((resolve) => {
    resolve(66);
  });
  const response = yield fetch(
    "https://jsonplaceholder.typicode.com/todos/1"
  );
  console.log(response);
  console.log(test);
});